{"cik":831259,"entityName":"Freeport-McMoRan Inc.","facts":{"dei":{"EntityCommonStockSharesOutstanding":{"label":"Entity Common Stock, Shares Outstanding","description":"Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","units":{"shares":[{"end":"2009-04-30","val":411754522,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-07-31","val":411795044,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-10-30","val":429877602,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2010-02-12","val":430565147,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009Q4I"},{"end":"2010-04-30","val":432647792,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-07-30","val":470436600,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-10-29","val":470879306,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2011-01-31","val":946498251,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-04-29","val":947315321,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-07-29","val":947880420,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-10-31","val":947911093,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2012-01-31","val":948358926,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-04-30","val":949116060,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-07-31","val":949247847,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-10-31","val":949318834,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2013-02-15","val":949530599,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2013-04-30","val":949742416,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-07-31","val":1037879851,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-10-31","val":1038155157,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2014-02-14","val":1038417983,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-04-30","val":1038713778,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-07-31","val":1039046081,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-10-31","val":1039118147,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2015-02-20","val":1039863035,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2015-04-30","val":1040044809,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-07-31","val":1040228261,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-10-30","val":1155870213,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2016-02-19","val":1251849800,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-02-19","val":1251849800,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2016-04-29","val":1252141504,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-04-29","val":1252141504,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-07-29","val":1328258134,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-10-31","val":1361688305,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2017-02-15","val":1445380168,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2017-04-28","val":1446812870,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-07-31","val":1447307382,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-10-31","val":1447590668,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2018-01-31","val":1447844743,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-04-30","val":1448794207,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-07-31","val":1449002815,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-10-31","val":1449033664,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2019-01-31","val":1449058885,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-04-30","val":1450634551,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-07-31","val":1450890574,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-10-31","val":1450913690,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2020-01-31","val":1450972426,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-04-30","val":1451970774,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-07-31","val":1452218624,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-10-31","val":1452868421,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2021-01-29","val":1458480446,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-04-30","val":1465526823,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-07-30","val":1468064383,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-10-29","val":1468473516,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2022-01-31","val":1454781055,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2022-01-31","val":1454781055,"accn":"0000831259-22-000012","fy":2021,"fp":"FY","form":"10-K/A","filed":"2022-02-18","frame":"CY2021Q4I"},{"end":"2022-04-29","val":1449262382,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-07-29","val":1429270314,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-10-31","val":1429327191,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2023-01-31","val":1430693689,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-04-28","val":1433286280,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-07-31","val":1433635627,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-10-31","val":1433977244,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2024-01-31","val":1434409010,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-04-30","val":1436489977,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-07-31","val":1436856316,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-10-31","val":1436927710,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2025-01-31","val":1437073006,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-04-30","val":1436200253,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-07-31","val":1435774134,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-10-31","val":1435930660,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2026-01-31","val":1437201606,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"EntityPublicFloat":{"label":"Entity Public Float","description":"The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.","units":{"USD":[{"end":"2009-02-17","val":11400000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2009-02-17","val":11400000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2009-02-17","val":11400000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q1I"},{"end":"2010-02-12","val":31400000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2010-02-12","val":31400000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2010-02-12","val":31400000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2010-02-12","val":31400000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q4I"},{"end":"2010-06-30","val":27600000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-06-30","val":27600000000000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-06-30","val":27600000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-06-30","val":27600000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q2I"},{"end":"2011-06-30","val":50100000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-06-30","val":50100000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-06-30","val":50100000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-06-30","val":50100000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q2I"},{"end":"2012-06-29","val":32100000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-06-29","val":32100000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-06-29","val":32100000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-06-29","val":32100000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q2I"},{"end":"2013-06-28","val":28300000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-06-28","val":28300000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-06-28","val":28300000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-06-28","val":28300000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q2I"},{"end":"2014-06-30","val":37318000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":37300000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-06-30","val":37300000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-06-30","val":37300000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q2I"},{"end":"2015-06-30","val":19065669477,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-06-30","val":19100000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-06-30","val":19100000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-06-30","val":19100000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-06-30","val":19065669477,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-06-30","val":19100000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q2I"},{"end":"2016-06-30","val":14600000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-06-30","val":14600000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-06-30","val":14600000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-06-30","val":14600000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q2I"},{"end":"2017-06-30","val":15500000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-06-30","val":15500000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q2I"},{"end":"2018-06-30","val":22400000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q2I"},{"end":"2019-06-30","val":13100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q2I"},{"end":"2020-06-30","val":14900000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q2I"},{"end":"2021-06-30","val":48600000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-06-30","val":48600000000,"accn":"0000831259-22-000012","fy":2021,"fp":"FY","form":"10-K/A","filed":"2022-02-18","frame":"CY2021Q2I"},{"end":"2022-06-30","val":41800000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q2I"},{"end":"2023-06-30","val":57100000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q2I"},{"end":"2024-06-30","val":69500000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q2I"},{"end":"2025-06-30","val":61900000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q2I"}]}}},"srt":{"DecreaseDueToSalesOfMineralsInPlace":{"label":"Decrease Due to Sales of Minerals in Place","description":"Amount of decrease in standardized measure of discounted future net cash flow as a result of sales of minerals in place.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":1049000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts":{"label":"Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of extensions, discoveries and improved recovery of proved oil and gas reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows","description":"Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.","units":{"USD":[{"end":"2016-12-31","val":345000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs","description":"Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves.","units":{"USD":[{"end":"2016-12-31","val":439000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense","description":"Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves.","units":{"USD":[{"end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows","description":"Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.","units":{"USD":[{"end":"2016-12-31","val":-269000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs","description":"Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves.","units":{"USD":[{"end":"2016-12-31","val":175000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows","description":"Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of ten percent a year.","units":{"USD":[{"end":"2016-12-31","val":-32000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"IncreaseDecreaseInEstimatedFutureDevelopmentCosts":{"label":"Changes in Estimated Future Development Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in estimated future development costs.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":146000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves":{"label":"Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in the estimated future income tax on future pretax net cash flows related to the entity's proved oil and gas reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts":{"label":"Net Increase (Decrease) in Sales and Transfer Prices and Production Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in sales and transfer prices and in production (lifting) costs related to future production.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":-341000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"PreviouslyEstimatedDevelopmentCostsIncurred":{"label":"Previously Estimated Development Costs Incurred","description":"Amount of increase in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":295000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy":{"label":"Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReserveNetEnergy":{"label":"Proved Developed and Undeveloped Reserve, Net (Energy)","description":"Energy measure of proved reserve of oil and gas, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"end":"2015-12-31","val":252000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":18000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"ProvedDevelopedAndUndevelopedReserveProductionEnergy":{"label":"Proved Developed and Undeveloped Reserve, Production (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from production, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2016-01-01","end":"2016-12-31","val":48000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy":{"label":"Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)","description":"Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2016-01-01","end":"2016-12-31","val":187000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProvedDevelopedReservesBOE1":{"label":"Proved Developed Reserves (Energy)","description":"Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.","units":{"Boe":[{"end":"2016-12-31","val":18000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"ProvedUndevelopedReserveBOE1":{"label":"Proved Undeveloped Reserves (Energy)","description":"Energy measure of proved undeveloped reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.","units":{"Boe":[{"end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"RevisionsOfPreviousQuantityEstimates":{"label":"Revisions of Previous Quantity Estimates","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of revisions of estimated quantity of oil and gas in proved reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts":{"label":"Sales and Transfers of Oil and Gas Produced, Net of Production Costs","description":"Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of sales and transfers of oil and gas produced.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":831000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease":{"label":"Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Period Increase (Decrease)","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow relating to proved oil and gas reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":-1629000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount":{"label":"Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount","description":"Amount of accretion of discount for the standardized measure of discounted future net cash flow related to proved oil and gas reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":139000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves":{"label":"Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves","description":"Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves.","units":{"USD":[{"end":"2015-12-31","val":1392000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-237000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}}},"us-gaap":{"AccountsPayableAndAccruedLiabilities":{"label":"Accounts Payable and Accrued Liabilities (Deprecated 2009-01-31)","description":"Carrying value as of the balance sheet date of obligations incurred and payable. pertaining to goods and services received from vendors; and for costs that are statutory in nature, are incurred in connection with contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent, salaries and benefits, and utilities. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date).","units":{"USD":[{"end":"2008-12-31","val":2766000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q4I"},{"end":"2009-03-31","val":1941000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"}]}},"AccountsPayableAndAccruedLiabilitiesCurrent":{"label":"Accounts Payable and Accrued Liabilities, Current","description":"Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.","units":{"USD":[{"end":"2008-12-31","val":2766000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":2766000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":2722000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-06-30","val":1820000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":1986000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":2038000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":2038000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":2038000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":2038000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":2038000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":2133000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":2065000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":2404000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":2441000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2441000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":2441000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":2318000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-12-31","val":2252000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2194000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2324000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2324000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3700000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":3708000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3653000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3653000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3554000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3355000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":3247000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3232000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2393000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2393000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":2393000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":2393000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":2393000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1780000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1880000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2098000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2321000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2321000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":2321000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":2321000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":2497000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2209000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2420000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2396000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2625000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2625000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":2625000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":2625000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":2625000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2599000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2721000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2755000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2576000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2576000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":2576000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":2576000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":2576000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":2465000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":2471000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":2533000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":2708000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2708000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":2708000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":2708000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":2708000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":2866000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":3106000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":2949000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":3495000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":3495000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":3495000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":3495000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":3495000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":3163000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":3853000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":3947000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":4027000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":4027000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":4027000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":4027000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":4027000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":3836000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":3642000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":3724000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":3729000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":3729000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":3729000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":3729000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":3729000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":3672000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":3910000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":3824000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":4057000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":4057000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":4057000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":4057000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":4057000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4078000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":4288000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":4098000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":4565000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent":{"label":"Accounts Payable and Accrued Liabilities","description":"Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.","units":{"USD":[{"end":"2015-12-31","val":151000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":168000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":139000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"}]}},"AccountsPayableAndOtherAccruedLiabilitiesCurrent":{"label":"Accounts Payable and Other Accrued Liabilities, Current","description":"Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":2441000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":2441000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2343000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2580000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2297000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":2297000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":2297000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2140000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2364000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2531000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3007000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":2708000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":2708000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2892000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3771000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3698000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3708000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":3708000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":3708000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3543000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3950000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3784000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3653000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":3653000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":3653000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3111000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3376000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3445000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3363000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":3255000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":3255000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3255000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2987000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":2888000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2569000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2347000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2017-12-31","val":140000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":95000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":143000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":88000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":128000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":128000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":153000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":120000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":128000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":68000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":68000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":81000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":108000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":108000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":151000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccountsPayableCurrent":{"label":"Accounts Payable, Current","description":"Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2015-12-31","val":2251000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1540000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1540000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1380000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1546000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1661000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1661000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1654000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1654000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1473000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1473000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2035000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":2035000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2701000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":2701000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2466000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":2466000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2789000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":2789000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2948000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccountsPayableOtherCurrent":{"label":"Accounts Payable, Other, Current","description":"Amount of obligations incurred classified as other, payable within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2009-12-31","val":184000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":136000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":136000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":129000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2011-12-31","val":110000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2012-12-31","val":104000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"AccountsPayableTradeCurrent":{"label":"Accounts Payable, Trade, Current","description":"Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2009-12-31","val":890000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1272000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1272000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":1353000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1353000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2012-12-31","val":1568000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"USD":[{"end":"2008-12-31","val":374000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":374000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":374000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":374000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":880000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":1329000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":1292000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":1517000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":1517000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":1517000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":1517000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":1517000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":1498000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":1009000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":1860000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":2132000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2132000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":2132000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":2132000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2132000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1588000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1533000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1139000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":892000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":892000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":892000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":892000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":892000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1165000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1052000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1424000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":927000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":927000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":927000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":927000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":927000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1082000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1244000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1749000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1728000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1728000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1728000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1728000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1728000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1511000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1838000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1514000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":953000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":953000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":953000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":953000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":953000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":940000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":995000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":949000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":626000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":689000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":689000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":660000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":660000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":660000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":660000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":645000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":837000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":818000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":694000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":788000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1126000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1126000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1126000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1126000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1126000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":734000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":802000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1024000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1246000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1246000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1246000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1246000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1322000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1222000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1077000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1064000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":829000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":829000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":829000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":829000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":829000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":781000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":725000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":731000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":741000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":741000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":741000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":741000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":741000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":515000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":717000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":893000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":892000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":892000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":892000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":892000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":892000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":1248000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":1100000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":931000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1168000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1168000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1168000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1168000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1168000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1537000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":977000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":844000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1336000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1336000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1336000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1336000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1336000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1134000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":675000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":792000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1209000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1209000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":1209000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":1209000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":1209000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1494000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":1128000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":979000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":578000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":578000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":578000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":578000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":578000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":743000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":941000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":916000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":977000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccretionExpense":{"label":"Accretion Expense","description":"Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":97000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":80000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":80000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":80000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":79000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":79000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":79000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":79000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":77000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":77000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":77000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":78000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":78000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AccretionOfDiscount":{"label":"Accretion of Discount (Deprecated 2016-01-31)","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of passage of time.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":701000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":701000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":701000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":701000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1195000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1195000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1195000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":797000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":797000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AccrualForEnvironmentalLossContingencies":{"label":"Accrual for Environmental Loss Contingencies","description":"Total costs accrued as of the balance sheet date for environmental loss contingencies.","units":{"USD":[{"end":"2007-12-31","val":1268000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-12-31","val":1401000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":1401000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-12-31","val":1464000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":1464000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":1464000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1422000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1422000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":1422000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":1422000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1453000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1453000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":1453000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":1453000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1222000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1222000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":1222000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":1222000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":1222000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1167000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1167000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":1167000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1167000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2013-12-31","val":1167000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1174000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1174000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1174000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":1174000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":1174000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1215000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1215000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":1215000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2015-12-31","val":1215000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1221000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1221000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":1221000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2016-12-31","val":1221000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1439000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1439000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":1439000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2017-12-31","val":1439000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1511000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1511000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":1511000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2018-12-31","val":1511000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1561000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1561000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":1561000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2019-12-31","val":1561000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1584000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1584000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":1584000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2020-12-31","val":1584000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1664000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1664000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":1664000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2021-12-31","val":1664000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1740000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1740000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":1740000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2022-12-31","val":1740000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1939000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1939000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":1939000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2040000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":2040000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2018000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses":{"label":"Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses","description":"Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":33000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":33000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":241000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":241000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":241000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":56000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":56000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":56000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":38000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":38000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":38000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":60000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":60000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":40000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":57000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":43000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":43000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":195000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":195000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":82000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"AccrualForEnvironmentalLossContingenciesGross":{"label":"Accrual for Environmental Loss Contingencies, Gross","description":"Undiscounted amount of the accrual for environmental loss contingencies.","units":{"USD":[{"end":"2016-12-31","val":2300000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3300000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3300000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3200000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3700000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3700000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3700000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4500000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":4400000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4300000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestitures":{"label":"Accrual for Environmental Loss Contingencies, Increase (Decrease) for Acquisitions and Divestitures","description":"Amount of increase (decrease) in the obligation for environmental loss contingencies from business acquisitions (divestitures).","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":117000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2016-01-01","end":"2016-12-31","val":1100000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1300000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1400000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1400000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1500000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1500000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1600000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1800000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1900000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-91000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForRevisionInEstimates":{"label":"Accrual for Environmental Loss Contingencies, Revision in Estimates","description":"Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":35000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":31000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-68000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-68000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-68000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-09-30","val":-36000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":-82000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-182000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-182000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-182000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-77000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-77000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-77000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-77000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-43000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-43000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-43000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-58000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-58000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-58000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-20000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-20000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-14000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2025-07-01","end":"2025-09-30","val":81000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"AccrualForEnvironmentalLossContingenciesPayments":{"label":"Accrual for Environmental Loss Contingencies, Payments (Deprecated 2016-01-31)","description":"The aggregate amount disbursed during the reporting period to settle environmental loss contingencies.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-114000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-76000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-76000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-158000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-158000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-158000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-121000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-121000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-121000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-199000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-199000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":199000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-130000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":130000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":130000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":130000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":80000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":80000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":80000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":67000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":67000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AccrualForEnvironmentalLossContingenciesPayments1":{"label":"Accrual for Environmental Loss Contingencies, Payments","description":"Amount of cash outflow to settle environmental loss contingencies.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":80000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":67000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":67000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":58000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":58000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":58000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":64000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":64000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":64000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":84000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":84000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":84000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":74000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":74000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":64000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":64000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":64000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":77000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":77000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":77000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":115000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":115000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":115000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":112000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":112000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":119000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AccrualForEnvironmentalLossContingenciesProvisionForNewLosses":{"label":"Accrual for Environmental Loss Contingencies, Provision for New Losses (Deprecated 2016-01-31)","description":"The amount added to the accrual for newly incurred environmental loss contingencies. These additions include remediation expense and interest accretion. These additions do not relate to changes in the environmental accrual related to a business acquisition or divestiture, to currency movements, or revisions in previously existing estimates.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":36000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":40000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":40000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":19000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":132000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":132000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":132000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":33000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":33000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, after Year Five","description":"Undiscounted amount of accrual for environmental loss contingency to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":1900000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1800000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1700000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2000000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1800000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1800000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1800000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1800000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2700000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2700000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2700000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3200000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3200000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3200000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3900000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3800000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3800000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year Five","description":"Undiscounted amount of accrual for environmental loss contingency to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":65000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":43000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":110000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":110000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":79000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":85000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":85000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":103000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":88000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":100000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":100000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":97000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":108000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":77000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":61000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year Four","description":"Undiscounted amount of accrual for environmental loss contingency to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":49000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":76000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":122000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":108000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":92000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":92000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":95000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":119000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":88000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":98000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":100000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":128000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":112000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":86000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year Two","description":"Undiscounted amount of accrual for environmental loss contingency to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":93000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":130000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":225000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":151000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":151000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":127000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":127000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":108000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":132000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":117000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":95000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":80000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":120000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":147000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":111000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":120000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year Three","description":"Undiscounted amount of accrual for environmental loss contingency to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":86000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":80000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":124000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":116000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":120000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":104000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":104000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":90000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":117000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":119000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":95000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":105000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":93000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":139000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":122000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":118000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear":{"label":"Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year One","description":"Undiscounted amount of accrual for environmental loss contingency to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":138000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":205000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":186000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":121000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":105000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":134000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":106000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":83000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":89000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":125000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":131000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":131000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":125000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccrualForTaxesOtherThanIncomeTaxesCurrent":{"label":"Accrual for Taxes Other than Income Taxes, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2015-12-31","val":201000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":90000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":90000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":109000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":109000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":79000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":79000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":76000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":76000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":64000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":64000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":75000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":75000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":88000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":88000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":81000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":81000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":79000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccruedEnvironmentalLossContingenciesCurrent":{"label":"Accrued Environmental Loss Contingencies, Current","description":"Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.","units":{"USD":[{"end":"2008-12-31","val":-120000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":-168000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":-168000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-138000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":-138000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":-138000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-12-31","val":-205000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":-205000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":-205000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-186000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":-186000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":186000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-121000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":121000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":121000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":121000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":105000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":105000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":105000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":105000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":100000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":134000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":134000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":134000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-12-31","val":106000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":106000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":106000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":83000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":83000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":83000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":64000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":64000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":64000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-12-31","val":125000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":125000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":125000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-12-31","val":131000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":131000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":131000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":131000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":131000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":125000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccruedEnvironmentalLossContingenciesNoncurrent":{"label":"Accrued Environmental Loss Contingencies, Noncurrent","description":"Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.","units":{"USD":[{"end":"2008-12-31","val":1281000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":1296000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":1296000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1284000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1284000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":1284000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1248000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1248000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":1248000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1036000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1036000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":1036000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1046000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1046000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":1046000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1046000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1069000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1069000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1069000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":1069000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1115000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1115000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1115000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":1115000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1092000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1092000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":1092000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1379000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1379000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":1379000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1455000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1455000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":1455000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1501000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1501000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":1501000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1600000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1600000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":1600000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1615000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1615000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":1615000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1808000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1808000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":1808000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1909000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1909000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1893000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccruedIncomeTaxesCurrent":{"label":"Accrued Income Taxes, Current","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.","units":{"USD":[{"end":"2009-12-31","val":474000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":648000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":648000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":648000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":648000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":648000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":806000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":258000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":110000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":163000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":163000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":163000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":163000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":163000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":229000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":48000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":59000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":93000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":93000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":93000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":93000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":93000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":125000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":114000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":141000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":184000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":184000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":184000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":184000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":184000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":162000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":240000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":153000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":410000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":410000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":410000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":410000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":410000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":318000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":364000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":67000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":75000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":30000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":30000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":55000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":161000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":190000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":196000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":464000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":565000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":565000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":565000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":565000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":583000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":749000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":569000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":645000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":165000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":165000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":165000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":165000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":165000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":150000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":63000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":61000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":119000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":128000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":47000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":119000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":324000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":324000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":324000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":324000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":324000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":647000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":919000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":1237000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1541000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1541000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1541000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1541000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1541000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1392000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":507000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":439000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":744000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":744000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":744000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":744000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":744000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":846000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":531000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":489000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":786000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":786000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":786000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":786000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":786000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1322000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":898000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":1072000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":859000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":859000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":859000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":859000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":859000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":857000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":389000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":528000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":456000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccruedPayrollTaxesCurrentAndNoncurrent":{"label":"Accrued Payroll Taxes","description":"Carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs.","units":{"USD":[{"end":"2018-12-31","val":72000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"AccruedRoyaltiesCurrent":{"label":"Accrued Royalties, Current","description":"Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2017-12-31","val":68000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":29000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"AccruedRoyaltiesCurrentAndNoncurrent":{"label":"Accrued Royalties","description":"Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties.","units":{"USD":[{"end":"2015-12-31","val":33000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":46000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":46000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":68000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2021-12-31","val":33000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":41000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":41000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":13000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"}]}},"AccruedSalariesCurrent":{"label":"Accrued Salaries, Current","description":"Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2009-12-31","val":188000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":244000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":244000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":257000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":257000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":287000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2015-12-31","val":212000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":225000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":225000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":235000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":241000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":273000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":273000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":249000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":249000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":312000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":312000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":334000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":334000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":329000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":329000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":343000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":343000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":361000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":361000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":382000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment":{"label":"Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment","description":"Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.","units":{"USD":[{"end":"2009-12-31","val":5593000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":6594000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":6594000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":7526000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":7526000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":8651000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":8651000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10207000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":10207000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11264000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":11264000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":10251000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":12742000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":11497000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":11412000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":12737000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":12737000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":14246000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":41802000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":43095000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":43095000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":43773000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":43773000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":45065000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":45065000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":46673000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":46673000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":48273000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":48273000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":49272000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":49272000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":51281000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":23831000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":25694000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":{"label":"AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax","description":"Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).","units":{"USD":[{"end":"2009-12-31","val":-5000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-3000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":-3000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":-4000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":-4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":-4000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-4000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":-4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":-4000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":-4000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":-4000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":-5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":-5000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":-5000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":-6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":-6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":-6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":-6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax":{"label":"Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax","description":"Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"end":"2009-12-31","val":231000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":269000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":269000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":388000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":388000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":467000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":427000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":427000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":507000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":507000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":507000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-12-31","val":330000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":410000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":410000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":410000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":548000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":548000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":548000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":507000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":507000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax","description":"Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.","units":{"USD":[{"end":"2009-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":6000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":6000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":5000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":5000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":5000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":10000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":10000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":10000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":10000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":10000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":10000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":10000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2008-12-31","val":-305000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":-305000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":-305000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":-305000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":-237000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":-231000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":-224000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":-273000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-03-31","val":-270000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":-268000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":-263000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":-323000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":-318000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":-316000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-314000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":-465000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":-453000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-448000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":-439000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":-506000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-03-31","val":-500000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-495000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-484000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":-405000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-03-31","val":-402000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":-401000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":-394000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":-544000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":-532000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":-523000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":-509000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":-503000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":-503000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":-503000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":-488000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":-476000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-548000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":-548000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":-548000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":-548000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":-548000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":-537000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":-456000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":-443000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":-487000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":-487000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":-487000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":-487000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":-487000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":-475000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":-464000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":-532000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":-605000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":-605000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":-605000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":-605000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":-605000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":-594000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":-582000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":-570000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":-676000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":-676000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":-676000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":-676000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":-676000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":-668000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":-652000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":-728000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":-583000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":-583000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":-583000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":-583000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":-583000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":-580000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":-576000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":-572000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":-388000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":-388000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":-388000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":-388000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":-388000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":-387000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":-386000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":-385000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":-320000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":-320000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":-320000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":-320000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":-320000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":-319000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":-318000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":-317000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":-274000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":-274000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":-274000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":-274000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":-274000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":-274000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":-274000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":-273000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":-314000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":-314000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":-314000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":-314000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":-314000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":-313000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":-311000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":-310000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":-305000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AdditionalPaidInCapital":{"label":"Additional Paid in Capital","description":"Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.","units":{"USD":[{"end":"2008-12-31","val":13989000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":13989000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":13989000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":13989000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":14760000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":14785000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":15627000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":15680000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":15680000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":15680000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":15680000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":15637000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":15783000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":18639000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":18662000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":18751000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":18751000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":18751000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":18751000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":18751000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":18893000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":18942000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":18974000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":19007000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":19007000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":19007000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":19007000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":19007000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":19043000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19068000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":19094000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":19119000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":19119000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":19119000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":19119000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":19119000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":19163000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":22072000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":22092000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":22161000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":22161000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":22161000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":22161000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":22161000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":22192000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":22221000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":22248000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":22281000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":22307000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":22330000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":23335000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":24283000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":24333000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":24333000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":25105000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":25601000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":26690000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":26690000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":26690000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":26690000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":26690000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":26725000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":26734000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":26743000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":26751000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":26751000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":26751000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":26751000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":26751000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":26729000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":26667000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":26603000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":26013000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":26013000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":26013000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":26013000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":26013000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":25963000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":25949000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":25880000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":25830000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":25830000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":25830000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":25830000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":25830000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":25875000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":25905000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":25934000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":26037000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":26037000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":26037000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":26037000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":26037000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":26080000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":26084000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":26023000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":25875000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":25875000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":25875000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":25875000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":25875000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":25835000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":25661000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":25483000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":25322000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":25322000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":25322000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":25322000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":25322000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":25227000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":25028000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":24833000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":24637000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":24637000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":24637000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":24637000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":24637000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":24488000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":24321000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":23997000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":23797000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":23797000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":23797000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":23797000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":23797000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":23627000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":23642000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":23660000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":23680000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AdditionsToNoncurrentAssets":{"label":"Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2013-01-31)","description":"Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":1587000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":527000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":296000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":877000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":350000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1412000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1412000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":505000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1032000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":1032000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":527000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":527000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":1749000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-09-30","val":1749000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":717000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":717000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":2534000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2534000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":707000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":707000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-06-30","val":1547000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":840000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2518000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":971000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3494000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":805000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"}]}},"AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther":{"label":"Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31)","description":"Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-33000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":56000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":59000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":76000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":89000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":30000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":36000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":36000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":53000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":53000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":123000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":123000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":26000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":33000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":92000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-11000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"}]}},"AdjustmentsToAdditionalPaidInCapitalOther":{"label":"Adjustments to Additional Paid in Capital, Other","description":"Amount of other increase (decrease) in additional paid in capital (APIC).","units":{"USD":[{"start":"2019-01-01","end":"2019-09-30","val":-22000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-22000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-22000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-22000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-22000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-22000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-22000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":86000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":100000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":100000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":57000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":69000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":100000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":100000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":100000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":47000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":74000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":92000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":129000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":129000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":129000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":45000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":68000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":92000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":117000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":117000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":117000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":32000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":54000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":77000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":41000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":66000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":89000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":153000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":153000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":153000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":153000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":26000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":52000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":75000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":98000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":98000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":98000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":96000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":35000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":57000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":77000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":90000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":90000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":23000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":23000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":33000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":37000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":55000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":55000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":55000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":31000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":40000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":49000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":35000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":7000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":42000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":42000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":42000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":41000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":41000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":50000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":50000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":9000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":59000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":59000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":9000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":9000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":66000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":66000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":66000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":16000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":16000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":10000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":10000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":9000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":9000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":44000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":44000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":44000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":24000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":24000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":34000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":34000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":10000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":10000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":42000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":42000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":20000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":20000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":13000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":13000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":41000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":41000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":21000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":21000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":24000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":24000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-24000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-24000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-10000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-10000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":14000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":14000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":12000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":12000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":15000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":15000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":15000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-23000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-23000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-9000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-9000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":14000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":14000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":2000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":2000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":11000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":11000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":14000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":14000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":35000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":18000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":27000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":-2000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":9000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":13000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":41000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":14000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":14000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":26000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":54000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":23000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":37000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":14000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":50000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":13000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":63000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation":{"label":"Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation","description":"Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":10000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":13000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":13000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-12-31","end":"2009-12-31","val":6000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":6000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":6000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":1000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":8000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":8000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":6000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":14000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":16000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":24000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":6000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"}]}},"AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet":{"label":"Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net","description":"Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":-2000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-2000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":-4000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-4000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":122000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":115000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":115000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":186000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":186000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":186000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":184000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":130000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":130000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":96000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":95000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AllocatedShareBasedCompensationExpenseNetOfTax":{"label":"Share-based Payment Arrangement, Expense, after Tax","description":"Amount, after tax, of expense for award under share-based payment arrangement.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":69000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":61000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":61000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":106000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":65000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":65000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":82000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":82000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":82000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":67000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":67000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":67000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":70000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":70000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":70000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":59000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":59000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":59000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":94000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":94000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":94000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":93000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":93000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":93000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":91000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":91000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":91000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":104000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":104000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":105000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"AlternativeInvestmentsFairValueDisclosure":{"label":"Alternative Investment, Fair Value Disclosure (Deprecated 2018-01-31)","description":"Fair value of investment in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes measurement of net asset value as estimate of fair value.","units":{"USD":[{"end":"2015-12-31","val":75000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":78000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":80000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":80000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2010-01-01","end":"2010-03-31","val":5000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":3000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":3000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":3000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":3000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":5000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":5000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":14000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":14000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":14000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":4000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":10000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":10000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":7000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":11000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":11000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":12000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":12000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":6000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":3000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":2000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":12000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":12000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":10000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":10000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":11000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":11000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":10000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":10000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":10000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":10000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":10000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":10000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":13000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":13000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":2000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"}]}},"AssetImpairmentCharges":{"label":"Asset Impairment Charges","description":"Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2025-01-01","end":"2025-12-31","val":73000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AssetRetirementObligation":{"label":"Asset Retirement Obligation","description":"The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"USD":[{"end":"2007-12-31","val":728000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-12-31","val":712000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":712000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-12-31","val":731000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":731000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":731000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":856000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":856000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":856000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":856000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":921000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":921000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":921000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":921000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":1146000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":1135000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-06-30","val":2199000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2183000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2328000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2328000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":2328000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":2319000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2013-12-31","val":2316000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2769000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2769000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2747000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":2744000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":2744000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2796000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2774000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2771000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":2771000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2015-12-31","val":2774000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2635000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2635000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":2638000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2016-12-31","val":2638000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2580000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2583000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":2583000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2017-12-31","val":2583000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2547000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2547000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":2547000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2018-12-31","val":2547000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2505000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2505000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":2505000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2019-12-31","val":2505000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2472000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2472000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":2472000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2020-12-31","val":2472000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2716000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":2716000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":2716000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2021-12-31","val":2716000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3043000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":3043000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":3043000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2022-12-31","val":3043000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3001000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":3001000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":3001000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3684000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":3684000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3836000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AssetRetirementObligationAccretionExpense":{"label":"Asset Retirement Obligation, Accretion Expense","description":"Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":51000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":52000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":52000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":54000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":54000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":54000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":58000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":58000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":58000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":55000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":55000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":55000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":33000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":66000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":117000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":117000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":116000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":116000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":131000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":131000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":131000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":131000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":137000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":137000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":137000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":124000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":124000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":124000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":110000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":110000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":110000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":118000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":118000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":118000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":131000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":131000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":131000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":112000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":112000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":112000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":134000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":134000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":134000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":154000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":154000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":175000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AssetRetirementObligationCashPaidToSettle":{"label":"Asset Retirement Obligation, Cash Paid to Settle","description":"Amount of cash paid during the period to settle an asset retirement obligation. Amounts paid to settle an asset retirement obligation are generally included in the operating section of the Statement of Cash Flows.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-38000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-49000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":49000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-47000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":47000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":47000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-28000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":-62000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":107000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":97000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":99000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":99000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":101000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":101000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":133000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":132000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":132000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":132000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":188000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":188000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":188000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":160000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":160000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":160000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":170000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":170000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":170000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":201000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":201000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":201000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":197000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":197000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":197000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":134000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":134000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":134000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":122000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":122000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":126000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AssetRetirementObligationCurrent":{"label":"Asset Retirement Obligation, Current","description":"Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"USD":[{"end":"2008-12-31","val":-42000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":-46000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":-46000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-69000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":-69000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":-69000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-12-31","val":-31000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":-31000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":-31000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-55000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":-55000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":55000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":130000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":125000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-115000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":115000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":115000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":107000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":191000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":191000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":189000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":189000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":172000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":172000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":172000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":172000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":240000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":240000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":240000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":254000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":286000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":286000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-12-31","val":317000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":317000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":317000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-12-31","val":330000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":330000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":330000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":268000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":268000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":268000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":200000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":200000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":200000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-12-31","val":195000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":195000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":195000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-12-31","val":185000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":185000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":185000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":189000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":189000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":188000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AssetRetirementObligationForeignCurrencyTranslation":{"label":"Asset Retirement Obligation, Foreign Currency Translation (Deprecated 2016-01-31)","description":"Amount of the Increase or Decrease in the amount of asset retirement obligations for the period associated with foreign currency translation (to the extent that the entity accounts for the foreign currency effects as a separate component of the change in the liability).","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-1000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-1000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"AssetRetirementObligationLegallyRestrictedAssetsFairValue":{"label":"Asset Retirement Obligation, Legally Restricted Assets, Fair Value","description":"Carrying amount of an asset that is legally restricted for purposes of settling an asset retirement obligation.","units":{"USD":[{"end":"2011-12-31","val":151000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":161000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":161000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":158000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":158000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"}]}},"AssetRetirementObligationLiabilitiesIncurred":{"label":"Asset Retirement Obligation, Liabilities Incurred","description":"Amount of asset retirement obligations incurred during the period.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":5000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":5000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":5000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":5000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":9000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":9000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":15000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":45000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":45000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":45000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":45000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":430000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":430000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":429000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":429000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":97000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":97000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":97000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":20000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":20000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":20000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":2000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":18000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":18000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":18000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":16000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":16000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AssetRetirementObligationLiabilitiesSettled":{"label":"Asset Retirement Obligation, Liabilities Settled","description":"Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-91000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-28000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-28000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-38000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-38000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":-49000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2013-01-01","end":"2013-09-30","val":-3000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":61000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":626000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":626000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":626000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":37000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":37000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":37000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"}]}},"AssetRetirementObligationPeriodIncreaseDecrease":{"label":"Asset Retirement Obligation, Period Increase (Decrease)","description":"Amount of increase (decrease) in asset retirement obligations.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-27000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-80000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-80000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2022-01-01","end":"2022-03-31","val":45000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":62000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2024-01-01","end":"2024-03-31","val":256000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-04-01","end":"2024-06-30","val":261000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2"},{"start":"2024-07-01","end":"2024-09-30","val":275000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"}]}},"AssetRetirementObligationRevisionOfEstimate":{"label":"Asset Retirement Obligation, Revision of Estimate","description":"Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":21000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-17000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-17000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":105000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":105000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":105000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":48000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":211000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":211000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":211000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":15000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":-3000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":123000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":123000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":123000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":115000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":65000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":65000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":56000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":56000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-66000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-66000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-66000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-69000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":529000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":529000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":529000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-112000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-112000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-112000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":50000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":50000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-13000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-13000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-13000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":381000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":381000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":381000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":54000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":54000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":54000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":635000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":635000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":101000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"AssetRetirementObligationsNoncurrent":{"label":"Asset Retirement Obligations, Noncurrent","description":"Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"USD":[{"end":"2008-12-31","val":670000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":685000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":685000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":787000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":787000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":787000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-12-31","val":890000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":890000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":890000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1091000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1091000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":1091000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":2069000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2058000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2213000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2213000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":2213000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":2212000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2578000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2578000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2558000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":2555000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2624000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2602000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2599000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":2599000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2395000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2395000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":2398000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2326000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2297000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":2297000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2175000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2175000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":2175000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2204000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2204000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":2204000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2516000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":2516000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":2516000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-12-31","val":2848000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":2848000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":2848000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2816000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":2816000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":2816000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3495000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":3495000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3648000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-03-31","val":23708000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":24624000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2009-06-30","val":24624000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2I"},{"end":"2009-09-30","val":25705000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2009-09-30","val":25705000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3I"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-03-31","val":27113000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2010-03-31","val":27113000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1I"},{"end":"2010-06-30","val":25979000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2010-06-30","val":25979000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2I"},{"end":"2010-09-30","val":27951000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2010-09-30","val":27951000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-03-31","val":31008000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2011-03-31","val":31008000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1I"},{"end":"2011-06-30","val":30579000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2011-06-30","val":30579000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":31708000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":31708000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3I"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":32905000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2012-03-31","val":32905000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1I"},{"end":"2012-06-30","val":33689000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":33689000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":34517000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2012-09-30","val":34517000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":42588000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2013-03-31","val":42588000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":63157000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-30","val":63157000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2I"},{"end":"2013-09-30","val":62598000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":62598000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3I"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":63385000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":63385000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-03-31","val":63843000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-03-31","val":63732000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":64009000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2014-06-30","val":63903000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2I"},{"end":"2014-09-30","val":63976000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2014-09-30","val":63875000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3I"},{"end":"2014-12-31","val":58795000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-03-31","val":56065000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2015-03-31","val":56065000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-03-31","val":56065000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":54008000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2015-06-30","val":54008000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2I"},{"end":"2015-09-30","val":50383000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2015-09-30","val":50383000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3I"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-03-31","val":42664000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":42664000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2016-03-31","val":42664000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1I"},{"end":"2016-06-30","val":41296000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2016-06-30","val":41296000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2I"},{"end":"2016-09-30","val":41400000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2016-09-30","val":41400000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3I"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-03-31","val":36576000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2017-03-31","val":36576000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":37043000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2017-06-30","val":37043000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2I"},{"end":"2017-09-30","val":37327000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2017-09-30","val":37327000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-03-31","val":36637000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2018-03-31","val":36637000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1I"},{"end":"2018-06-30","val":37028000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2018-06-30","val":37028000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2I"},{"end":"2018-09-30","val":37749000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2018-09-30","val":37749000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3I"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-03-31","val":41059000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2019-03-31","val":41059000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":41086000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-06-30","val":41086000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2I"},{"end":"2019-09-30","val":40943000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-09-30","val":40943000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-03-31","val":40219000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2020-03-31","val":40219000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1I"},{"end":"2020-06-30","val":40230000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2020-06-30","val":40230000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2I"},{"end":"2020-09-30","val":41099000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2020-09-30","val":41099000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3I"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":43643000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2021-03-31","val":43643000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":45436000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2021-06-30","val":45436000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":46917000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2021-09-30","val":46917000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-03-31","val":48832000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2022-03-31","val":48832000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1I"},{"end":"2022-06-30","val":50113000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2022-06-30","val":50113000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2I"},{"end":"2022-09-30","val":49927000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2022-09-30","val":49927000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3I"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-03-31","val":50909000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2023-03-31","val":50909000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1I"},{"end":"2023-06-30","val":50907000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2023-06-30","val":50907000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2I"},{"end":"2023-09-30","val":51648000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2023-09-30","val":51648000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3I"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-03-31","val":54198000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2024-03-31","val":54198000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":54635000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2024-06-30","val":54635000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2I"},{"end":"2024-09-30","val":55400000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2024-09-30","val":55400000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3I"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":56022000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":56492000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":56828000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":58167000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AssetsCurrent":{"label":"Assets, Current","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2008-12-31","val":5233000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":5233000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":5233000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":5233000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":5400000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":6336000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":7406000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":7433000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":7433000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":7433000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":7433000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":7433000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":8566000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":7293000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":9078000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":9851000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":9851000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":9851000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":9851000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":9851000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":11146000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":10173000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":10708000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":10047000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":10047000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":10047000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":10047000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":10047000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10252000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10176000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10180000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10297000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":10297000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":10297000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":10297000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":10297000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":16583000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10578000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9606000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":9972000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":9972000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":9972000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":9972000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":9972000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":9430000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10254000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9031000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":9045000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":8854000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":8697000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":8155000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":7462000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7233000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":7233000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10700000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":11505000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10435000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":10435000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":10435000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":10435000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":10435000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":9767000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10417000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11150000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10779000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":10779000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":10689000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":10689000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":10626000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":10106000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":10343000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":10921000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":10720000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":10720000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":10720000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":10720000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":10464000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9045000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":8730000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":8347000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":7915000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":7915000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":7915000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":7915000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":7915000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":7357000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":7155000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":8071000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":9303000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":9303000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":9303000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":9303000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":9303000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":10856000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":12599000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":13791000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":14830000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":14830000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":14830000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":14830000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":14830000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":15302000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":16182000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":15373000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":15613000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":15613000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":15613000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":15613000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":15613000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":14746000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":14057000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":14077000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":14065000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":14065000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":14065000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":14065000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":14065000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":14842000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":14722000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":14545000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":13296000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":13296000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":13296000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":13296000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":13296000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":13802000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":13636000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":13564000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":13790000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AssetsHeldInTrustNoncurrent":{"label":"Assets Held-in-trust, Noncurrent","description":"The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.","units":{"USD":[{"end":"2008-12-31","val":142000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q4I"},{"end":"2008-12-31","val":142000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":142000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2009-03-31","val":139000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":145000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":140000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2011-12-31","val":152000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":163000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperation":{"label":"Disposal Group, Including Discontinued Operation, Assets","description":"Amount classified as assets attributable to disposal group held for sale or disposed of.","units":{"USD":[{"end":"2013-12-31","val":4600000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4800000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-06-30","val":4900000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2I"},{"end":"2015-12-31","val":4900000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4900000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2016-03-31","val":5300000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4700000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2016-06-30","val":5100000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2I"},{"end":"2016-09-30","val":5100000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3I"},{"end":"2017-03-31","val":408000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":463000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":549000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"}]}},"AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent":{"label":"Disposal Group, Including Discontinued Operation, Assets, Current","description":"Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":846000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-09-30","val":4868000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3I"},{"end":"2015-12-31","val":744000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":744000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":744000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":744000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":920000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":763000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4666000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4663000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":344000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":344000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":344000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":344000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":344000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":408000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2017-03-31","val":408000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":463000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2017-06-30","val":373000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2I"},{"end":"2017-09-30","val":549000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2017-09-30","val":459000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":598000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":598000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":508000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":508000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2018-03-31","val":708000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":625000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":626000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"AvailableForSaleSecuritiesNoncurrent":{"label":"Available-for-sale Securities, Noncurrent","description":"Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.","units":{"USD":[{"end":"2009-12-31","val":62000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":28000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":28000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":9000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":9000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":46000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":46000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":44000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":44000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":46000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":46000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":46000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":47000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":47000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":47000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":50000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":50000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":30000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":30000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":29000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":65000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":66000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":66000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":70000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"}]}},"BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued":{"label":"Business Acquisition, Equity Interest Issued or Issuable, Number of Shares","description":"Number of shares of equity interests issued or issuable to acquire entity.","units":{"shares":[{"start":"2013-04-01","end":"2013-06-30","val":91000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":91000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q2"}]}},"BusinessAcquisitionProFormaEarningsPerShareBasic":{"label":"Business Acquisition, Pro Forma Earnings Per Share, Basic","description":"The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD/shares":[{"start":"2012-01-01","end":"2012-06-30","val":1.75,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1.2,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2.3,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.55,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3.17,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3.17,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.7,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.42,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.65,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2.13,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2.71,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.71,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.71,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2.71,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"BusinessAcquisitionProFormaEarningsPerShareDiluted":{"label":"Business Acquisition, Pro Forma Earnings Per Share, Diluted","description":"The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD/shares":[{"start":"2012-01-01","end":"2012-06-30","val":1.75,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1.19,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2.29,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.55,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3.16,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3.16,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.7,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.42,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.65,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2.12,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2.7,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.7,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.7,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2.7,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet":{"label":"Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net (Deprecated 2013-01-31)","description":"The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.","units":{"USD":[{"end":"2007-03-31","val":25800000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q1I"}]}},"BusinessAcquisitionPurchasePriceAllocationGoodwillAmount":{"label":"Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)","description":"Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.","units":{"USD":[{"end":"2007-03-31","val":6200000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q1I"}]}},"BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax":{"label":"Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax","description":"Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":2263000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1440000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3161000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":898000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":4277000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":4277000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":913000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1803000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":818000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2762000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1048000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3626000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3626000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3626000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3626000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"BusinessAcquisitionsProFormaNetIncomeLoss":{"label":"Business Acquisition, Pro Forma Net Income (Loss)","description":"The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":1824000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1247000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2397000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":573000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3301000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3301000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":728000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1481000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":681000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2213000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2825000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2825000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2825000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2825000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"BusinessAcquisitionsProFormaRevenue":{"label":"Business Acquisition, Pro Forma Revenue","description":"The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":11549000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":5842000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":16955000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":5406000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":22713000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":22713000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5695000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":11025000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":5330000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":17190000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":6165000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":23075000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":23075000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":23075000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":23075000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"BusinessCombinationAcquisitionRelatedCosts":{"label":"Business Combination, Acquisition Related Costs","description":"This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":9000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":14000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":14000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":506000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":61000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":61000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":519000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":80000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":80000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":4000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"}]}},"BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1":{"label":"Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset","description":"Amount of increase (decrease) in the value of right to a contingent consideration asset.","units":{"USD":[{"start":"2017-01-01","end":"2017-06-30","val":26000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":6000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"}]}},"BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh":{"label":"Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High","description":"For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":196000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":196000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":234000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":234000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":189000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":189000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":115000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":115000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":96000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets","description":"Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":1106000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":1290000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":1291000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":1291000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":1291000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":1291000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities","description":"Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities","description":"Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":1089000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":1081000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":-1080000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":1080000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":1080000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":1080000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilitiesNoncurrent":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent","description":"Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent.","units":{"USD":[{"end":"2013-06-03","val":3871000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":3956000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":-3916000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":3917000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":3917000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":3917000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net","description":"Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.","units":{"USD":[{"end":"2013-06-03","val":7010000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":6982000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":7003000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":6981000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":6981000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":6981000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt","description":"Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":11250000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":11251000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":-11251000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":11251000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":11251000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":11251000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other","description":"Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":1126000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":1063000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":-1061000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":1061000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":1061000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":1061000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets","description":"Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":411000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":433000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":435000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":394000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":394000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":394000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment":{"label":"Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment","description":"The amount of property, plant, and equipment recognized as of the acquisition date.","units":{"USD":[{"end":"2013-06-03","val":262000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":262000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":262000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":262000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":262000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":262000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet":{"label":"Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net","description":"Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.","units":{"USD":[{"end":"2013-06-03","val":8914000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":8914000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-12-31","val":8919000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":8919000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":8919000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":8919000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"}]}},"BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain":{"label":"Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain","description":"In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":128000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":128000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":128000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":128000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":128000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":128000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":128000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":128000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":128000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities":{"label":"Capitalized Costs, Accumulated Depreciation, Depletion, Amortization and Valuation Allowance Relating to Oil and Gas Producing Activities","description":"Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities.","units":{"USD":[{"end":"2013-12-31","val":1357000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1357000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":1357000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1357000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":7360000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":7360000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":7360000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":7360000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":22276000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":22276000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":22276000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":22276000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":27433000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":27433000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":27433000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortization":{"label":"Capitalized Costs of Unproved Properties Excluded from Amortization, Period Cost","description":"The sum of the capitalized costs incurred during the period of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":8066000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3078000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3078000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2021000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1452000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1452000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":301000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":301000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative":{"label":"Capitalized Costs of Unproved Properties Excluded from Amortization, Cumulative","description":"The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.","units":{"USD":[{"end":"2013-12-31","val":10887000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":10087000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4831000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4831000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"CapitalizedCostsOilAndGasProducingActivitiesGross":{"label":"Capitalized Costs, Oil and Gas Producing Activities, Gross","description":"The sum of capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation.","units":{"USD":[{"end":"2013-12-31","val":13829000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":13829000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":13829000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":13829000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":16547000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":16547000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":16547000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":16547000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":24538000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":24538000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":24538000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":24538000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":27507000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":27507000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":27507000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"CapitalizedCostsOilAndGasProducingActivitiesNet":{"label":"Capitalized Costs, Oil and Gas Producing Activities, Net","description":"Net amount of capitalized costs relating to oil and gas producing activities.","units":{"USD":[{"end":"2013-12-31","val":12472000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":12472000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":12472000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":12472000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9187000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":9187000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":9187000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":9187000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2262000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2262000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2262000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":2262000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":74000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":74000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":74000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"CapitalUnitsAuthorized":{"label":"Capital Units, Authorized","description":"Number of authorized capital units or capital shares. This element is relevant to issuers of face-amount certificates and registered investment companies.","units":{"shares":[{"end":"2012-12-31","val":1850000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1850000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1850000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1850000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1850000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3050000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3050000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3050000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3050000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3050000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3050000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3050000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3050000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"}]}},"CashAndCashEquivalentsAtCarryingValue":{"label":"Cash and Cash Equivalents, at Carrying Value","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.","units":{"USD":[{"end":"2006-12-31","val":907000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2006Q4I"},{"end":"2007-12-31","val":1626000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2007-12-31","val":1626000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2007-12-31","val":1626000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2007-12-31","val":1626000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-01-01","val":1626000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-03-31","val":1831000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1I"},{"end":"2008-06-30","val":1648000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2I"},{"end":"2008-09-30","val":1202000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3I"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":872000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-03-31","val":644000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2009-03-31","val":644000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1I"},{"end":"2009-06-30","val":1319000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2009-06-30","val":1319000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2I"},{"end":"2009-09-30","val":2269000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2009-09-30","val":2269000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3I"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":2656000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2009-12-31","val":3738000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2009Q4I"},{"end":"2010-03-31","val":3752000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2010-03-31","val":3752000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1I"},{"end":"2010-06-30","val":3042000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2010-06-30","val":3042000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2I"},{"end":"2010-09-30","val":3720000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2010-09-30","val":3720000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2010-12-31","val":3738000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":4822000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":4090000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2011-03-31","val":4090000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1I"},{"end":"2011-06-30","val":4378000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2011-06-30","val":4378000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":5128000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":5128000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":4822000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4496000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2012-03-31","val":4496000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4508000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":4508000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3727000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2012-09-30","val":3727000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":3705000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":3569000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-03-31","val":9595000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2013-03-31","val":9595000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3294000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-30","val":3294000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2219000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":2219000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2013-12-31","val":1985000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1908000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2013-12-31","val":1864000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1342000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2014-03-31","val":1342000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1458000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2014-06-30","val":1458000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2I"},{"end":"2014-09-30","val":658000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2014-09-30","val":658000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3I"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":464000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2014-12-31","val":317000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2014-12-31","val":317000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":317000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":317000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2014-12-31","val":298000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":298000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-03-31","val":549000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2015-03-31","val":549000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-03-31","val":340000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1I"},{"end":"2015-06-30","val":466000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2015-06-30","val":318000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2I"},{"end":"2015-09-30","val":338000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2015-09-30","val":233000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3I"},{"end":"2015-12-31","val":224000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":224000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":195000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":195000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":195000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":195000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":177000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":177000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2015-12-31","val":177000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2015-12-31","val":177000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2015-12-31","val":177000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-03-31","val":331000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":252000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2016-03-31","val":231000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1I"},{"end":"2016-06-30","val":352000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2016-06-30","val":330000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1108000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2016-09-30","val":1086000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4245000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":4245000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":4245000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":4245000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":4245000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4001000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4667000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4957000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":4447000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":4447000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":4447000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":4447000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":4526000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3702000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3859000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":4556000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4217000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":4217000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":4217000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":4217000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":4217000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2833000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2623000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2247000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2020000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2020000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":2020000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":2020000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":2020000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":1602000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":1465000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":2403000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":3657000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":3657000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":3657000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":3657000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":3657000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":4580000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":6313000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":7672000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":8068000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":8068000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":8068000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":8068000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":8068000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":8338000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":9492000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":8578000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":8146000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":8146000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":8146000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":8146000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":8146000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":6852000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":6683000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":5745000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":4758000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":4758000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":4758000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":4758000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":4758000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":5208000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":5273000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":5000000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":3923000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":3923000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":3923000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":3923000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":3923000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4385000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":4490000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":4318000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":3824000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CashAndCashEquivalentsPeriodIncreaseDecrease":{"label":"Cash and Cash Equivalents, Period Increase (Decrease)","description":"Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":719000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":205000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":22000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-424000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-754000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-754000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-228000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-228000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":447000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":447000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":1397000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":1397000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":1784000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":1784000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":1784000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":1096000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1096000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":386000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":386000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":1064000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":1064000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":1082000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":1082000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1082000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":352000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":352000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":640000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":640000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":1390000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1390000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":1084000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1084000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1084000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-326000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-326000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-314000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-314000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":-1095000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-1095000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-1117000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-1117000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-1117000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5890000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":5890000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-411000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-411000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-1486000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-1486000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-1720000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1720000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1720000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1720000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-643000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-643000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-527000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-527000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-1327000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-1327000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-1521000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1521000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1521000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1521000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":85000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":85000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":85000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-126000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-126000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-240000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-240000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-240000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-240000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":107000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":107000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":107000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":206000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":206000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":952000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":952000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":4113000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":4113000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":4124000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-252000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":415000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":757000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-12-31","val":264000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":290000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2015-12-31","val":341000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":4403000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2016-12-31","val":4403000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2016-12-31","val":4403000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2016-12-31","val":4420000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2016-12-31","val":4420000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4163000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4832000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5129000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":4631000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":4631000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":4631000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2017-12-31","val":4710000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3952000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2018-03-31","val":3999000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4106000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2018-06-30","val":4141000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2I"},{"end":"2018-09-30","val":4799000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2018-09-30","val":4823000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2018-12-31","val":4455000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3112000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2019-03-31","val":3112000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3006000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-06-30","val":3006000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2512000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-09-30","val":2512000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2019-12-31","val":2278000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2019Q4I"},{"end":"2020-03-31","val":1867000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2020-03-31","val":1867000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1I"},{"end":"2020-06-30","val":1729000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2020-06-30","val":1729000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2I"},{"end":"2020-09-30","val":2655000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2020-09-30","val":2655000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3I"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2020-12-31","val":3903000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2020Q4I"},{"end":"2021-03-31","val":4835000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2021-03-31","val":4835000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":6569000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2021-06-30","val":6569000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":7919000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2021-09-30","val":7919000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2021-12-31","val":8314000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2021Q4I"},{"end":"2022-03-31","val":8588000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2022-03-31","val":8588000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1I"},{"end":"2022-06-30","val":9745000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2022-06-30","val":9745000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2I"},{"end":"2022-09-30","val":8824000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2022-09-30","val":8824000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3I"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2022-12-31","val":8390000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2022Q4I"},{"end":"2023-03-31","val":7104000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2023-03-31","val":7104000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1I"},{"end":"2023-06-30","val":6936000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2023-06-30","val":6936000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2I"},{"end":"2023-09-30","val":6539000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2023-09-30","val":6539000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3I"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2023-12-31","val":6063000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-03-31","val":6340000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2024-03-31","val":6340000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":6402000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2024-06-30","val":6402000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2I"},{"end":"2024-09-30","val":6216000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2024-09-30","val":6216000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3I"},{"end":"2024-12-31","val":4911000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":4911000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":4911000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":4911000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":4911000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4948000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":4824000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":4653000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":4173000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect","description":"Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"start":"2017-01-01","end":"2017-03-31","val":-248000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":422000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":771000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":290000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-711000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-711000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-569000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-569000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":113000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":113000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-255000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-255000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-1343000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-1449000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":-1943000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-2177000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect","description":"Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":4124000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-248000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":422000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":771000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":290000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":290000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-711000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-711000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-569000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-569000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":113000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":113000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-255000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-255000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-255000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-1343000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-1343000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-1449000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-1449000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-1943000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-1943000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-2177000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-2177000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-2177000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-411000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-411000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-549000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-549000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":377000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":377000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":1625000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1625000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1625000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":932000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":932000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":2666000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":2666000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":4016000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":4016000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":4411000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4411000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4411000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":274000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":274000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1431000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1431000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":510000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":510000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":76000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":76000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":76000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-1286000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-1286000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-1454000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-1454000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-1851000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-1851000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-2327000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-2327000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-2327000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":277000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":277000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":339000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":339000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":153000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":153000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":-1152000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-1152000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":37000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-87000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-258000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":-738000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CashDividendsPaidToParentCompany":{"label":"SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Subsidiaries and Equity Method Investees","description":"This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method.","units":{"USD":[{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"}]}},"CashDividendsPaidToParentCompanyByConsolidatedSubsidiaries":{"label":"SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries","description":"This element represents disclosure of the aggregate cash dividends paid to the entity by consolidated subsidiaries.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"}]}},"CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Financing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-285000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-82000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-82000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-123000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-123000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-123000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-174000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-253000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-253000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-73000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-73000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-73000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":529000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":217000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":217000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":241000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":241000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":241000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CommonStockDividendsPerShareCashPaid":{"label":"Common Stock, Dividends, Per Share, Cash Paid","description":"Aggregate dividends paid during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2011-04-01","end":"2011-06-30","val":0.5,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2015-07-15","end":"2015-08-04","val":0.1105,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-07-15","end":"2015-08-04","val":0.1105,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q2I"}]}},"CommonStockDividendsPerShareDeclared":{"label":"Common Stock, Dividends, Per Share, Declared","description":"Aggregate dividends declared during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":1.375,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":0.4375,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":0.875,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":0.4375,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":1.375,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":0.5,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":1.375,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":0.6875,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":0.075,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.075,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":0.15,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":0.15,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":0.075,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0.45,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":0.225,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":0.3,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0.15,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.75,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":0.375,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.3,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0.15,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1.125,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":1.125,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1.125,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":0.25,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":0.25,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":1,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.75,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":0.75,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":1.25,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1.25,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0.25,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.25,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1.5,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1.5,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1.5,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-02-01","end":"2012-02-29","val":1.25,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2012-02-01","end":"2012-02-29","val":1.25,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2012Q1I"},{"start":"2012-01-01","end":"2012-03-31","val":0.3125,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":0.3125,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.625,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":0.625,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0.3125,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.3125,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.9375,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":0.9375,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.3125,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.3125,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.3125,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":0.3125,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.625,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1.625,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":1.3125,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1.3125,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1.9375,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1.9375,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0.3125,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.3125,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2.25,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.25,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.25,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2.25,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.3125,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.3125,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.625,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0.625,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0.3125,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0.3125,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.9375,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0.9375,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0.3125,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0.3125,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1.25,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1.25,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1.25,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1.25,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.05,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0.05,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0.05,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":0.2,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-03-31","val":0.2,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.2105,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0.2105,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0.1605,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0.1605,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.2605,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0.2605,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.05,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0.05,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.2605,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.2605,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.2605,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.2605,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.05,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0.05,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"end":"2018-06-27","val":0.05,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"start":"2018-01-01","end":"2018-06-30","val":0.1,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":0.1,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.05,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"end":"2018-09-26","val":0.05,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"start":"2018-01-01","end":"2018-09-30","val":0.15,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.05,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.05,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":0.2,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.2,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.2,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"end":"2019-03-27","val":0.05,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"start":"2019-01-01","end":"2019-03-31","val":0.05,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0.05,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"end":"2019-06-26","val":0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"start":"2019-01-01","end":"2019-06-30","val":0.1,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":0.1,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0.05,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"end":"2019-09-25","val":0.05,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"start":"2019-01-01","end":"2019-09-30","val":0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":0.15,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0.05,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0.05,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"end":"2019-12-18","val":0.05,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"start":"2019-01-01","end":"2019-12-31","val":0.2,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.2,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.2,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0.075,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0.075,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0.15,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":0.15,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.075,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.075,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"end":"2021-09-22","val":0.075,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"start":"2021-01-01","end":"2021-09-30","val":0.225,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":0.225,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0.075,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0.075,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"end":"2021-12-22","val":0.15,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"start":"2021-01-01","end":"2021-12-31","val":0.375,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.375,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.375,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"end":"2022-03-23","val":0.15,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"start":"2022-01-01","end":"2022-03-31","val":0.15,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":0.15,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"end":"2022-06-22","val":0.15,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"start":"2022-01-01","end":"2022-06-30","val":0.3,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":0.3,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":0.15,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":0.15,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"end":"2022-09-21","val":0.15,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2022-09-21","val":0.15,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q3I"},{"start":"2022-01-01","end":"2022-09-30","val":0.45,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":0.45,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0.15,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0.15,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"end":"2022-12-21","val":0.15,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-21","val":0.15,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"start":"2022-01-01","end":"2022-12-31","val":0.6,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0.6,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0.6,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":0.15,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":0.15,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"end":"2023-06-21","val":0.15,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"start":"2023-01-01","end":"2023-06-30","val":0.3,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":0.3,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":0.15,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0.15,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"end":"2023-09-20","val":0.15,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"start":"2023-01-01","end":"2023-09-30","val":0.45,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":0.45,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":0.15,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0.15,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":0.6,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.6,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0.6,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"end":"2024-03-27","val":0.15,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"start":"2024-01-01","end":"2024-03-31","val":0.15,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0.15,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"end":"2024-06-26","val":0.15,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"start":"2024-01-01","end":"2024-06-30","val":0.3,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":0.3,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0.15,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0.15,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":0.45,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":0.45,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":0.15,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":0.15,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":0.6,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0.6,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2024-10-01","end":"2024-12-31","val":0.15,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4"},{"start":"2025-01-01","end":"2025-03-31","val":0.15,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0.3,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":0.15,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":0.45,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":0.15,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":0.6,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"},{"start":"2025-10-01","end":"2025-12-31","val":0.15,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4"}]}},"CommonStockParOrStatedValuePerShare":{"label":"Common Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of common stock.","units":{"USD/shares":[{"end":"2008-12-31","val":0.1,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-12-31","val":0.1,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":0.1,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":0.1,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":0.1,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0.1,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":0.1,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0.1,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":0.1,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0.1,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":0.1,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.1,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":0.1,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":0.1,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0.1,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0.1,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":0.1,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0.1,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":0.1,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0.1,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":0.1,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0.1,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":0.1,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":0.1,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":0.1,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0.1,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":0.1,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0.1,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":0.1,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0.1,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":0.1,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0.1,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":0.1,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0.1,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":0.1,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0.1,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CommonStockSharesAuthorized":{"label":"Common Stock, Shares Authorized","description":"The maximum number of common shares permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2008-12-31","val":1800000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":1800000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2012-12-31","val":1800000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1800000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1800000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1800000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1800000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3000000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3000000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3000000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3000000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":3000000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":3000000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3000000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3000000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3000000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3000000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2008-12-31","val":505000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-12-31","val":552000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":981000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1067000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1067000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1071000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1071000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1073000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1073000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1165000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1165000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1167000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1167000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1167000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1374000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1374000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1374000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1574000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1574000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1578000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1578000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1579000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1579000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1582000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1582000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1590000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1590000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1603000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1603000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1613000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1613000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1619000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1619000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1624000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1624000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1627000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2010-12-31","val":945000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":945000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2008-12-31","val":51000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":51000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":51000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":51000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":53000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":53000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":55000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":55000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":55000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":55000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":55000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":98000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":55000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":59000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":59000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":107000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":107000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":107000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":107000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":107000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":107000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":107000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":107000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":107000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":107000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":107000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":107000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":107000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":107000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":107000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":107000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":107000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":117000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":117000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":117000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":117000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":117000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":117000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":117000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":117000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":117000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":117000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":117000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":117000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":117000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":127000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":137000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":138000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":138000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":145000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":149000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":157000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":157000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":157000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":157000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":157000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":158000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":158000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":158000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":158000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":158000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":158000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":158000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":158000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":158000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":158000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":158000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":158000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":158000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":158000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":158000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":158000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":158000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":158000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":158000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":158000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":158000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":158000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":159000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":159000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":159000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":159000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":159000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":160000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":160000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":160000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":160000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":160000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":160000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":160000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":160000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":161000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":161000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":161000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":162000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":162000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":162000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":162000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":162000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":162000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":162000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":162000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":162000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":162000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":162000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":162000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":162000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":162000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":162000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":162000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":163000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":163000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":163000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":163000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Parent","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2009-01-01","end":"2009-03-31","val":275000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":825000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":654000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":1811000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":986000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":948000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":1614000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1600000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":666000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":666000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2797000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2800000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1183000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1200000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":4286000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1504000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1504000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2900000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":2874000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1400000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1370000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":3900000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":3929000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1100000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1055000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":4418000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":4418000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":776000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":776000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1491000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1491000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":715000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":715000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2324000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":2324000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":833000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":833000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3000000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3000000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3000000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":654000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":654000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1141000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1141000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":487000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":487000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1973000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1973000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":832000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":832000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2759000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2759000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2759000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2759000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":513000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":513000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":996000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":996000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":483000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":483000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1555000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1555000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":559000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":559000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1447000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1447000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1447000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1447000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2462000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2462000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2462000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4304000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4304000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1842000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1842000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-8120000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-8120000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3816000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3816000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12195000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-12195000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12195000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12195000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4648000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4648000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-464000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-464000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4419000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4419000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":229000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":229000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-4199000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-4199000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-4199000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":239000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":239000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":588000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":588000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":349000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":349000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":881000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":881000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":293000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":293000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1878000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1878000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1878000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":704000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":704000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1584000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1584000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":880000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":880000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2151000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2151000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":567000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":567000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2569000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2569000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2569000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":42000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":42000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-18000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-18000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-60000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-60000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-213000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-213000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-195000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-195000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-310000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-310000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-310000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-483000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-483000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-414000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-414000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":69000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":69000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-161000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-161000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":253000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":253000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":692000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":692000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":692000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":721000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":721000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1808000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1808000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1087000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1087000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":3211000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":3211000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1403000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1403000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":4501000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4501000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4501000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1528000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1528000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2369000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2369000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":841000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":841000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2774000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2774000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":405000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":405000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":3536000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":3536000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":3536000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":664000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":664000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1008000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1008000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":344000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":344000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1463000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1463000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":455000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":455000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1894000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1894000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1894000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":473000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":473000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1089000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1089000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":616000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":616000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1616000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1616000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":527000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":527000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":1849000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1849000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":353000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1127000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":774000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1802000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":675000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2213000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":1206000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":362000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":720000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":358000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":961000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":241000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1184000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1184000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":422000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":422000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":185000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":185000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":737000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":737000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":315000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":315000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":938000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":938000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":938000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":176000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":176000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":304000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":301000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":128000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":125000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":530000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":518000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":226000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":217000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":780000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":758000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":758000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":758000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":274000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":274000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":168000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":168000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":416000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":416000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":142000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":142000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":521000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":521000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":521000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":521000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":58000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":58000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":58000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":42000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":42000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":130000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":130000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":30000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":30000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":71000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":71000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":71000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":130000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":130000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":59000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":59000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":189000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":189000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":59000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":59000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":292000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":292000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":292000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":78000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":78000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":153000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":153000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":75000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":75000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":118000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":118000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":-35000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-35000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":286000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":286000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":286000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":124000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":124000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":290000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":290000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":109000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":109000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":291000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":291000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":291000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":44000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":44000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-28000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-28000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":53000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":53000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":53000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-59000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-59000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":12000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":12000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":71000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":71000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":115000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":115000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":103000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":103000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":263000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":263000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":263000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":234000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":234000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":482000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":482000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":248000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":248000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":806000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":806000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":324000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":324000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":1060000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1060000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1060000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":377000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":377000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":575000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":575000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":198000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":198000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":731000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":731000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":156000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":156000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":387000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":387000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":775000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":775000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":388000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":388000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1284000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1284000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":509000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":509000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1901000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1901000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1901000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":689000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":689000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1353000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1353000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":664000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":664000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":2063000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":2063000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":710000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":710000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":2508000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2508000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":441000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1216000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":775000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1789000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":573000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":1945000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest":{"label":"Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":3843000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-10796000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-10796000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":1093000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":2303000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":3567000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3567000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":3567000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":1218000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":2052000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":3590000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":5492000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":5492000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":5492000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":1866000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1866000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":3594000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":3594000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1728000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":4890000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4890000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1296000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":5602000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":5602000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":5602000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":1013000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":1013000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1913000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1913000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":900000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":900000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3061000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":3061000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1148000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1148000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3938000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3938000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3938000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":830000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":830000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1445000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1445000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":615000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":615000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2503000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":2503000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1058000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1058000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3539000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3539000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3539000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3539000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":629000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":629000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1290000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1290000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":661000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":661000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2001000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":2001000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":711000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":711000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-886000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-886000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-886000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-886000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2394000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2394000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2394000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4184000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4184000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1790000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1790000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-7959000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-7959000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3775000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3775000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12048000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-12048000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12048000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12048000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-4102000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4102000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4102000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4497000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4497000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-395000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-395000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4199000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4199000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":298000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":298000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-4068000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-4068000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-4068000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":317000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":317000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":741000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":741000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":424000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":424000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":999000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":999000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":258000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":258000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2164000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2164000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2164000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1874000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1874000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1046000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1046000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2550000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2550000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":676000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":676000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2860000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2860000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2860000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":87000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":87000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-61000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-61000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-197000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-197000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-223000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-223000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-257000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-257000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-257000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-542000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-542000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-402000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-402000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":140000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":140000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-46000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-46000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":356000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":356000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":955000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":955000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":955000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":955000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":955000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":2290000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":2290000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1335000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1335000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":4017000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":4017000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1727000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1727000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":5561000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5561000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5561000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1905000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1905000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2944000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2944000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1039000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1039000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":3505000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":3505000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":561000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":561000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":4547000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4547000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":4547000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1051000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1051000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1783000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1783000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":732000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":732000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":2747000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":2747000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":3795000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":3795000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3795000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":3679000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":3679000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1237000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1237000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":4357000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":4357000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":794000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2343000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1549000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":3591000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1248000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":4158000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ContractWithCustomerLiability":{"label":"Contract with Customer, Liability","description":"Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.","units":{"USD":[{"end":"2019-12-31","val":12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":65000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":65000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":191000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":191000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":76000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":76000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":161000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":161000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":91000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":91000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":106000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ContributionsFromNoncontrollingInterests":{"label":"Contributions from Noncontrolling Interests (Deprecated 2013-01-31)","description":"Amount of cash inflow from contributions from noncontrolling interests in an investment.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":28000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":62000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":15000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"CostDepreciationAmortizationAndDepletion":{"label":"Cost, Depreciation, Amortization and Depletion","description":"Amount of expense for allocation of cost of tangible and intangible assets over their useful lives, and reduction in quantity of natural resource due to consumption directly used in production of good and rendering of service.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":2530000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-09-30","val":1257000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":418000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":451000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":893000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":442000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1351000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1351000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":458000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":458000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":347000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":347000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":699000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":699000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":352000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":352000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1021000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1021000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":322000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":322000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":341000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":341000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":699000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":699000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":358000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":358000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":1093000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1093000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":394000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":394000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":419000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":419000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":902000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":902000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":483000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":483000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":1430000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1430000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":528000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":528000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":489000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":489000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":996000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":996000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":507000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":507000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1504000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1504000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":508000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":508000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":399000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":399000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":946000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":946000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":547000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":547000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1479000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1479000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":533000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":533000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":595000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":595000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1104000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1104000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":509000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":509000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1704000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1704000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":600000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":600000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":2241000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2241000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":466000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1134000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":668000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1759000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":625000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2244000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization":{"label":"Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization","description":"Cost of product sold and service rendered, excluding depreciation, depletion, and amortization.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":10258000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":5723000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":2915000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":8790000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":3069000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":11687000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":11708000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2919000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":5978000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":5929000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3002000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3005000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":8584000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":8599000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":2665000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":2670000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":11514000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":11534000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":11534000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":2545000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":2545000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":4939000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":4939000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":2394000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":2394000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":7404000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":7404000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":2465000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":2465000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":2786000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":2787000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":5853000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":5853000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3067000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3067000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":8862000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":8862000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":3009000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":3009000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":12016000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":12016000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":12032000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":3150000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":3150000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":6153000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":6153000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":3003000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":3003000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":9519000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":9519000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":3366000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":3366000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":13041000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":13070000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":13070000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":3165000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":3165000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":6712000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":6714000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":3548000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":3549000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":10260000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":10267000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":3548000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":3553000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":13627000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":13627000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":3844000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":3844000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":7719000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":7719000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":3875000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":3875000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":11796000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":11796000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":4077000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":4077000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":15554000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":3756000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":8038000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":4282000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":12243000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":4205000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"CostOfGoodsSold":{"label":"Cost of Goods Sold (Deprecated 2018-01-31)","description":"Total costs related to goods produced and sold during the reporting period.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":12980000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":8049000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":8020000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":2189000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":4488000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":2301000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":7022000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2534000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":9390000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":9371000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9371000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":2609000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2609000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5433000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":5433000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":2824000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":2824000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":8260000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":8260000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2827000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2827000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":10920000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":10920000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":10920000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":2695000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":2695000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5608000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":5608000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":2913000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":2913000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":8498000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":8498000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2890000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":2890000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":11561000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":11561000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":11561000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3048000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":3048000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":6431000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":6431000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":3383000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":3383000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":10682000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":10682000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":4251000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":4251000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":14637000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":14637000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":14637000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":13632000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3703000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":3703000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":7798000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":7798000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":4095000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":4095000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":12203000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":12203000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":4405000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":4405000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":19504000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":19504000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":18494000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6955000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":6955000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":6649000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":13379000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":12819000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":6424000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":6170000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":20812000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":19980000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":7433000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":7161000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":28524000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":27415000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":7234000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":6948000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10827000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":3879000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":14238000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3411000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"CostOfGoodsSoldDepreciationDepletionAndAmortization":{"label":"Cost of Goods Sold, Depreciation, Depletion and Amortization (Deprecated 2018-01-31)","description":"Aggregate depreciation, depletion and amortization expense in the current period for the cost of tangible assets, intangible assets, or depleting assets directly related to goods produced and sold during the reporting period.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":1782000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":1014000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":1014000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":271000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":520000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":249000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":788000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":268000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1036000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":1036000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1036000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":232000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":232000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":499000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":499000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":267000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":267000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":756000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":756000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":257000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":257000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1022000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1022000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1022000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":267000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":267000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":558000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":558000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":291000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":291000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":856000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":856000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":298000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":298000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1179000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1179000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1179000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":329000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":329000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":859000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":859000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":530000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":530000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1778000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1778000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":919000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":919000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2797000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2797000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2797000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2551000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":966000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":966000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1979000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1979000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1013000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1013000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":2924000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":2924000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":945000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":945000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":3863000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":3863000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3635000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":3635000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":939000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":939000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":866000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1829000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1699000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":890000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":833000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2717000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2522000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":888000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":823000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":3497000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3240000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3240000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3240000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":722000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":662000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":662000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1294000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1294000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":632000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":632000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1937000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1937000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":643000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":643000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2530000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":2530000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":389000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":389000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":839000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":839000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":450000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":450000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1257000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":418000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":451000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":893000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":442000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"}]}},"CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization":{"label":"Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization (Deprecated 2019-01-31)","description":"The aggregate cost of goods produced and sold during the reporting period, excluding depreciation, depletion, and amortization.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":10687000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-09-30","val":7462000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":2794000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":10266000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2808000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-09-30","val":8792000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":3069000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":11691000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2919000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"}]}},"CostOfRevenue":{"label":"Cost of Revenue","description":"The aggregate cost of goods produced and sold and services rendered during the reporting period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":9773000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":3140000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":6322000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":3182000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":9638000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":3316000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":12980000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":1813000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":1813000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":3878000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":3878000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":2065000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":2065000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":5845000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":5845000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1967000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":1967000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2009-01-01","end":"2009-12-31","val":8049000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":2189000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":4490000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":2301000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":7027000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":2537000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2014-01-01","end":"2014-12-31","val":18494000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":27415000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":27415000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":6948000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10827000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":3879000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":14238000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":3411000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":17580000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":17580000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":17534000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":2589000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":2577000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":5534000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":5507000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":2945000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":2930000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":8754000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":8719000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3220000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3212000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":12022000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":11980000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":11980000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3259000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":3259000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":6616000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":6616000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":3357000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":3357000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":10143000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":10143000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":3527000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":3527000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":13445000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":13445000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":13466000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":3323000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3323000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":6677000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":6687000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3354000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3359000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":9705000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":9720000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3028000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3033000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":13105000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":13125000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":13125000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":3108000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":3108000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":5721000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":5721000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":2613000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":2613000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":8589000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":8589000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":2868000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":2868000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":11655000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":11655000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":11655000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":3206000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":3206000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":6756000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":6756000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3550000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3550000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":10307000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":10307000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":3551000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":3551000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":14030000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14030000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14030000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":3639000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":3639000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":7167000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":7167000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":3528000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":3528000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":11066000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":11066000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":3899000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":3899000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":15089000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":15089000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":15089000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":3564000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":3564000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":7660000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":7660000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":4096000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":4096000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":11746000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":11746000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":4086000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":4086000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":15695000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":15695000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":15695000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":4439000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":4439000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":8823000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":8823000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":4384000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":4384000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":13500000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":13500000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":4677000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":4677000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":17795000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":17795000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":4222000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":9172000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":4950000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":14002000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":4830000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":18618000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CostsAndExpenses":{"label":"Costs and Expenses","description":"Total costs of sales and operating expenses for the period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":10384000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":6664000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":3388000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":10147000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":3483000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":30506000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":30506000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":1930000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":4106000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":4106000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":2176000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":2176000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":6166000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":6166000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":2060000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":2060000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":8537000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":8537000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":8537000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":2315000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":2315000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":4755000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":4755000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":2440000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":2440000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":7408000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":7408000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2653000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":2653000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":9914000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":9914000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9914000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":2773000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2773000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5830000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":5830000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":3057000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":3057000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":8875000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":8875000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":3045000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":3045000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":11740000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":11740000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":11740000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":2871000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":2871000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":6035000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":6035000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":3164000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":3164000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":9041000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":9041000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":3006000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":3006000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":12196000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":12196000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":12196000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3228000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":3228000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":6877000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":6877000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":3649000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":3649000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":11335000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":11335000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":4458000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":4458000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":15570000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":15570000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":15570000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":14511000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3874000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":3874000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8243000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":8243000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":4369000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":4369000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":12807000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":12807000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":4564000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":4564000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":21341000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":21341000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":20299000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":20299000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7116000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":7116000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":6801000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":13738000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":13160000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":6622000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":6359000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":21364000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":20506000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":7626000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":7346000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":29259000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":28119000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":28119000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":28119000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":7403000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":7114000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":7114000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10430000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":10430000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":3316000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":3316000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":13948000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":13948000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":3518000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3518000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":17622000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":17622000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":17559000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":2761000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":2744000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":5803000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":5769000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":3042000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":3025000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":9196000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":9151000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3393000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3382000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":12770000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":12713000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":12713000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3409000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":3409000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":6913000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":6913000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":3504000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":3504000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":10506000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":10506000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":3593000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":3593000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":13874000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":13874000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":13874000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":3471000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3471000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":6984000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":6984000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3513000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3513000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":10175000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":10175000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3191000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3191000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":13311000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":13311000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":13311000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":3271000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":3271000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":6004000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":6004000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":2733000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":2733000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":8975000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":8975000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":2971000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":2971000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":11761000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":11761000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":11761000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":3318000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":3318000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":6999000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":6999000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3681000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3681000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":10620000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":10620000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":3621000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":3621000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":14479000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14479000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14479000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":3794000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":3794000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":7474000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":7474000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":3680000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":3680000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":11515000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":11515000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":4041000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":4041000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":15743000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":15743000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":15743000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":3788000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":3788000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":8115000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":8115000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":4327000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":4327000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":12447000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":12447000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":4332000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":4332000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":16630000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":16630000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":16630000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":4687000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":4687000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":9262000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":9262000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":4575000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":4575000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":14114000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":14114000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":4852000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":4852000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":18591000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":18591000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":4425000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":9575000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":5150000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":14575000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":5000000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":19397000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves":{"label":"Costs Incurred, Acquisition of Oil and Gas Properties with Proved Reserves","description":"Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":12205000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":12205000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":12205000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":12205000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":463000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":463000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":463000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":463000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"CostsIncurredAcquisitionOfUnprovedOilAndGasProperties":{"label":"Costs Incurred, Acquisition of Unproved Oil and Gas Properties","description":"Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":11259000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":11259000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":11259000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":11259000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1460000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1460000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1460000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1460000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":7000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":7000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CostsIncurredDevelopmentCosts":{"label":"Costs Incurred, Development Costs","description":"Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":854000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":854000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":854000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":854000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1270000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1270000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1270000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1270000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1442000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1442000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1442000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1442000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":749000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":749000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":749000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CostsIncurredExplorationCosts":{"label":"Costs Incurred, Exploration Costs","description":"Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":502000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":502000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":502000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":502000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1482000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1482000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1482000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1482000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1250000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1250000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1250000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1250000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":22000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":22000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":22000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CostsIncurredOilAndGasPropertyAcquisitionExplorationAndDevelopmentActivities":{"label":"Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities","description":"Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":24820000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":24820000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":24820000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":24820000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":4675000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":4675000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":4675000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":4675000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2753000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2753000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2753000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":2753000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":778000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":778000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":778000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"CreditDerivativeMaximumExposureUndiscounted":{"label":"Credit Derivative, Maximum Exposure, Undiscounted","description":"Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions.","units":{"USD":[{"end":"2013-06-30","val":43000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":50000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":54000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":11000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":62000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":12000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":379000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":333000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":226000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":146000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":45000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":45000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":57000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":56000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":42000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":48000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":118000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-03-31","val":26000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":64000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":78000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":49000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-03-31","val":93000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":37000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-03-31","val":34000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":88000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":52000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":186000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-03-31","val":128000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":72000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":37000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":195000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":53000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":68000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-03-31","val":134000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":37000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":16000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-03-31","val":136000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":100000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":135000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":20000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-03-31","val":114000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":107000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":131000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":289000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"CumulativeEffectOfInitialAdoptionOfFIN48":{"label":"Cumulative Effect of Initial Adoption of FIN 48 (Deprecated 2011-01-31)","description":"Cumulative net-of-tax effect of initial adoption of FIN 48 - Accounting for Uncertainty in Income Taxes on the opening balance of retained earnings. The cumulative-effect adjustment does not include items that would not be recognized in earnings, such as the effect of adopting this Interpretation on tax positions related to business combinations. The amount of that cumulative-effect adjustment is the difference between the net amount of assets and liabilities recognized in the statement of financial position prior to the application of this Interpretation and the net amount of assets and liabilities recognized as a result of applying the provisions of this Interpretation.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":5000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"}]}},"CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption":{"label":"Cumulative Effect of New Accounting Principle in Period of Adoption (Deprecated 2020-01-31)","description":"Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.","units":{"USD":[{"end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"CurrentFederalTaxExpenseBenefit":{"label":"Current Federal Tax Expense (Benefit)","description":"Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":536000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":207000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":207000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":207000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":394000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":394000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":394000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":238000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":238000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":238000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":203000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":203000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-203000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-194000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":281000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-281000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-269000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":269000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":89000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":89000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-89000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-89000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-164000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-164000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-164000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-46000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-46000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-46000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":23000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-5000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-5000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-36000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-36000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CurrentForeignTaxExpenseBenefit":{"label":"Current Foreign Tax Expense (Benefit)","description":"Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":1261000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":2172000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2172000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2500000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2500000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2500000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":1948000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1934000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1934000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1002000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1002000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1002000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1081000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1081000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1081000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1082000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1128000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1128000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1066000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1066000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-195000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-160000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":160000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":160000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":352000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":352000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":352000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1426000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1426000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1426000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1445000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1445000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1445000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":462000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":462000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":462000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":816000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":816000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":816000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":2460000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2460000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2460000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":2232000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2232000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2232000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":2087000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2087000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2087000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2635000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2635000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1967000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CurrentIncomeTaxExpenseBenefit":{"label":"Current Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":1811000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":2198000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2198000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2734000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2734000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2734000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":2363000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2349000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":2349000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1247000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1247000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1247000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1293000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1293000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1293000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1285000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1444000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1444000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1369000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1369000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-104000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-69000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":171000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":171000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":171000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1439000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1439000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1439000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":1398000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1398000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1398000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":482000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":482000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":482000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":764000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":764000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":764000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":2471000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2471000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2471000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":2231000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2231000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2231000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":2088000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2088000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2088000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2600000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2600000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1973000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"CurrentStateAndLocalTaxExpenseBenefit":{"label":"Current State and Local Tax Expense (Benefit)","description":"Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":14000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":7000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":7000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":27000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":27000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":27000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":21000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":21000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":21000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":35000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-35000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-34000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":34000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-17000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-17000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-3000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":11000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":11000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":11000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DebtCurrent":{"label":"Debt, Current","description":"Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2008-12-31","val":67000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":67000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":67000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":67000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":87000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":389000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":44000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":16000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":16000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":16000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":16000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":16000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":1017000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":101000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":98000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":95000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":95000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":95000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":95000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1170000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":5000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":73000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":70000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1091000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2784000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1762000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":558000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":791000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":906000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1139000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":1139000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":770000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":802000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1232000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1232000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1232000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1232000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1232000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2228000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2216000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2215000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q4I"},{"end":"2018-03-31","val":483000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"}]}},"DebtInstrumentCarryingAmount":{"label":"Long-term Debt, Gross","description":"Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.","units":{"USD":[{"end":"2009-12-31","val":6346000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":4755000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":4755000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3537000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":3537000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3527000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3527000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3527000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3527000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":21215000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":21123000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":20706000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":20706000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":18970000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":18849000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":18849000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":20300000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":20900000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":20700000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":20428000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":20777000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":20777000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":19319000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":18982000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"DebtInstrumentFaceAmount":{"label":"Debt Instrument, Face Amount","description":"Face (par) amount of debt instrument at time of issuance.","units":{"USD":[{"end":"2016-12-30","val":2342000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2342000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":2342000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"}]}},"DebtInstrumentInterestRateStatedPercentage":{"label":"Debt Instrument, Interest Rate, Stated Percentage","description":"Contractual interest rate for funds borrowed, under the debt agreement.","units":{"pure":[{"end":"2010-12-31","val":0.07,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"DebtInstrumentRepurchaseAmount":{"label":"Debt Instrument, Repurchase Amount","description":"Fair value amount of debt instrument that was repurchased.","units":{"USD":[{"end":"2020-07-27","val":1400000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q2I"}]}},"DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet":{"label":"Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net","description":"Amount of unamortized debt discount (premium) and debt issuance costs.","units":{"USD":[{"end":"2016-12-31","val":100000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":100000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":100000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q4I"},{"end":"2017-03-31","val":95000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":98000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":92000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":85000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":85000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":85000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2018-03-31","val":81000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":76000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":73000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"DebtInstrumentUnamortizedDiscountPremiumNet":{"label":"Debt Instrument, Unamortized Discount (Premium), Net","description":"Amount, after accumulated amortization, of debt discount (premium).","units":{"USD":[{"end":"2015-03-31","val":21000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":21000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":20000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"}]}},"DebtOfSubsidiaryNotAssumed":{"label":"Debt of Subsidiary, Not Assumed","description":"Debt of a subsidiary that has not been assumed or guaranteed by the entity and any liens on premises of a subsidiary, or its consolidated subsidiaries, which have not been assumed by the entity, or its consolidated subsidiaries.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"DecreaseDueToSalesOfMineralsInPlace":{"label":"Decrease Due to Sales of Minerals in Place","description":"Amount of decrease in standardized measure of discounted future net cash flow as a result of sales of minerals in place.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":12000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":12000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1323000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1323000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1323000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1323000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1049000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1049000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"DeferredFederalIncomeTaxExpenseBenefit":{"label":"Deferred Federal Income Tax Expense (Benefit)","description":"Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-3635000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-70000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-70000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":20000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":20000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":20000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":82000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":82000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":82000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":87000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":87000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":87000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":234000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":234000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-234000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-227000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-606000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":606000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":616000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-616000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3403000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3403000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3403000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-3403000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-137000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-137000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-137000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-64000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-64000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-64000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":106000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":106000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":106000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-48000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-48000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-48000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-3000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-3000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":184000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":184000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":184000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":149000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":149000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":149000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DeferredFinanceCostsNet":{"label":"Debt Issuance Costs, Net","description":"Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.","units":{"USD":[{"end":"2014-12-31","val":121000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":121000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":100000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":100000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":85000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":85000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":69000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":69000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":66000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":66000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":85000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":85000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":86000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":86000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":78000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":78000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":67000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":67000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":58000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":58000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":49000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredFinanceCostsNoncurrentNet":{"label":"Debt Issuance Costs, Noncurrent, Net","description":"Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.","units":{"USD":[{"end":"2009-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":58000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":58000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":40000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":40000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":26000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":95000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":96000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":107000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":107000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":141000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"DeferredForeignIncomeTaxExpenseBenefit":{"label":"Deferred Foreign Income Tax Expense (Benefit)","description":"Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-657000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":100000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":100000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":239000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":239000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":239000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":661000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":622000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":622000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":363000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":363000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":363000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":346000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":346000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-346000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-226000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":33000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-33000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":19000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-144000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-163000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":163000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":163000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":451000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":451000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":451000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-89000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-89000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-89000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":102000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":102000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":102000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":101000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":101000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":101000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":306000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":306000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":306000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":23000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":23000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":23000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":144000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":144000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":144000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":320000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":320000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":320000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-74000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-74000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":250000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DeferredIncomeTaxExpenseBenefit":{"label":"Deferred Income Tax Expense (Benefit)","description":"Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-288000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-48000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-114000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-347000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-4653000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-4653000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":73000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":73000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":61000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":61000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-32000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-32000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":135000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":135000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":135000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":7000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":7000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":107000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":107000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":252000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":252000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":286000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":286000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":249000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":127000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":127000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":337000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":337000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":419000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":419000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":523000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":685000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":685000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":168000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":168000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":288000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":288000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":223000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":223000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":468000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":468000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":468000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":136000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":136000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":43000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":43000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":169000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":169000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":545000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":545000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-545000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-418000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":90000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":90000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":37000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":37000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":107000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":107000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-787000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":787000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":811000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-811000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-709000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-709000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-709000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1432000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-1432000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-1926000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-1926000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3413000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3394000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3394000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-3394000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":152000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":152000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":169000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-22000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":273000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":273000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":273000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-163000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-163000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-163000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":216000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":216000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":216000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":45000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":45000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":45000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":298000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":298000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":298000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":211000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":211000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":211000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":299000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":299000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":299000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":373000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":373000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":373000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-74000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-74000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":253000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DeferredIncomeTaxesAndTaxCredits":{"label":"Deferred Income Taxes and Tax Credits","description":"Amount of deferred income tax expense (benefit) and income tax credits.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-929000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-2039000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-2039000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":152000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":169000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-22000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":239000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":239000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":239000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":20000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":20000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":55000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":55000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":77000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":77000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":76000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":76000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":76000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":22000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":22000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":61000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":61000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":202000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":202000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-404000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":20000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":20000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":71000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":71000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":29000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":29000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":29000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-118000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-118000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-28000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-28000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":119000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":119000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":181000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":181000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":181000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":38000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":38000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":79000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":79000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":96000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":96000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":-171000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-171000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-171000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":48000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":48000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":63000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":63000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":83000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":83000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":36000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":36000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":36000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":35000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":35000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":74000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":74000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":130000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":130000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":182000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":182000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":182000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":46000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":46000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":37000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":37000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":36000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":36000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":-76000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-76000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":26000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":34000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-16000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":247000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"USD":[{"end":"2014-12-31","val":9715000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":8965000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":6480000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":5749000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":5672000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":5300000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":5300000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":4747000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":4788000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":4908000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":5113000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":5168000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":5168000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5363000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":5358000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":5451000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":5451000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":5351000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":5351000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":5224000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":5224000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":5329000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":5329000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":5613000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredIncomeTaxLiabilitiesNet":{"label":"Deferred Income Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.","units":{"USD":[{"end":"2019-12-31","val":4210000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":4210000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":4210000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":4210000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":4087000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":4180000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":4325000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":4446000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":4486000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":4500000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":4234000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4234000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":4234000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":4234000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":4234000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":4282000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":4297000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":4316000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":4269000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":4269000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":4269000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":4269000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":4269000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":4305000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":4343000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":4399000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":4453000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":4453000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":4453000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":4453000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":4453000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":4500000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":4491000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":4492000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":4376000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":4376000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":4376000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":4376000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":4376000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4402000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":4410000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":4359000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":4622000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredOtherTaxExpenseBenefit":{"label":"Deferred Other Tax Expense (Benefit)","description":"Amount of other deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. For example, but not limited to, acquisition-date income tax benefits or expenses recognized from changes in the acquirer's valuation allowance for its previously existing deferred tax assets resulting from a business combination and adjustments to beginning-of-year balance of a valuation allowance because of a change in circumstance causing a change in judgment about the realizability of the related deferred tax asset in future periods.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":69000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-69000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":-69000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":69000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-69000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-69000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"DeferredRevenueCurrent":{"label":"Deferred Revenue, Current","description":"Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.","units":{"USD":[{"end":"2009-12-31","val":54000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":180000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":180000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":69000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":69000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":94000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2015-12-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":82000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":82000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":91000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":91000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":35000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"DeferredStateAndLocalIncomeTaxExpenseBenefit":{"label":"Deferred State and Local Income Tax Expense (Benefit)","description":"Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-686000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":79000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":79000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-10000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-10000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-10000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-19000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-19000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":18000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":18000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":18000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":35000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":35000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-214000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":214000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":214000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-214000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":154000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":154000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-154000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-154000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-41000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-41000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-10000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-10000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-8000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-5000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":6000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":6000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DeferredTaxAssetsGross":{"label":"Deferred Tax Assets, Gross","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2009-12-31","val":4020000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":4226000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":4226000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":4417000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":4417000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4438000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":4347000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":5770000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":5770000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":5836000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":5836000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":5786000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":6378000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":6328000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":6251000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":7593000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":7593000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":5704000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":5705000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":5387000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":5592000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":5538000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":5538000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5687000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":5682000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":5306000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":5306000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":5069000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":5069000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4672000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":4672000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3945000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":3945000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4080000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsInventory":{"label":"Deferred Tax Assets, Inventory","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.","units":{"USD":[{"end":"2009-12-31","val":74000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":164000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":164000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":161000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2011-12-31","val":161000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2012-12-31","val":118000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"DeferredTaxAssetsLiabilitiesNet":{"label":"Deferred Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.","units":{"USD":[{"end":"2009-12-31","val":-2578000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-2819000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":-2819000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":-3285000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":-3285000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-3512000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":-3512000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-7282000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":-7282000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-6313000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsLiabilitiesNetNoncurrent":{"label":"Deferred Tax Assets, Net, Noncurrent","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2011-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":220000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2012-12-31","val":220000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2013-12-31","val":2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"}]}},"DeferredTaxAssetsNet":{"label":"Deferred Tax Assets, Net of Valuation Allowance","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.","units":{"USD":[{"end":"2009-12-31","val":1863000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":2000000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2000000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2024000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2024000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1995000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1904000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3283000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":3283000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3402000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3402000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3352000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2195000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2145000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2068000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1535000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1535000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1130000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":880000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1085000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":962000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":962000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":955000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":950000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1219000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1219000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1084000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1084000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":778000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":778000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":961000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":961000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1001000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsOperatingLossCarryforwards":{"label":"Deferred Tax Assets, Operating Loss Carryforwards","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.","units":{"USD":[{"end":"2015-12-31","val":621000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2898000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2898000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2043000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2043000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2235000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2235000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2249000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2249000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2443000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2443000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2220000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":2220000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1923000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1923000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1761000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1761000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1814000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1814000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1805000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsOperatingLossCarryforwardsDomestic":{"label":"Deferred Tax Assets, Operating Loss Carryforwards, Domestic","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.","units":{"USD":[{"end":"2009-12-31","val":521000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":442000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":442000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":356000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":356000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":343000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":343000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":925000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":925000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":590000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":590000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":590000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":621000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":621000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsOther":{"label":"Deferred Tax Assets, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.","units":{"USD":[{"end":"2009-12-31","val":126000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":276000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":256000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":374000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":557000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":557000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":734000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":734000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":702000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":509000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":477000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":478000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":485000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":485000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":259000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":260000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":212000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":270000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":267000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":267000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":238000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":227000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":252000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":252000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":230000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":230000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":215000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":215000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":199000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsPropertyPlantAndEquipment":{"label":"Deferred Tax Assets, Property, Plant and Equipment","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.","units":{"USD":[{"end":"2015-12-31","val":1422000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":346000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":346000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":236000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":236000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax":{"label":"Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.","units":{"USD":[{"end":"2009-12-31","val":509000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":413000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":413000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":406000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":406000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":474000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":474000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":603000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":603000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":737000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":737000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":737000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":569000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":569000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":569000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":444000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":444000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":490000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":490000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2020-12-31","val":244000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":244000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":244000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":24000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"}]}},"DeferredTaxAssetsTaxCreditCarryforwardsForeign":{"label":"Deferred Tax Assets, Tax Credit Carryforwards, Foreign","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.","units":{"USD":[{"end":"2009-12-31","val":1664000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1837000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1837000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2011000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2011000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2022000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2022000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2144000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2144000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2306000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2306000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2306000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1552000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1552000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1552000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2094000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2094000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1814000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1814000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1716000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1716000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1641000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1641000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1536000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1536000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1514000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1514000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1228000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1228000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":184000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":184000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":159000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other.","units":{"USD":[{"end":"2009-12-31","val":234000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":215000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":215000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":245000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":245000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":315000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":315000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":443000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":443000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":422000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":422000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":422000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":521000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":521000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":442000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":403000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":403000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":248000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":248000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":245000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":204000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":198000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":198000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":171000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":177000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":105000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":105000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":99000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":99000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":78000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":78000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":76000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":76000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":72000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.","units":{"USD":[{"end":"2009-12-31","val":882000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":931000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":931000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":962000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":962000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":910000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":819000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1098000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1098000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1047000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1047000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1029000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1184000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1166000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.","units":{"USD":[{"end":"2015-12-31","val":1167000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":923000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":923000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":789000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":789000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":881000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1069000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1108000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1108000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1194000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1194000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1193000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1193000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1303000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1303000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1390000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1390000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1657000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1657000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1845000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxAssetsValuationAllowance":{"label":"Deferred Tax Assets, Valuation Allowance","description":"Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.","units":{"USD":[{"end":"2009-12-31","val":-2157000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-2226000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2226000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2393000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2393000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2443000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2443000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2487000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2487000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2434000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2434000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2434000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4183000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4183000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4183000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":6058000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":6058000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":4575000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":4575000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":4507000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":4507000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4576000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":4576000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4732000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":4732000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":4087000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4087000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":3985000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":3985000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":3894000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":3894000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":2984000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":2984000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":3079000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxesBusinessCombinationValuationAllowanceAllocatedToContributedCapital":{"label":"Deferred Taxes, Business Combination, Valuation Allowance, Allocated to Contributed Capital","description":"Amount of valuation allowance for tax benefit to be credited to shareholders' equity if tax benefit subsequently becomes realizable. Includes, but is not limited to, adjustment to opening balance of retained earnings for change in accounting principle or correction of error, gain (loss) in comprehensive income (loss) but excluded from net income (loss), deductible expenditure for income tax purposes reported as reduction of shareholders' equity, and deductible temporary difference existing at date of quasi-reorganization.","units":{"USD":[{"end":"2009-12-31","val":44000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":59000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":59000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":80000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":82000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"DeferredTaxLiabilities":{"label":"Deferred Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.","units":{"USD":[{"end":"2009-12-31","val":-4441000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-4819000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":4819000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":5309000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":5309000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":5507000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":5416000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10565000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":10565000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9715000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":6313000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":5613000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4285000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":3604000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3604000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3765000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":3765000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3618000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":3658000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":4028000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":4028000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4206000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":4206000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":4408000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":4232000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4232000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":4267000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":4267000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4446000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":4446000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":4368000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":4368000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4612000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilitiesCurrent":{"label":"Deferred Tax Liabilities, Net, Current","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.","units":{"USD":[{"end":"2009-12-31","val":201000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":61000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":61000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":103000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2011-12-31","val":103000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2012-12-31","val":384000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2012-12-31","val":384000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2013-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"}]}},"DeferredTaxLiabilitiesNoncurrent":{"label":"Deferred Tax Liabilities, Net, Noncurrent","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2008-12-31","val":2339000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":2339000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":2339000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":2339000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":2471000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":2632000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":2660000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":2503000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":2503000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":2503000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":2503000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":2503000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":2513000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":2612000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":2846000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":2873000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2873000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":2873000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":2873000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2873000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":3056000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3265000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3365000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3255000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":3255000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":3255000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":3255000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":3255000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3413000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3550000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3378000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3490000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3490000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3490000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3490000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3490000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3580000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":6840000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":6922000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":7410000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":7410000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":7410000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":7410000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":7410000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":7504000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7451000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7559000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":6398000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":6398000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":6398000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":6398000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":6398000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":5691000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":5625000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4870000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4363000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4288000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4288000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":3607000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":3607000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3607000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3607000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3567000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4442000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":3765000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3758000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3549000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3768000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":3768000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":3768000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":3768000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":3768000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3786000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3870000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3771000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3622000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":3622000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":3649000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":3649000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":3663000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3642000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3702000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3839000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":4032000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":4032000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":4032000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":4032000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":4032000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":4067000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":4055000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":4245000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":4210000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"}]}},"DeferredTaxLiabilitiesOther":{"label":"Deferred Tax Liabilities, Other","description":"Amount of deferred tax liability attributable to taxable temporary differences classified as other.","units":{"USD":[{"end":"2009-12-31","val":-66000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-28000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":28000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":72000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":72000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":60000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":70000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":34000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":34000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":185000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":185000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":185000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":58000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":55000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":55000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":195000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":195000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":226000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":223000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":130000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":107000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":157000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":157000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":169000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":175000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":152000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":152000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":211000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":211000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":195000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":195000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":155000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":155000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":241000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DeferredTaxLiabilitiesPropertyPlantAndEquipment":{"label":"Deferred Tax Liabilities, Property, Plant and Equipment","description":"Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.","units":{"USD":[{"end":"2009-12-31","val":-3609000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-3874000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":3874000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":4227000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":4227000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4563000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":4462000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":4887000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":4887000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":5331000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":5331000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":4581000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":5567000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4839000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"DeferredTaxLiabilitiesUndistributedForeignEarnings":{"label":"Deferred Tax Liabilities, Undistributed Foreign Earnings","description":"Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.","units":{"USD":[{"end":"2009-12-31","val":-766000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-917000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":917000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1010000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1010000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":884000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":884000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":936000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":936000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":807000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":807000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":807000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":855000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":855000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":852000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":779000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":779000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":811000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":811000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":578000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":601000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":639000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":639000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":694000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":694000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":807000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":807000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":911000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":911000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":981000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":981000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1037000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DefinedBenefitPlanAccumulatedBenefitObligationIncreaseDecreaseForSettlementAndCurtailment":{"label":"Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment","description":"Amount of (increase) decrease in accumulated benefit obligation of defined benefit plan from effects of settlement and curtailment.","units":{"USD":[{"start":"2020-01-01","end":"2020-09-30","val":-184000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax":{"label":"Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax","description":"Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"end":"2011-12-31","val":-215000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-103000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":-106000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":137000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":126000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":126000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":126000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-252000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":-252000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":-252000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":-7000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":-7000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"DefinedBenefitPlanActuarialNetGainsLosses":{"label":"Defined Benefit Plan, Actuarial Net (Gains) Losses (Deprecated 2012-01-31)","description":"The net increase or decrease of changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":15000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":7000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":22000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":7000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":5000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":11000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":11000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":6000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":6000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":17000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":17000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":6000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":6000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":6000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":12000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":6000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":18000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":6000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate":{"label":"Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate","description":"Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.","units":{"pure":[{"end":"2019-12-31","val":0.065,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q4I"},{"end":"2020-07-31","val":0.0625,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q2I"},{"end":"2020-09-30","val":0.0325,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets":{"label":"Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets","description":"Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.","units":{"pure":[{"start":"2019-01-01","end":"2019-12-31","val":0.034,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019"},{"end":"2020-07-31","val":0.024,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q2I"}]}},"DefinedBenefitPlanExpectedReturnOnPlanAssets":{"label":"Defined Benefit Plan, Expected Return (Loss) on Plan Assets","description":"Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":-40000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":-20000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":-59000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":-19000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":23000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":47000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":-47000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":24000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":-24000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":70000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":-70000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":23000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":-23000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":24000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":24000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":72000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":24000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease":{"label":"Defined Benefit Plan, Plan Assets, Period Increase (Decrease)","description":"Amount of increase (decrease) in plan assets of defined benefit plan.","units":{"USD":[{"start":"2020-01-01","end":"2020-09-30","val":103000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"DefinedBenefitPlanFundedStatusOfPlan":{"label":"Defined Benefit Plan, Funded (Unfunded) Status of Plan","description":"Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.","units":{"USD":[{"end":"2020-09-30","val":-888000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"DefinedBenefitPlanInterestCost":{"label":"Defined Benefit Plan, Interest Cost","description":"Amount of cost recognized for passage of time related to defined benefit plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":55000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":28000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":83000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":28000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":27000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":53000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":53000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":26000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":26000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":80000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":80000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":27000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":27000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":27000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":54000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":27000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":81000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":27000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DefinedBenefitPlanNetPeriodicBenefitCost":{"label":"Defined Benefit Plan, Net Periodic Benefit Cost (Credit)","description":"Amount of net periodic benefit cost (credit) for defined benefit plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":38000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":23000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":65000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":27000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":19000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":16000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":16000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":53000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":53000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":18000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":18000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":19000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":38000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":56000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":18000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation":{"label":"Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation","description":"Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2009-12-31","val":1450000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1581000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1581000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1874000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1874000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2031000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2031000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1933000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1933000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2090000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2090000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2090000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2037000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2037000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2037000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2014000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2014000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2163000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2163000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2048000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2048000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2361000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2361000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2664000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2664000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2476000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets":{"label":"Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets","description":"Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2009-12-31","val":1076000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1122000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1122000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1261000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1261000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1443000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1443000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1490000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1490000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1433000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1433000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1433000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1399000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1399000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1399000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1312000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1312000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1521000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1521000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1373000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1373000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1615000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1615000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1884000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1884000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1988000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1988000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1422000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1422000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1475000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1475000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1379000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation":{"label":"Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation","description":"Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.","units":{"USD":[{"end":"2009-12-31","val":1544000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1662000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1662000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2055000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2055000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2247000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2247000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2180000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2180000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2221000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2221000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2221000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2139000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2139000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":2139000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2127000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2127000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2287000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2287000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2177000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2177000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2522000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2522000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":2666000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2666000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":2476000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":2476000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1831000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1831000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1828000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1828000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1734000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments":{"label":"Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment","description":"Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":-4000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":-4000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"}]}},"DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1":{"label":"Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment","description":"Amount of gain (loss) recognized in net periodic benefit (cost) credit from settlement and curtailment.","units":{"USD":[{"start":"2020-07-01","end":"2020-09-30","val":4000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"}]}},"DefinedBenefitPlanServiceCost":{"label":"Defined Benefit Plan, Service Cost","description":"Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":17000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":8000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":25000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":8000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":10000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":18000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":18000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":8000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":8000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":26000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":26000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":8000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":8000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":10000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":29000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DefinedBenefitPlanSpecialTerminationBenefits":{"label":"Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits","description":"Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":-5000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":-2000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":3000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-22000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":22000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"DefinedContributionPlanCostRecognized":{"label":"Defined Contribution Plan, Cost","description":"Amount of cost for defined contribution plan.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":58000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":30000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":30000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":36000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":36000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":36000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":35000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":35000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":35000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":66000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":66000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":66000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":66000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":79000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":79000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":79000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":79000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":98000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":78000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":78000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":78000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":65000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":65000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":65000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":85000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":85000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":85000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":40000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":40000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":40000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":95000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":95000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":95000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":101000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":101000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":101000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":119000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":119000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":119000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":131000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":131000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":140000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"Deposits":{"label":"Deposits","description":"The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.","units":{"USD":[{"end":"2014-06-30","val":414000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":115000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"}]}},"DepreciationDepletionAndAmortization":{"label":"Depreciation, Depletion and Amortization","description":"The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":2797000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":3863000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":3863000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":939000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1829000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":2717000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3497000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3497000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3497000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":722000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":722000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1374000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1374000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":2017000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":2017000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":2610000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":2610000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":2610000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":389000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":389000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":839000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":839000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":1257000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1257000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1714000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":451000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":451000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":893000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":893000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":1351000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1351000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1754000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":347000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":347000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":699000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":699000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":1021000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1021000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1412000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":341000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":341000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":699000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":699000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":1093000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1093000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1528000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":419000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":419000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":902000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":902000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":1430000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1430000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1998000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":489000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":489000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":996000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":996000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":1504000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1504000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2019000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":399000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":399000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":946000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":946000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":1479000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1479000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2068000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":595000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":595000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1104000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1104000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":1704000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1704000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":2241000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2241000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":466000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1134000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":1759000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":2244000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DerivativeAssetFairValueGrossLiability":{"label":"Derivative Asset, Fair Value, Gross Liability","description":"Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.","units":{"USD":[{"end":"2015-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":17000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":5000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":2000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":4000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":8000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":16000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":4000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q4I"},{"end":"2023-03-31","val":3000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":9000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q4I"},{"end":"2024-06-30","val":7000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":3000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DerivativeAssets":{"label":"Derivative Asset","description":"Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2012-12-31","val":33000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":33000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":33000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":61000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":53000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":59000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":59000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":59000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":59000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":59000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":11000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":62000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":12000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":330000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":307000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":194000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":116000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":15000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":15000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":14000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":14000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":14000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":14000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":14000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":64000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":62000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":48000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":48000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":132000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":132000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":132000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":132000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":132000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":26000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":64000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":78000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":166000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":12000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":37000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":16000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":93000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":37000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":36000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":90000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":62000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":183000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":183000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":183000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":183000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":183000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":118000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":56000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":33000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":191000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":49000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":62000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":131000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":28000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":13000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":136000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":93000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":132000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":20000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":20000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":110000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DerivativeFairValueOfDerivativeAsset":{"label":"Derivative Asset, Fair Value, Gross Asset","description":"Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.","units":{"USD":[{"end":"2015-12-31","val":20000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":146000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":146000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":146000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":146000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":146000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":30000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":68000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":81000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":167000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":167000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":167000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":167000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":167000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":13000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":54000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":23000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":23000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":23000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":23000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":95000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":42000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":6000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":74000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":38000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":94000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":65000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":184000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":184000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":184000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":184000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":184000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":126000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":72000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":37000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":77000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":195000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":53000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":68000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":170000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":134000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":37000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":16000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":80000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":136000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":100000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":135000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":20000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":20000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":114000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DerivativeFairValueOfDerivativeLiability":{"label":"Derivative Liability, Fair Value, Gross Liability","description":"Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.","units":{"USD":[{"end":"2015-12-31","val":92000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":8000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":18000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":48000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":33000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":33000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":33000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":33000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":57000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":53000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":81000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":59000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":48000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":48000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":48000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":48000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":48000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":15000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":56000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":42000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":147000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":34000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":20000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":21000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":21000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":21000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":21000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":21000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":68000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":108000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":152000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":28000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":28000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":28000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":28000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":28000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":22000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":546000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":272000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":11000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":110000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":44000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":19000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":47000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":34000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":89000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":89000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":15000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DerivativeInstrumentsGainLossRecognizedInIncomeNet":{"label":"Derivative Instruments, Gain (Loss) Recognized in Income, Net (Deprecated 2013-01-31)","description":"The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":18000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":15000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":36000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":18000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":-9000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":16000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":15000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"}]}},"DerivativeLiabilities":{"label":"Derivative Liability","description":"Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2012-12-31","val":20000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":20000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":20000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":223000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":208000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":320000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":320000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":320000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":320000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":320000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":401000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":317000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":265000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":99000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":99000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":99000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":99000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":99000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":97000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":51000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":70000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":74000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":86000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":25000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":24000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":8000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":44000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":44000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":44000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":44000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":44000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":14000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":45000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":32000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":32000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":32000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":32000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":56000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":52000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":81000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":42000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":41000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":41000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":41000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":41000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":41000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":13000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":51000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":41000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":21000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":145000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":30000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":17000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":20000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":20000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":20000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":20000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":20000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":60000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":92000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":148000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":18000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":542000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":266000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":42000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":8000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":101000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":41000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":24000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":19000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":40000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":31000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":89000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":89000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":11000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DerivativeLiabilityFairValueGrossAsset":{"label":"Derivative Liability, Fair Value, Gross Asset","description":"Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.","units":{"USD":[{"end":"2015-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":17000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":5000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":2000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":4000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":8000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":16000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":4000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q4I"},{"end":"2023-03-31","val":3000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":9000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q4I"},{"end":"2024-06-30","val":7000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":3000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q4I"},{"end":"2025-03-31","val":4000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"DirectOperatingCosts":{"label":"Direct Operating Costs","description":"The aggregate direct operating costs incurred during the reporting period.","units":{"USD":[{"start":"2018-01-01","end":"2018-12-31","val":11708000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2919000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":5929000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3005000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":8599000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":2670000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":11534000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":11534000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":2545000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":2545000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":4939000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":4939000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":2394000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":2394000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":7404000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":7404000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":2465000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":2465000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":10031000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":2786000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":2787000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":5853000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":5853000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3067000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3067000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":8862000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":8862000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":3009000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":3009000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":12016000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":12016000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":12032000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":3150000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":3150000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":6153000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":6153000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":3003000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":3003000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":9519000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":9519000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":3366000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":3366000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":13041000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":13070000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":13070000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":3165000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":3165000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":6712000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":6714000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":3548000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":3549000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":10260000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":10267000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":3548000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":3553000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":13627000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":13627000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":13627000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":3844000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":3844000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":7719000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":7719000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":3875000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":3875000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":11796000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":11796000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":4077000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":4077000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":15554000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":15554000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":3756000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":8038000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":4282000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":12243000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":4205000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":16374000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax":{"label":"Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax","description":"Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-177000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-182000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-198000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-198000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-198000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":32000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":32000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":38000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":38000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":41000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":41000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":57000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":57000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":57000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic and Diluted Share","description":"Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation, when the per share amount is the same.","units":{"USD/shares":[{"start":"2015-01-01","end":"2015-03-31","val":0.02,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-0.01,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.","units":{"USD/shares":[{"start":"2013-01-01","end":"2013-12-31","val":0.2,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.11,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-0.2,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.03,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.03,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.03,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0.04,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-0.01,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-0.01,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.","units":{"USD/shares":[{"start":"2013-01-01","end":"2013-12-31","val":0.2,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.11,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0.02,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.03,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.01,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":-0.16,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-0.15,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-06-30","val":0.03,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.03,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-06-30","val":-0.01,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-0.01,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves10PercentAnnualDiscountForEstimatedTimingOfCashFlows":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, 10 Percent Annual Discount for Estimated Timing of Cash Flows (Deprecated 2014-01-31)","description":"This is the amount that is derived from using a discount rate of ten percent a year to reflect the timing of the future net cash flows relating to proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":5295000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureCashInflows":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Cash Inflows (Deprecated 2014-01-31)","description":"Amount of estimated future cash inflows from sale of proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":38901000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureDevelopmentCosts1":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Development Costs (Deprecated 2014-01-31)","description":"Amount of estimated future cost to be incurred in developing proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-6480000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureIncomeTaxExpense1":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Income Tax Expense (Deprecated 2014-01-31)","description":"Amount of estimated future income tax expense to be incurred based on the future income less future expense derived from production and sale of proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-4935000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureNetCashFlows":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Net Cash Flows (Deprecated 2014-01-31)","description":"Amount of estimated net future cash inflows, after subtracting future development and production costs and future income tax expenses, from sale of proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":14712000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesFutureProductionCosts1":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Production Costs (Deprecated 2014-01-31)","description":"Amount of estimated future cost to be incurred in producing proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-12774000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReservesStandardizedMeasure":{"label":"Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Standardized Measure (Deprecated 2014-01-31)","description":"This amount is the future net cash flows less the computed discount.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":9417000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent":{"label":"Disposal Group, Including Discontinued Operation, Assets, Noncurrent","description":"Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":3999000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":4300000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4110000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":4124000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4124000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4124000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":4386000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":4400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4114000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"DisposalGroupNotDiscontinuedOperationGainLossOnDisposal":{"label":"Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal","description":"Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":85000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":13000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":13000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-12-31","val":13000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2014-01-01","end":"2014-12-31","val":717000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":749000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":762000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":81000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":81000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":56000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":56000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":126000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-12-31","val":208000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":25000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"}]}},"DividendsCommonStockCash":{"label":"Dividends, Common Stock, Cash","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-587000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-527000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-527000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-65000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-65000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-65000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-65000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-207000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":-348000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":-1058000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-1058000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1058000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-237000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":949000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":1186000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-1424000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1424000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1424000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":297000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":594000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":891000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":1188000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1188000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1188000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":297000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1664000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":1989000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":2315000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2315000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2315000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2315000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":326000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":653000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":980000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":1306000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1306000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1306000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1702000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":52000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":220000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":278000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":279000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":279000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":370000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":370000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":28000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":173000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":173000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":173000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":245000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":245000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":386000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":386000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":141000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":459000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":459000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":73000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":73000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":569000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":569000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":569000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":143000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":143000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":216000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":216000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":73000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":288000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":288000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":72000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":72000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":364000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":364000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":364000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2021-01-01","end":"2021-03-31","val":204000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":204000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":315000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":315000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":111000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":111000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":520000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":520000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":205000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":205000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":1154000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1154000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1154000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":472000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":472000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":928000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":928000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":456000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":456000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1253000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1253000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":325000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":325000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1684000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1684000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":354000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":354000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":724000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":724000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":370000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":370000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1056000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":332000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1489000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":390000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1118000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":728000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2"}]}},"DividendsPayableAmountPerShare":{"label":"Dividends Payable, Amount Per Share","description":"The per share amount of a dividend declared, but not paid, as of the financial reporting date.","units":{"USD/shares":[{"end":"2011-03-31","val":0.25,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":0.25,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-29","val":0.25,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2012-03-31","val":0.3125,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0.3125,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0.3125,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2013-03-31","val":0.3125,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"}]}},"DividendsPayableCurrent":{"label":"Dividends Payable, Current","description":"Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2008-12-31","val":44000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-12-31","val":99000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":99000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":99000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":99000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":99000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":98000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":329000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":143000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":240000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":240000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":240000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":240000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":240000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":239000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":239000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":240000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":240000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":240000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":240000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":240000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":240000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":298000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":299000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":299000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":299000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":299000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":299000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":299000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-30","val":1368000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":332000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":333000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":333000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":333000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":333000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":333000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":333000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":334000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":334000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":335000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":60000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":175000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":65000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":8000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":8000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2017-12-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":72000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":73000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":73000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":73000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":73000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":73000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":73000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":73000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":73000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":73000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":73000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":73000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":73000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":73000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":111000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":111000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":111000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":220000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":220000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":220000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":220000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":220000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":218000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":217000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":216000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":217000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":217000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":217000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":217000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":217000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":217000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":217000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":217000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":218000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":218000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":218000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":218000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":218000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":217000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":218000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":218000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":219000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":219000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":219000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":219000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":219000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":217000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":218000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":218000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":219000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"DividendsPreferredStock":{"label":"Dividends, Preferred Stock","description":"Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).","units":{"USD":[{"start":"2009-01-01","end":"2009-03-31","val":-60000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2010-01-01","end":"2010-06-30","val":63000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":15000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":63000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DividendsPreferredStockCash":{"label":"Dividends, Preferred Stock, Cash","description":"Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-208000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-274000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":-274000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-06-30","val":-120000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":-174000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":-222000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":-222000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":-222000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-48000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-63000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":-63000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":-63000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":-63000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":63000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"DueFromJointVenturesNoncurrent":{"label":"Due from Joint Ventures, Noncurrent","description":"Amounts due from an entity in which the reporting entity shares joint control with another party or group, due after 1 year (or 1 business cycle).","units":{"USD":[{"end":"2014-12-31","val":50000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":50000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":49000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":49000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":49000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":71000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":68000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":68000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"EarlyRepaymentOfSeniorDebt":{"label":"Early Repayment of Senior Debt","description":"The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.","units":{"USD":[{"start":"2016-04-01","end":"2016-06-30","val":568000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":568000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q2"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":8.12,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":2.93,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":5.4,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":2.47,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":6.78,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":1.37,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-29.72,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-14.86,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":0.05,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":0.11,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":0.11,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":1.56,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":1.56,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":0.71,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":1.43,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":1.43,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":3.8,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":3.8,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":2.23,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":2.23,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1.11,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":3.05,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3.05,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":6.1,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":1.13,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":1.04,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":1.04,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":2.08,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1.04,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":3.48,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1.74,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":0.71,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":0.71,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":1.42,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0.71,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":6.01,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":3.01,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2.5,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1.25,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":1.25,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1.25,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4.67,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":4.67,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4.67,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":1.64,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":1.64,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1.58,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1.58,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1.58,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":1.58,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":3.03,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":3.03,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":1.44,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1.44,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1.44,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1.44,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":4.14,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4.14,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1.11,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1.11,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":1.11,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1.11,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4.81,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4.81,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":4.81,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":0.67,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":0.67,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.81,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":0.81,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":0.81,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":0.81,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1.55,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1.55,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0.75,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.75,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":0.75,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0.75,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2.42,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":2.42,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.87,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.87,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":0.87,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.87,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3.2,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3.2,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3.2,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.78,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":0.78,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.17,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1.17,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1.97,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1.97,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2.65,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.65,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.65,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2.65,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":0.68,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":0.68,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.95,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0.95,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1.48,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1.48,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2.75,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-2.75,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4.16,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-7.77,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-3.47,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-12-31","val":-3.16,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.16,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.34,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.53,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.72,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":0.72,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1.07,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1.07,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1.46,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1.46,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0.49,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0.49,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1.23,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1.23,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.74,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.74,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":2.18,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":2.18,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0.95,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0.95,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":2.93,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1.05,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1.05,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1.63,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1.63,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":0.58,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":0.58,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1.91,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1.91,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0.28,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0.28,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2023-01-01","end":"2023-03-31","val":0.46,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":0.46,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":0.7,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":0.7,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":0.24,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0.24,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1.01,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1.01,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":0.31,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0.31,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2024-01-01","end":"2024-03-31","val":0.33,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0.33,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0.75,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":0.75,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0.42,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0.42,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1.12,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1.12,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":0.36,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":0.36,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2025-01-01","end":"2025-03-31","val":0.24,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0.78,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":0.53,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1.25,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":0.46,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2.75,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-3.47,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-3.47,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-3.35,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-3.35,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-3.35,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-3.35,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-3.35,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-3.7,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.38,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-0.38,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.38,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3.45,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":0.16,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":0.16,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":0.16,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-3.16,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-3.16,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":0.21,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":0.21,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":0.16,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0.16,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.34,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.53,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"}]}},"EarningsPerShareDiluted":{"label":"Earnings Per Share, Diluted","description":"The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":7.5,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":2.64,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":4.89,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":2.25,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":6.2,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":1.31,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-29.72,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-14.86,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":0.05,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":0.11,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":0.11,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":1.54,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":1.54,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":0.69,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":1.38,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":1.38,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":3.7,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":3.7,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":2.07,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":2.07,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1.04,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":2.93,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2.93,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":5.86,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":1.08,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":1,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":1,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":2,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":3.4,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1.7,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":0.7,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":0.7,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":1.4,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0.7,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":5.88,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2.94,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2.49,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1.24,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":1.24,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1.24,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4.57,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":4.57,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4.57,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":1.63,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":1.63,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1.57,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1.57,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1.57,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":1.57,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":3,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":3,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":1.43,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1.43,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1.43,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1.43,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":4.1,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4.1,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1.1,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1.1,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":1.1,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1.1,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4.78,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4.78,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":4.78,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":0.67,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":0.67,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.8,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":0.8,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":0.8,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":0.8,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1.55,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1.55,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0.74,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0.74,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":0.74,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0.74,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2.41,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":2.41,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.86,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0.86,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":0.86,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.86,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3.19,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3.19,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3.19,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.78,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":0.78,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":0.68,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1.17,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1.17,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0.49,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1.96,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1.96,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0.79,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2.64,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.64,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2.64,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2.64,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":0.68,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":0.68,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":0.49,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.95,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0.95,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0.46,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1.47,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1.47,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0.53,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1.26,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2.75,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-2.75,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2.38,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4.16,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4.16,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-7.77,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-7.77,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":-3.58,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-11.31,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-3.47,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-06-30","val":-3.7,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-0.38,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3.45,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0.16,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-3.16,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.16,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":0.16,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.34,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.53,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1.25,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.71,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":0.71,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":0.47,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1.07,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1.07,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1.45,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1.45,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1.78,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1.78,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1.78,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0.48,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0.48,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1.21,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1.21,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.73,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0.73,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":2.16,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":2.16,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0.94,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0.94,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":2.9,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1.04,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1.04,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1.61,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1.61,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":0.57,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":0.57,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1.9,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1.9,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0.28,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0.28,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2023-01-01","end":"2023-03-31","val":0.46,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":0.46,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":0.69,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":0.69,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":0.23,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0.23,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1.01,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1.01,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":0.31,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0.31,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2024-01-01","end":"2024-03-31","val":0.32,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0.32,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0.75,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":0.75,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0.42,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0.42,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1.11,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1.11,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":0.36,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":0.36,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2025-01-01","end":"2025-03-31","val":0.24,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0.77,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":0.53,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1.24,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":0.46,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"EffectiveIncomeTaxRateContinuingOperations":{"label":"Effective Income Tax Rate Reconciliation, Percent","description":"Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.21,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":47,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":0.41,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":0.4,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.4,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":0.36,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":35,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":0.35,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":0.35,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":0.35,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":0.35,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.35,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":0.35,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":0.35,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.35,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":0.35,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":0.36,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":0.36,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":0.35,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":0.33,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":0.33,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.33,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":0.33,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":0.27,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":0.28,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.28,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0.28,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.34,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":0.34,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0.34,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":0.34,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":0.33,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.33,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":0.3,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.3,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.3,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.31,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.36,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0.36,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.35,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0.35,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":0.34,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0.34,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-0.76,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-0.76,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-0.28,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.28,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.22,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0.22,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0.23,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.25,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0.25,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0.18,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0.18,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.14,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.14,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-0.14,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-0.14,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-0.02,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-0.02,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-0.02,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.05,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-0.05,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":0.11,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.11,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-0.11,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.4,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0.4,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.38,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":0.38,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":0.47,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":0.47,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-0.3,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.3,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0.3,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.38,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0.38,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0.35,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":0.35,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":0.38,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":0.25,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.25,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.25,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0.57,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0.57,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1.01,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1.01,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-3.02,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":3.02,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":1.66,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1.66,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1.66,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0.1,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":0.1,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.09,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-0.09,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":1.02,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1.02,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":0.53,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.53,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.53,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0.32,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0.32,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0.31,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":0.31,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":0.29,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":0.29,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":0.3,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.3,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.3,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":0.3,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":0.3,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":0.32,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":0.32,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":0.33,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":0.33,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":0.34,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0.34,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0.34,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":0.32,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":0.32,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":0.37,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":0.37,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":0.36,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":0.36,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":0.38,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.38,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0.38,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0.31,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0.31,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0.34,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":0.34,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":0.35,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":0.35,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":0.37,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0.37,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":0.39,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0.37,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":0.36,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":0.35,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent","description":"Percentage of domestic federal statutory tax rate applicable to pretax income (loss).","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.35,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":35,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":0.35,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":0.35,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.35,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0.35,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.35,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.35,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.35,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0.35,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":0.35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0.35,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0.35,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":0.35,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.35,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.35,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0.35,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.21,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.21,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.21,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.21,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.21,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.21,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.21,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.21,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.21,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.21,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0.21,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0.21,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.21,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.21,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0.21,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.21,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0.21,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.21,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":-0.03,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0.02,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.02,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-0.01,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-0.04,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.04,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.04,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-0.04,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-0.21,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-0.21,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-0.21,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-0.21,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-0.48,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-0.48,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-0.48,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.03,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.03,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.03,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.49,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.49,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.49,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.12,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.12,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.12,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-0.03,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-0.04,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.02,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-0.02,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-0.02,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.13,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-0.12,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.01,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.","units":{"pure":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.13,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.13,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.13,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationDispositionOfAssets":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.","units":{"pure":[{"start":"2020-01-01","end":"2020-12-31","val":0.08,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.08,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.08,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"}]}},"EffectiveIncomeTaxRateReconciliationDispositionOfBusiness":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Business, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disposition of a business not qualifying as a discontinued operation.","units":{"pure":[{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.05,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-0.03,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-0.03,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"}]}},"EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":43,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":0.43,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":0.04,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.04,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0.02,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.02,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.02,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.02,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.02,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0.02,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-0.04,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-0.04,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-0.04,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0.02,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.32,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.32,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.09,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.09,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.13,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.13,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.13,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.21,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.06,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.04,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.04,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.04,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.05,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0.05,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0.05,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.05,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.05,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.06,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"pure":[{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2023-01-01","end":"2023-12-31","val":0.01,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.01,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepletion":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depletion, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to depletion.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.03,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-0.03,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-0.03,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-0.03,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-0.03,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.03,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-0.03,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.03,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-0.03,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-0.05,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-0.05,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-0.05,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-0.05,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.62,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.62,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.33,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.33,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.06,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.06,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0.06,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-0.08,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-0.08,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-0.08,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.04,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.04,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.04,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-0.39,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.39,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.39,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-0.06,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-0.06,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-0.06,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-0.03,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-0.03,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-0.03,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-0.03,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-0.03,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-0.03,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-0.03,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.02,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-0.01,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-0.03,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":-0.16,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-1.42,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1.42,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-0.75,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.75,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to restructuring charges.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.15,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.15,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0.15,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"}]}},"EffectiveIncomeTaxRateReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"pure":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.05,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.05,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.03,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.03,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.09,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.09,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.09,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.03,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.03,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.01,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.01,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.01,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense.","units":{"pure":[{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.15,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.01,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.01,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2023-01-01","end":"2023-12-31","val":0.01,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.01,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"}]}},"EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings":{"label":"Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the repatriation of foreign earnings.","units":{"pure":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0.07,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.07,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.07,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-0.38,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-0.38,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-0.2,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-0.2,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-0.03,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-0.03,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-0.03,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.07,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.07,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0.07,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.06,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.06,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0.06,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.18,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.18,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.18,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.11,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.11,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.11,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.09,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.09,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.09,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0.1,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0.1,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0.1,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0.1,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0.1,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.11,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.03,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-04-01","end":"2013-06-30","val":0.03,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0.03,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":0.03,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0.03,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0.03,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.27,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.27,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.14,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.14,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-0.06,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.06,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.06,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.01,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxCreditsForeign":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credit.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":-0.01,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0.02,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0.02,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0.01,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.01,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.01,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.02,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.02,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0.02,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0.02,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.02,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0.02,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0.02,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.02,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.02,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-0.39,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-0.39,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-0.17,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.17,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.02,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.02,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0.17,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0.17,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-0.05,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2023-01-01","end":"2023-12-31","val":0.05,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0.15,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0.01,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxCreditsOther":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other tax credits.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount":{"label":"Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount","description":"Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":-393000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-94000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-94000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent":{"label":"Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent","description":"Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.","units":{"pure":[{"start":"2017-01-01","end":"2017-12-31","val":-0.14,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-0.02,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.02,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-0.09,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.09,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.09,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"}]}},"EffectiveIncomeTaxRateReconciliationTaxSettlementsForeign":{"label":"Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax settlement.","units":{"pure":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.05,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0.05,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0.47,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0.47,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0.47,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0.03,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.02,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount":{"label":"Share-based Payment Arrangement, Amount Capitalized","description":"Amount of cost capitalized for award under share-based payment arrangement.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":4000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"}]}},"EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions":{"label":"Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options (Deprecated 2017-01-31)","description":"Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":56000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":109000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":109000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":109000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":48000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"EmployeeServiceShareBasedCompensationEstimatedQuantityOfSharesToBeRepurchasedInFollowingPeriod":{"label":"Share-based Payment Arrangement, Shares Expected to be Repurchased, Next Fiscal Period","description":"Number of shares to be repurchased in accordance with a policy to use treasury stock to satisfy share-award conversions.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":823915,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":542786,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":542786,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":934099,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":934099,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":934099,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":936811,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":936811,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":936811,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":515558,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":515558,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":515558,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3294624,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3294624,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3294624,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3294624,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":474480,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":474480,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":474480,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":349122,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":349122,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":{"label":"Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount","description":"Amount of cost not yet recognized for nonvested award under share-based payment arrangement.","units":{"USD":[{"end":"2011-12-31","val":101000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":90000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition":{"label":"Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31)","description":"The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.","units":{"pure":[{"start":"2010-12-31","end":"2011-12-31","val":1.5,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense":{"label":"Share-based Payment Arrangement, Expense, Tax Benefit","description":"Amount of tax benefit for recognition of expense of award under share-based payment arrangement.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-36000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-41000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":41000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-45000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":45000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":45000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":42000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":42000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":36000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2014-01-01","end":"2014-12-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":31000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":31000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":4000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":5000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":4000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":5000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":4000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions":{"label":"Share-based Payment Arrangement, Exercise of Option, Tax Benefit","description":"Amount of tax benefit from exercise of option under share-based payment arrangement.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":9000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":9000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":9000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":13000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":13000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":13000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":4000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":4000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":5000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":5000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions":{"label":"Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)","description":"Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":78000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":21000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":21000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":50000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":50000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":50000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":45000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwards":{"label":"Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards (Deprecated 2011-01-31)","description":"As of the latest balance sheet date presented, the total compensation cost related to outstanding, nonvested equity-based compensation awards not yet recognized (will be charged against earnings as services are performed or other vesting criteria are met).","units":{"USD":[{"end":"2010-12-31","val":107000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition":{"label":"Employee Service Share-based Compensation, Unrecognized Compensation Costs on Nonvested Awards, Weighted Average Period of Recognition (Deprecated 2011-01-31)","description":"The weighted average period over which unrecognized equity-based compensation costs are expected to be reported.","units":{"pure":[{"start":"2009-12-31","end":"2010-12-31","val":1.6,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"}]}},"EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesAmount":{"label":"Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries, Amount (Deprecated 2011-01-31)","description":"Amount of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets located in foreign countries. An entity also may provide subtotals of geographic information about groups of countries; accordingly, this element also may be used to provide the amount of such long-lived assets for a group of countries.","units":{"USD":[{"end":"2008-12-31","val":17756000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":18090000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":19205000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"EnvironmentalRemediationExpense":{"label":"Environmental Remediation Expense","description":"The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":377000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":289000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":289000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":372000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":372000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":387000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2014-01-01","end":"2014-12-31","val":119000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":78000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":78000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":21000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":11000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":18000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":27000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":25000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":8000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-19000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-21000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":81000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":76000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":73000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":72000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":251000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":244000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":244000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":9000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":68000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":68000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":59000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":59000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":76000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":76000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":8000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":8000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":89000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":89000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":89000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":42000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":42000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":65000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":65000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":23000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":85000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":85000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":20000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":20000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":105000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":105000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":105000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":26000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":26000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":37000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":37000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":11000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":11000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":58000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":58000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":21000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":21000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":159000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":159000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":159000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":5000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":5000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":38000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":38000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":33000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":33000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":51000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":51000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":13000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":13000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":91000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":91000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":91000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":16000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":16000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":45000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":45000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":29000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":29000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":51000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":51000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":6000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":121000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":121000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":121000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":67000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":67000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":141000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":141000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":74000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":74000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":239000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":239000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":98000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":98000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":319000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":319000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":319000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":67000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":67000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":95000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":95000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":28000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":28000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":115000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":115000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":20000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":20000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":127000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":127000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":10000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":37000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":27000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":37000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":58000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EquityMethodInvestmentOwnershipPercentage":{"label":"Equity Method Investment, Ownership Percentage","description":"The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.","units":{"pure":[{"end":"2010-12-31","val":0.2,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0.2,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"EscrowDeposit":{"label":"Escrow Deposit","description":"The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.","units":{"USD":[{"end":"2015-03-31","val":115000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":125000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"}]}},"ExcessTaxBenefitFromShareBasedCompensationFinancingActivities":{"label":"Excess Tax Benefit from Share-based Compensation, Financing Activities","description":"Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":16000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":12000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":25000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":25000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":25000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":25000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":2000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":2000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":3000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":4000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":4000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":4000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":4000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":5000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":5000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":19000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":21000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":21000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":22000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":22000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":23000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-09-30","val":23000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":23000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":23000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-01-01","end":"2011-12-31","val":23000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":7000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":7000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"ExplorationExpense":{"label":"Exploration Expense","description":"\"Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or \"\"G&G\"\" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.\"","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":63000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-09-30","val":60000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":27000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":93000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":93000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":21000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":45000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":24000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":72000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":72000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":27000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":27000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":105000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":105000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":105000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":27000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":27000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":58000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":58000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":31000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":31000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":83000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":83000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":25000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":25000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":104000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":104000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":104000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":16000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":16000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":34000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":34000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":18000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":18000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":42000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":42000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":50000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":21000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":21000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":14000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":14000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":36000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":36000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":15000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":15000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":55000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":55000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":55000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":24000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":24000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":49000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":49000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":25000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":25000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":87000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":87000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":38000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":38000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":115000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":115000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":115000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":31000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":31000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":73000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":73000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":42000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":42000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":103000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":103000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":30000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":30000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":137000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":137000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":137000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":37000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":37000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":77000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":77000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":40000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":40000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":115000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":115000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":38000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":38000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":156000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":156000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":39000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":85000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":46000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":140000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":55000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":192000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ExplorationExpenseMining":{"label":"Exploration Expense, Mining (Deprecated 2018-01-31)","description":"Exploration expenses (including prospecting) related to the mining industry would be included in operating expenses. Exploration costs include costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of mineral reserves.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":106000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":107000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":107000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":18000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":33000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":46000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":13000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":64000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":64000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":15000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":14000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":34000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":19000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":19000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":61000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":27000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":94000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":21000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":45000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":24000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"}]}},"ExtensionsDiscoveriesAdditionsAndImprovedRecoveryLessRelatedCosts":{"label":"Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of extensions, discoveries and improved recovery of proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":752000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":752000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":752000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":752000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":194000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":194000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":194000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":194000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":45000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":45000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":45000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ExtinguishmentOfDebtAmount":{"label":"Extinguishment of Debt, Amount","description":"Gross amount of debt extinguished.","units":{"USD":[{"start":"2016-04-01","end":"2016-06-30","val":266000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":365000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"ExtinguishmentOfDebtGainLossNetOfTax":{"label":"Extinguishment of Debt, Gain (Loss), Net of Tax","description":"The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":-6000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q1"},{"start":"2011-04-01","end":"2011-06-30","val":-54000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-60000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":149000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":149000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":149000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":149000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":40000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":-40000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":-5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-12-31","val":28000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-28000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":-7000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":7000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":17000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":17000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":17000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-18000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-18000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":-18000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q1"},{"start":"2016-04-01","end":"2016-06-30","val":39000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q2"},{"start":"2016-07-01","end":"2016-09-30","val":15000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":-25000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4"},{"start":"2019-01-01","end":"2019-12-31","val":-26000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"ExtinguishmentOfDebtGainLossPerShareNetOfTax":{"label":"Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax","description":"Per share impact of the gain (loss) on the extinguishment of debt, net of applicable taxes.","units":{"USD/shares":[{"start":"2011-01-01","end":"2011-03-31","val":0.01,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q1"},{"start":"2011-04-01","end":"2011-06-30","val":0.06,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":0.06,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.16,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":0.16,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":0.16,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.16,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.04,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":-0.04,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":-0.01,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":0.01,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-12-31","val":0.03,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.03,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":-0.01,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":0.01,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-07-01","end":"2014-09-30","val":0.02,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":0.02,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-10-01","end":"2014-12-31","val":-0.02,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-0.02,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":-0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2016-04-01","end":"2016-06-30","val":0.03,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q2"},{"start":"2016-07-01","end":"2016-09-30","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":0.02,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":-0.02,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4"},{"start":"2019-01-01","end":"2019-12-31","val":-0.02,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"FairValueInputsDiscountRate":{"label":"Fair Value Inputs, Discount Rate (Deprecated 2018-01-31)","description":"Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.","units":{"pure":[{"start":"2013-01-01","end":"2013-06-30","val":0.1,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":0.1,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":0.1,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":0.1,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":0.1,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.1,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.1,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":0.1,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":0.1,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0.1,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0.1,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0.1,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0.1,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0.1,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings (Deprecated 2012-01-31)","description":"This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings","description":"Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncome":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) (Deprecated 2012-01-31)","description":"This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income (a separate component of shareholders' equity).","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-12-31","end":"2011-12-31","val":10000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)","description":"Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases","description":"Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":7000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":5000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":5000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales","description":"Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value","description":"Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.","units":{"USD":[{"end":"2009-12-31","val":65000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":65000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":74000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":74000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":74000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010Q4I"},{"end":"2011-12-31","val":85000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":85000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":85000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":86000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":86000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":86000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":90000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":90000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":90000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":90000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":93000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":93000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":93000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":97000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":97000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings":{"label":"Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings","description":"Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"}]}},"FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss":{"label":"Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss)","description":"Amount of gain (loss) recognized in other comprehensive income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":135000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements":{"label":"Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements","description":"Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"}]}},"FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs":{"label":"Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs","description":"Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":135000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"FederalIncomeTaxExpenseBenefitContinuingOperations":{"label":"Federal Income Tax Expense (Benefit), Continuing Operations","description":"Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":-5000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":-4000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":29000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":24000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":81000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-132000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":132000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":-51000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":51000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":205000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":205000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":73000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":73000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":138000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":138000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":258000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":258000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":120000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":120000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":421000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":421000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":163000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":163000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":83000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":83000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":193000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":193000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":110000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":110000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":291000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":291000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":98000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":98000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":71000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":76000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-23000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-19000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":-94000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-95000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":76000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":85000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":99000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":104000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":136000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":136000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":285000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":285000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":149000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":149000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":323000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":323000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":38000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":38000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":-835000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-835000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-835000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1664000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-1664000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-829000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-829000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-2020000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-2020000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-309000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-356000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":-11000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-11000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-11000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":38000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":38000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":49000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":49000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-293000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-293000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-331000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-331000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":7000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":7000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-22000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-22000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-29000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-29000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-24000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-24000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":-2000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":438000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-3000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-8000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-8000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":-5000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":6000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":22000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-2000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-2000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-20000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-20000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-73000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-73000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-03-31","val":-5000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-5000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-58000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-58000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":-56000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-56000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":7000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":7000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-03-31","val":3000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":3000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":5000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":5000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-03-31","val":-4000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-4000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-3000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-3000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-3000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-03-31","val":1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":4000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":4000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-30000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-30000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-03-31","val":-2000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-2000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":4000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"FeesAndCommissions":{"label":"Fees and Commissions (Deprecated 2018-01-31)","description":"Amount of fees and commissions from financial services and banking activities and correspondent clearing. Includes fees from depositor accounts, credit cards, merchant discounts, and fiduciary and trust activities, guarantee fees, investment advisory, management, and administrative fees, transfer agent fees, and insurance commissions.","units":{"USD":[{"start":"2015-01-01","end":"2015-09-30","val":10000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2016-01-01","end":"2016-01-05","val":20000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-01-05","val":20000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-01-05","val":20000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-01-05","val":20000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"start":"2016-07-01","end":"2016-09-30","val":4000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"FiniteLivedIntangibleAssetsAccumulatedAmortization":{"label":"Finite-Lived Intangible Assets, Accumulated Amortization","description":"Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2009-12-31","val":42000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":52000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":52000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":62000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":62000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":71000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":71000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":57000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":57000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":62000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":62000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":62000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":61000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":61000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":61000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":37000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":37000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":46000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":46000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":51000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":51000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":54000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":54000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":35000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":35000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":43000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":43000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":46000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":46000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ForeignCurrencyTransactionGainLossBeforeTax":{"label":"Foreign Currency Transaction Gain (Loss), before Tax","description":"Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-36000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-38000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-4000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-93000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-90000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-90000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-90000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":32000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":32000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":32000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-5000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-5000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":14000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":14000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":34000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":34000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":34000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":66000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":66000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":66000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":20000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":17000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":17000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":34000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ForeignIncomeTaxExpenseBenefitContinuingOperations":{"label":"Foreign Income Tax Expense (Benefit), Continuing Operations","description":"Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":-868000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":-538000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":1500000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":660000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":597000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-979000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":979000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":-382000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":382000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1800000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":1751000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":772000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":772000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":846000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":846000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1632000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":1632000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":786000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":786000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":2277000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":2277000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":645000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":645000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":408000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":408000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":720000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":720000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":312000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":312000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":837000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":837000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":117000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":117000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":357000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":352000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":491000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":487000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":134000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":135000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":891000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":882000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":400000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":395000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":221000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":221000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":400000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":400000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":179000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":179000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":711000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":711000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":311000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":311000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":140000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":140000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":121000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":282000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":251000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":142000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":130000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":278000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":258000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-51000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":7000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":81000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":88000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":88000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":155000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":155000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":67000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":67000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":372000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":372000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":167000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":167000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":382000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":382000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":215000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":215000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":771000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":771000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":389000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":389000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-03-31","val":509000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":509000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1029000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1029000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":520000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1545000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1545000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":516000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2019-01-01","end":"2019-03-31","val":107000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":107000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":110000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":110000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":254000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":254000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-03-31","val":-55000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-55000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":94000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":94000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":389000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":389000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-03-31","val":443000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":443000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1042000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1042000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":1667000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1667000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-03-31","val":821000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":821000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1390000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1390000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":1705000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1705000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-03-31","val":503000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":503000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1041000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1041000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":1549000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1549000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-03-31","val":511000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":511000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1262000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1262000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":2033000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":2033000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-03-31","val":502000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1352000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":2015000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesCashInflows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows","description":"Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.","units":{"USD":[{"end":"2013-12-31","val":38901000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":38901000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":38901000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":29504000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":29504000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":29504000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":29504000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10536000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":10536000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":10536000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":10536000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":345000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":345000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesDevelopmentCosts":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs","description":"Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves.","units":{"USD":[{"end":"2013-12-31","val":6480000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":6480000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":6480000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6448000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":6448000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":6448000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":6448000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4130000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4130000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4130000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":4130000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":439000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":439000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesIncomeTaxExpense":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense","description":"Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves.","units":{"USD":[{"end":"2013-12-31","val":4935000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":4935000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":4935000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2487000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2487000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2487000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":2487000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesNetCashFlows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows","description":"Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves.","units":{"USD":[{"end":"2013-12-31","val":14712000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":14712000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":14712000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9578000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":9578000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":9578000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":9578000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1638000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1638000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1638000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":1638000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-269000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":-269000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesProductionCosts":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs","description":"Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves.","units":{"USD":[{"end":"2013-12-31","val":12774000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":12774000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":12774000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":10991000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":10991000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":10991000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":10991000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4768000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4768000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4768000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":4768000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":175000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":175000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"FutureNetCashFlowsRelatingToProvedOilAndGasReservesTenPercentAnnualDiscountForEstimatedTimingOfCashFlows":{"label":"Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows","description":"Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of ten percent a year.","units":{"USD":[{"end":"2013-12-31","val":5295000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":5295000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":5295000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3157000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3157000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3157000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":3157000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":246000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":246000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":246000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":246000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-32000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":-32000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"GainLossOnContractTermination":{"label":"Gain (Loss) on Contract Termination","description":"Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":-612000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-694000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-606000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-705000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-689000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":33000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"}]}},"GainLossOnDerivativeInstrumentsNetPretax":{"label":"Gain (Loss) on Derivative Instruments, Net, Pretax","description":"Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-35000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":205000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-205000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-334000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-334000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-334000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-334000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-50000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-50000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-120000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-120000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-56000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-56000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":504000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":504000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":504000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":504000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":52000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":52000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":52000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":58000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":58000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":87000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":87000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":87000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":87000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":87000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":-35000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"GainLossOnDispositionOfAssets1":{"label":"Gain (Loss) on Disposition of Assets","description":"Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":46000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":46000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":46000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":46000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":46000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":46000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":46000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":717000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":717000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":717000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":717000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":671000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":671000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":671000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":39000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":39000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":39000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":39000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":39000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":39000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":39000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":39000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":39000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":749000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":749000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":749000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":749000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":13000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":749000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":749000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":762000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":762000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":13000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":13000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":13000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":649000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":-113000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":-113000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":23000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":33000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":10000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":10000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":10000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":66000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":33000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":33000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":33000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":33000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":81000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":81000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":81000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":15000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":56000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":56000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":45000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":45000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":45000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":45000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":126000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":126000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":70000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":70000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":70000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":70000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":208000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":208000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":208000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":82000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":82000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":25000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":25000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-8000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-8000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":13000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":13000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-12000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-12000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":417000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":417000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":417000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-11000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-11000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-11000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-11000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-13000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-13000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-2000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":473000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":473000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":473000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":3000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":3000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":3000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":63000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":63000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":60000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":60000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":80000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":80000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":80000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-06-30","val":2000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":2000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-09-30","val":16000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":16000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":16000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"GainLossOnSaleOfBusiness":{"label":"Gain (Loss) on Disposition of Business","description":"Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.","units":{"USD":[{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-06-30","val":-177000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-182000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"GainLossOnSaleOfOilAndGasProperty":{"label":"Gain (Loss) on Disposition of Oil and Gas Property","description":"Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties.","units":{"USD":[{"start":"2013-01-01","end":"2013-09-30","val":77000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":77000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"}]}},"GainLossRelatedToLitigationSettlement":{"label":"Gain (Loss) Related to Litigation Settlement","description":"Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":54000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-10-01","end":"2009-12-31","val":54000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"GainOnSaleOfInvestments":{"label":"Gain on Sale of Investments","description":"The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.","units":{"USD":[{"start":"2020-01-01","end":"2020-12-31","val":486000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":486000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":486000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"}]}},"GainsLossesOnExtinguishmentOfDebt":{"label":"Gain (Loss) on Extinguishment of Debt","description":"Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-173000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":-6000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":-6000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-6000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-6000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":-31000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-31000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":-31000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":-31000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":-31000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":-48000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-48000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-48000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":-17000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":-27000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":-27000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-27000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":-77000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":-77000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":-50000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":-50000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":-50000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-77000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":-77000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-81000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-81000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-81000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":-4000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":-7000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":-7000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":-7000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-06-30","val":-68000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-68000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-61000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":-61000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-68000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-68000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-68000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-68000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-68000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-168000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-168000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-168000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-168000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-168000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-168000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-168000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-168000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-168000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-45000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-45000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-45000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-45000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-45000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-45000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-35000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":5000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":5000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":5000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":5000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":63000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":63000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":58000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":58000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":73000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":73000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":73000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":73000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":36000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":36000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":39000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":39000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":51000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":51000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-04-01","end":"2016-09-30","val":54000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":15000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":15000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":26000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-4000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":8000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":8000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":11000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":11000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":21000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":21000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":21000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":8000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":8000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":9000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":9000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":8000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":8000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":7000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-6000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-6000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-6000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-6000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-21000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-21000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-27000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-27000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-27000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-32000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-32000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-41000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-41000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":-9000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":-9000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-100000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-100000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-59000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-59000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":-101000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-101000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-101000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-06-30","val":8000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":8000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":8000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":8000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":28000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":28000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":20000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":20000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":5000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":5000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":10000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":10000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":5000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":10000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":10000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":10000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"Goodwill":{"label":"Goodwill","description":"Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-06-03","val":1904000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":1932000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-06-30","val":1904000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1932000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":1916000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1916000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1717000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2014-06-30","val":1938000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-06-30","val":1938000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-06-30","val":1938000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1717000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"}]}},"GoodwillAcquiredDuringPeriod":{"label":"Goodwill, Acquired During Period","description":"Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":1900000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013"}]}},"GoodwillImpairmentLoss":{"label":"Goodwill, Impairment Loss","description":"Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":5987000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":5987000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1717000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1717000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1717000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1717000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"GoodwillImpairmentLossNetOfTax":{"label":"Goodwill, Impairment Loss, Net of Tax","description":"Amount after tax of loss recognized that results from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":1700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"}]}},"GoodwillPurchaseAccountingAdjustments":{"label":"Goodwill, Purchase Accounting Adjustments","description":"Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":22000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"}]}},"GoodwillWrittenOffRelatedToSaleOfBusinessUnit":{"label":"Goodwill, Written off Related to Sale of Business Unit","description":"Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":221000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"}]}},"ImpairmentOfIntangibleAssetsFinitelived":{"label":"Impairment of Intangible Assets, Finite-lived","description":"The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":119000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"}]}},"ImpairmentOfLongLivedAssetsHeldForUse":{"label":"Impairment of Long-Lived Assets Held-for-use","description":"The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":10867000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"}]}},"ImpairmentOfOilAndGasProperties":{"label":"Impairment of Oil and Gas Properties","description":"The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":308000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":308000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":308000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":308000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":308000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":308000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":308000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":3737000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":3737000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3737000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":3737000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":3400000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":3400000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":3400000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":3104000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":3100000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":3104000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":3104000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":3100000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":3100000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5790000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":5790000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":2686000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":2700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":2686000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":2700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":2700000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":9442000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":9442000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3652000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":3700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":3700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3652000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3700000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":13144000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":13144000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":13144000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":13144000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":3700000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":3700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":3700000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":3787000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":3787000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":3800000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":3787000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":3800000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":4078000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":4078000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":291000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":291000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":291000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":300000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":4317000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":4317000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":239000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":239000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":239000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":200000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":4317000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":4317000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":4317000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":67000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":67000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":67000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":69000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":69000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":64000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperations":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent","description":"Amount after tax of income (loss) from continuing operations attributable to the parent.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":2455000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-1423000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1423000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2492000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4346000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1857000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-8185000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3842000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12251000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12251000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12251000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-4173000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4173000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4459000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4459000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-289000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-289000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4214000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4214000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":242000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":242000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-3901000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-3901000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-3901000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":190000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":190000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":450000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":450000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":257000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":257000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":727000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":727000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":274000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":274000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1751000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1751000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1751000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":699000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":699000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1572000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1572000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":870000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":870000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2131000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2131000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2613000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2613000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2613000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":27000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":27000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-45000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-45000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-75000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-75000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-253000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-253000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-211000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-211000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-245000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-245000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-245000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-494000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-441000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":50000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-112000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":326000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":596000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":596000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":4299000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from continuing operations attributable to the noncontrolling interest.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":576000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":358000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":358000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":32000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":48000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":16000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":61000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":13000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":27000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":27000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":27000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":62000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":62000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":109000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":109000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":47000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":47000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":146000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":146000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":37000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":37000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":227000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":227000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":227000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":75000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":75000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":141000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":141000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":66000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":66000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":106000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":106000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":-35000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-35000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":274000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":274000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":274000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":125000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":125000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":291000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":291000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":108000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":108000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":43000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":43000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-2000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":50000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":50000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-58000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":13000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":71000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":116000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":103000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":266000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":266000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":266000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":235000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-12-31","val":1059000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1059000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1059000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":377000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2510000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2510000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1948000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Domestic","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-13850000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":98000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":98000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":1307000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":1307000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1307000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":2112000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2112000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":2112000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1539000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1539000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1539000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1104000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1104000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1104000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1119000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-2997000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-2997000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2973000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2973000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-14617000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-14589000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-14589000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-14589000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-5179000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-5179000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-5179000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":20000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":20000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":390000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":390000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":390000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-287000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-287000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-287000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-40000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-40000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-40000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1861000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1861000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1861000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":68000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":68000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":68000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-547000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-547000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":405000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Foreign","description":"The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":541000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":5718000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":5718000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":7205000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":7205000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":7205000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":6706000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6706000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":6706000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3948000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3948000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3948000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3809000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3809000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3809000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3271000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2573000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2573000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2173000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":2173000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":596000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":461000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":461000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":461000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1707000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1707000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1707000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":5300000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-12-31","val":2882000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2882000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2882000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3502000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3502000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3502000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":593000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":593000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":593000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1837000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1837000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1837000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":5798000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5798000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5798000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":5875000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":5875000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":5875000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":5938000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":5938000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":5938000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":7454000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":7454000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":5967000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":6111000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":2227000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":4162000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":1935000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":5142000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":980000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-13309000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-13309000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":527000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":527000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":1874000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":1874000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":1347000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":1347000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":3758000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":3758000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1884000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":1884000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":5816000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":5816000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":5816000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":1888000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1888000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":3149000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":3149000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":1261000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":1261000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":5526000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":5526000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2377000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":2377000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":8512000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":8512000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":8512000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":2841000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2841000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5465000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":5465000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":2624000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":2624000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":7565000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":7565000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2100000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2100000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":8818000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":8818000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":8818000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":1490000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":1490000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2809000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":2809000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1319000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1319000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4163000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":4163000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1354000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1354000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":5487000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":5487000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":5487000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":1250000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":1250000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1898000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1898000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":648000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":648000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3446000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3446000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1548000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1548000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":4913000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4913000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4913000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":4390000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":983000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":983000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1969000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1969000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":986000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":986000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3024000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":3024000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1055000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1055000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-424000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-424000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-800000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-800000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-3102000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-3102000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-3162000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-5588000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-5689000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-2486000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-2527000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-9736000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-9851000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-4148000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-4162000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-14021000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-14128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-14128000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-14128000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-4038000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4027000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4027000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4141000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4141000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-114000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-114000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3964000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-3964000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":177000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":177000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-3472000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-3472000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-3472000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":438000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":438000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":951000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":951000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":513000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":513000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1577000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1577000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":626000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":626000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2902000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2902000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2902000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1336000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1336000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2887000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":2887000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1551000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1551000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":4073000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":4073000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1186000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1186000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":3892000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3892000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3892000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":183000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":183000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":89000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":89000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-94000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-94000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-60000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-60000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-149000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-149000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-612000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-612000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-395000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-395000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":217000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":217000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":328000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":328000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":723000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":723000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":1797000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1797000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1797000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1398000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1398000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":3326000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":3326000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1928000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1928000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":5686000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":5686000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":2360000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":2360000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":7659000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7659000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7659000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":2713000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":2713000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":4312000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":4312000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1599000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1599000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":5179000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":5179000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":867000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":867000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":6715000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":6715000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":6715000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1538000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1538000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":2806000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":2806000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1268000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1268000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":4278000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":4278000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1472000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1472000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":6006000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":6006000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":6006000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1674000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1674000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":3704000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":3704000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":2030000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":2030000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":5667000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":5667000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1963000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1963000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":6907000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":6907000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1291000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":3682000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":2391000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":5606000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1924000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":6372000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":3733000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-10450000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":3534000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2013-01-01","end":"2013-12-31","val":3053000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":565000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":582000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":634000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1022000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1022000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2803000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2447000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2447000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2447000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4275000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1828000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1828000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-1828000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-8090000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3815000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3815000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3815000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12180000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12180000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12180000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-4090000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-4090000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-4097000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4097000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-4097000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-4097000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4326000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4326000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-229000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-229000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-229000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-229000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4034000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4034000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":292000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":292000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":292000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":292000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-3832000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-3832000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-3832000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":202000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":202000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":268000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":268000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":268000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":268000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":594000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":594000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":326000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":326000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":326000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":326000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":836000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":836000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":242000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":242000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":242000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":242000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2029000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2029000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2029000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1193000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1193000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":828000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1867000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1867000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1039000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1039000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":1039000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1039000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2535000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2535000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":668000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":668000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":668000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":668000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2909000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2909000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2909000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":374000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":374000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":75000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":75000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":75000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-234000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-234000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-235000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-235000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-235000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-192000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-192000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-192000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":42000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-549000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-549000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-425000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-425000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":124000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":124000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":7000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":7000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":432000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":432000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":953000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":953000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":2284000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":2284000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1331000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1331000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":4007000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":4007000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1723000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1723000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1904000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1904000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2942000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2942000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1038000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1038000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":3502000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":3502000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":560000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":560000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1049000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1049000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1780000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1780000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":731000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":731000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":2744000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":2744000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":3678000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":3678000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1236000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1236000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":4399000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":4399000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":793000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2340000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1547000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":3587000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1247000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":4152000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsPerBasicAndDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Basic and Diluted Share","description":"The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.","units":{"USD/shares":[{"start":"2014-01-01","end":"2014-03-31","val":0.46,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":0.43,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":0.51,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1.37,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1.37,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2.78,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2.4,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2.4,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2.4,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":-3.59,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3.59,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-11.32,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-11.32,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-11.32,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-3.46,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-3.46,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-3.34,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-3.34,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-3.34,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-3.34,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-3.54,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.23,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-0.23,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.23,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3.27,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":0.18,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":0.18,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":0.18,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-2.96,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-2.96,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":0.22,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":0.22,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":0.13,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0.13,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.31,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.5,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"}]}},"IncomeLossFromContinuingOperationsPerBasicShare":{"label":"Income (Loss) from Continuing Operations, Per Basic Share","description":"The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":8.02,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-29.72,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":6.1,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2013-01-01","end":"2013-12-31","val":2.45,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-1.37,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-11.32,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-2.96,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.13,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.31,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.5,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.71,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":0.71,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1.08,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1.08,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.6,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1.47,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1.47,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1.8,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1.8,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1.8,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":0.02,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-0.34,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-0.3,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0.03,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-0.08,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0.22,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":2.93,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2.93,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2.93,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":2.4,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2.4,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2.4,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1.31,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1.31,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1.53,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromContinuingOperationsPerDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Diluted Share","description":"The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":7.41,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-29.72,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":5.86,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2013-01-01","end":"2013-12-31","val":2.44,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-1.37,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":-4.18,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1.78,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-7.8,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3.59,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-11.32,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":-3.54,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-0.23,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3.27,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0.18,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-2.96,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.13,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":0.13,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.31,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0.18,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.5,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0.19,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1.21,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.7,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":0.7,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":0.48,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1.08,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1.08,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0.59,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1.46,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1.46,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0.38,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1.79,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0.33,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-06-30","val":-0.03,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-0.05,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-0.17,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-0.15,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-0.17,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0.41,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":2.9,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2.9,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2.9,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":2.39,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2.39,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2.39,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1.28,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1.3,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1.3,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1.52,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTax":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":46000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2013-01-01","end":"2013-12-31","val":388000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":61000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":78000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":70000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":277000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":277000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":68000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":41000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":41000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":70000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":29000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":29000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":29000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":95000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":25000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":25000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":25000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":91000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":91000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":91000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-4000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-4000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-185000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-185000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-181000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-181000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-181000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-181000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-191000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-191000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-6000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":-6000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-193000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-193000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-193000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":-2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":-2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":38000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":38000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":38000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":38000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":47000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":47000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":9000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":9000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":9000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":9000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":50000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":50000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":66000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":66000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":66000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":16000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":16000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToNoncontrollingInterest":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":185000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":34000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":45000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":48000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":165000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":165000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":38000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":26000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":26000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":52000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":26000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":26000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":68000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":16000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":79000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":79000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":79000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":11000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":22000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":22000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":44000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":44000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":22000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":22000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":22000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":22000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":63000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":63000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":63000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":19000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":19000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":4000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent","description":"Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":203000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":112000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":112000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":15000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":18000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":27000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":9000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-14000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-14000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-207000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-207000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-193000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-193000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-235000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-235000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-28000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-28000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-256000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-256000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-256000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":35000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":35000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":43000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":43000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":8000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":8000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":46000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":46000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":62000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":62000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":62000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-15000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":-4000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-4000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-15000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share","description":"Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.","units":{"USD/shares":[{"start":"2014-01-01","end":"2014-03-31","val":0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.11,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0.11,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":0.03,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":0.02,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":0.02,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-0.01,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-0.16,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.15,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-0.15,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-0.15,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-0.18,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-0.02,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-0.2,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-0.2,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":-0.01,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":-0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":0.03,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0.03,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":0.03,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0.03,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.03,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0.04,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.01,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":0.1,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2017-01-01","end":"2017-12-31","val":0.04,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":-0.01,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-0.01,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2007-01-01","end":"2007-12-31","val":0.09,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2016-01-01","end":"2016-12-31","val":-0.2,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0.03,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0.04,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0.04,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-0.01,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-0.01,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-0.01,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"}]}},"IncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Equity Method Investments","description":"Amount of income (loss) for proportionate share of equity method investee's income (loss).","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":22000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":7000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":14000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":7000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":16000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":2000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":15000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":15000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":11000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":11000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":18000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":18000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":7000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":7000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":21000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":21000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":3000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":3000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":25000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":25000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":25000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":5000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":5000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":4000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":4000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":10000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":10000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":15000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":4000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":4000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":12000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":12000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":8000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":8000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":14000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":14000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":16000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":2000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":2000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":-3000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":2000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":2000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":-1000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":2000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":2000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":2000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-2000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":7000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":7000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":7000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":8000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":8000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":9000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":9000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":1000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":1000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":11000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":11000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":6000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":6000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-2000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":3000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":5000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":4000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-3000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":2000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":5000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":5000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":7000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":7000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":5000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":3000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":3000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":6000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":6000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":3000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":12000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":12000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":6000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":6000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":12000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":12000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-2000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-2000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":6000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":6000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-5000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-5000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":-9000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":-9000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":15000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":15000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":25000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":25000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":10000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":10000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":33000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":33000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":8000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":8000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":31000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":10000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":10000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":12000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":12000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":2000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":12000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":12000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":15000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":15000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":15000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":4000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":4000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":4000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":4000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":14000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":14000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":10000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":10000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":15000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":15000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":2000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":8000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":-8000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxCreditsAndAdjustments":{"label":"Income Tax Credits and Adjustments","description":"A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.","units":{"USD":[{"start":"2016-01-01","end":"2016-06-30","val":-36000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2018-01-01","end":"2018-12-31","val":632000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2022-01-01","end":"2022-09-30","val":31000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2025-01-01","end":"2025-12-31","val":27000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority":{"label":"Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority","description":"The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.","units":{"USD":[{"end":"2018-06-30","val":-5000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":-5000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2019-06-30","val":-5000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":24000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"}]}},"IncomeTaxExpenseBenefit":{"label":"Income Tax Expense (Benefit)","description":"Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":2400000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-729000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":1387000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":658000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":1627000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":240000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-2844000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-2844000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-331000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":331000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":873000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":873000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":542000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":542000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":1557000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":1557000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":684000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":684000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":2307000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2307000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":2307000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":678000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":678000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":1111000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1111000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":433000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":433000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1956000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":1956000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":845000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":845000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":2983000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2983000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2983000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":984000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":984000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1890000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":1890000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":906000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":906000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":2698000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":2698000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":808000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":808000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":3087000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3087000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":3087000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":491000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":491000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":913000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":913000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":422000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":422000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1128000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":1128000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":215000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":215000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1510000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1510000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1510000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":428000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":428000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":468000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":468000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":40000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":40000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":967000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":967000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":499000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":499000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1475000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1475000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1475000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1340000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":357000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":357000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":685000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":685000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":328000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":328000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1034000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1034000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":349000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":349000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":324000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":324000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":225000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":225000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-695000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-695000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-714000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1382000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-1413000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-687000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-699000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-1742000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-1762000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-360000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-349000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-1935000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-1951000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-1951000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-1951000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":70000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":77000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":77000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":193000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":193000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":116000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":116000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":79000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":79000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-114000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-114000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":371000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":371000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":371000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":174000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":174000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":360000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":360000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":186000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":186000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":747000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":747000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":387000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":387000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":883000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":883000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":883000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":506000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":506000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1021000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1021000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":515000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":515000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1543000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1543000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":522000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":522000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":991000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":991000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":991000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":105000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":105000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":90000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":90000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-15000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-15000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":181000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":181000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":91000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":91000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":510000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":510000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":510000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-60000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-60000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":36000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":36000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":96000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":96000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":333000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":333000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":297000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":297000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":944000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":944000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":944000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":443000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":443000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1046000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1046000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":603000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":603000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":1674000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1674000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":628000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":628000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":2299000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2299000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2299000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":824000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":824000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1395000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1395000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":571000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":571000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1710000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1710000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":315000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":315000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":2267000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":2267000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":2267000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":499000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":499000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1038000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1038000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":539000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":539000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1546000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1546000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":508000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":508000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":2270000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2270000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2270000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":512000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":512000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1266000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1266000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":754000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":754000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":2003000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":2003000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":737000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":737000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":2523000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2523000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":500000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1350000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":850000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":2019000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":669000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2221000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability":{"label":"Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability","description":"Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":76000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":76000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":76000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-76000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":76000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":76000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-164000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-164000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":54000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":54000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":54000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":54000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-333000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2019-01-01","end":"2019-06-30","val":-18000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"}]}},"IncomeTaxesPaid":{"label":"Income Taxes Paid","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":2700000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":1600000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":1600000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2600000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2600000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2600000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":3400000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3400000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":3400000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1800000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1800000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1800000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1300000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1300000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1300000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1300000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1500000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1500000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1500000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1500000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":900000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":893000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":893000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":893000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":203000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":203000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":203000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":702000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":702000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":702000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":2000000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2000000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2000000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":610000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":610000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":610000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":397000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":397000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":397000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1300000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1300000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1300000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3100000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":3100000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":3100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":2100000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2800000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxesReceivable":{"label":"Income Taxes Receivable, Current","description":"Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.","units":{"USD":[{"end":"2008-12-31","val":611000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":611000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-09-30","val":390000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":139000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":139000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":98000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":70000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":436000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":436000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":419000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":695000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1322000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1322000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1275000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1414000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1414000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":1341000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1341000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1341000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1341000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1332000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1182000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":1099000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":916000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":865000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":879000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":879000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":879000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":879000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":879000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":665000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":632000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":522000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":325000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":325000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":325000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":325000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":343000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":222000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":225000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":226000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":493000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":493000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":493000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":493000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":493000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":410000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":245000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":263000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":426000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":426000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":426000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":426000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":426000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":591000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":646000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":464000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":520000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":520000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":520000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":520000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":520000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":522000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":578000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":591000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":574000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":574000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":574000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":574000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":574000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":444000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":435000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":485000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":459000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":459000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":459000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":459000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":459000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":550000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":417000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":488000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":455000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":455000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":455000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q4I"},{"end":"2024-03-31","val":744000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":428000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"}]}},"IncomeTaxesReceivableNoncurrent":{"label":"Income Taxes Receivable, Noncurrent","description":"Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":295000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":295000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":339000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":317000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":77000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":77000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":63000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":63000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":63000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":280000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":252000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":261000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":445000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":445000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":290000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":290000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":106000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":106000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":84000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":84000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":54000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":54000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":70000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":70000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":43000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":306000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":810000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":359000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":104000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":104000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":18000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":18000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":18000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-47000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-47000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-47000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-9000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-9000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":190000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-190000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":-190000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":190000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-190000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-190000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-190000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-190000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":190000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":190000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-2964000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-2955000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2955000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":2955000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1680000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1680000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1680000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-28000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-28000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-28000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-129000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-129000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":149000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":149000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":149000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":210000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":210000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":210000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-221000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-221000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-326000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-6000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-28000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-65000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-128000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-119000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-128000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-898000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-861000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationChangeInEnactedTaxRate":{"label":"Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationDispositionOfAssets":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount","description":"Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.","units":{"USD":[{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":135000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":135000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":135000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"}]}},"IncomeTaxReconciliationDispositionOfBusiness":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Business, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the disposition of a business not qualifying as a discontinued operation.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":15000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":15000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":15000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-53000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2024-01-01","end":"2024-03-31","val":182000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":182000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":182000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":182000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":182000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":182000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"IncomeTaxReconciliationForeignIncomeTaxRateDifferential":{"label":"Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":4000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":228000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":228000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":174000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":174000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":174000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":170000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":170000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":170000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-221000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-221000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-204000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":83000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-223000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":223000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":150000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-135000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":135000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":69000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-69000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":56000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-17000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-17000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":494000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":494000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":494000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":109000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":109000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":109000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":328000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":328000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":328000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":314000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":314000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":314000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":313000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":313000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":373000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount","description":"The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-4658000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":2036000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2036000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2979000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2979000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2979000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":3086000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3086000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":3086000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1920000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1920000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1920000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1720000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1720000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1720000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1536000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-149000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":149000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":280000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-280000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":4907000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":4945000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-4945000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-4945000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-1215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-1215000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-1215000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1016000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1016000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1016000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":817000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":817000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":817000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":64000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":377000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":377000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":377000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1608000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1608000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1608000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1410000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1410000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1410000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1261000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1261000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1261000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1450000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1450000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":1338000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpense":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":31000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":25000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":25000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":21000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":29000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":29000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-06-30","val":142000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":142000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":142000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":142000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":68000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":68000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxReconciliationNondeductibleExpenseDepletion":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depletion, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible depletion.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-336000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-168000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-168000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-263000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-263000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-263000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-283000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-283000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-283000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-263000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-263000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-263000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-223000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-223000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":223000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":223000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-263000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":263000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":263000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-263000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":186000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":186000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-186000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-186000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-211000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-211000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-211000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-227000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-227000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-227000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-141000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-141000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-141000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-118000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-118000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-118000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-104000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-104000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-104000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-221000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-221000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-221000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-189000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-189000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-189000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-183000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-183000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-204000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-123000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-88000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-210000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":2095000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":601000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-601000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-601000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":601000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"IncomeTaxReconciliationNondeductibleExpenseOther":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-16000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2023-01-01","end":"2023-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":9000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":13000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible restructuring charges.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-520000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-520000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-520000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"}]}},"IncomeTaxReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-22000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-79000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-79000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":37000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":23000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":23000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-28000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":102000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":41000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":41000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":41000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":41000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":41000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":111000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":111000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":90000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-21000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-21000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":12000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxReconciliationOtherReconcilingItems":{"label":"Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":34000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-35000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-35000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-35000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-44000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-44000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-44000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-11000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-8000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-20000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":20000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":22000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":66000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":79000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"IncomeTaxReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":20000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":7000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-09-30","val":21000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-12-31","val":15000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":15000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":15000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-13000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-13000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-13000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":17000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":17000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":17000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxReconciliationRepatriationOfForeignEarnings":{"label":"Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":-17000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":306000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-306000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":306000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":161000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-161000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":161000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":161000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-193000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":193000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":193000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":193000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":93000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":93000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":93000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":216000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":216000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":216000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":232000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":232000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":232000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":193000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":193000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":193000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":678000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":678000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":678000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":673000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":673000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":673000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":615000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":615000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":753000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncomeTaxReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-437000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":17000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":17000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":17000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":17000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":17000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":17000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-43000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-43000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":43000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":43000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-115000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":115000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":116000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-116000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":105000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":105000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-105000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-105000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-46000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-46000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-46000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-7000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-16000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-16000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-16000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":14000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":14000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-3000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":52000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-9000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationTaxCreditsForeign":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign tax credit.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":112000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":112000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":93000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":93000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":93000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":163000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":163000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":163000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":117000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":117000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":117000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":96000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":167000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":167000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":136000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-136000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":228000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":228000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-228000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-228000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-598000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-598000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-159000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2023-01-01","end":"2023-12-31","val":287000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1043000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":32000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationTaxSettlementsForeign":{"label":"Effective Income Tax Rate Reconciliation, Tax Settlement, Foreign, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax settlement.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":55000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":145000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":145000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":145000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":193000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":193000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":193000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-185000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"IncreaseDecreaseInAccountsPayableAndAccruedLiabilities":{"label":"Increase (Decrease) in Accounts Payable and Accrued Liabilities","description":"The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":400000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-505000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-525000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-152000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-171000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-171000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-731000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-731000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":-675000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":-675000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-518000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-518000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":-438000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-438000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-438000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-17000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-17000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-161000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":-161000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":156000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":156000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":331000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":331000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":331000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-264000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":-264000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-184000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-184000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-101000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-101000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":-387000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-387000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-387000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-64000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-64000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-117000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-117000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":78000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":78000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":209000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":209000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":209000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-201000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-201000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-371000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-371000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-596000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-596000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-359000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-359000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-359000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-359000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-362000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-362000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-186000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-186000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-379000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-379000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-394000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-394000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-394000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-394000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-402000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-402000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-402000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-205000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-205000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-150000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-150000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-217000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-217000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-217000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-217000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":9000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":9000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":9000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":44000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":44000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-80000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-80000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-28000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-28000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-28000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-433000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-433000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-267000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-267000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":-93000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-93000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":110000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":110000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":110000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-96000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-96000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":114000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":114000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-106000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-106000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-106000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-247000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-247000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":9000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":9000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-45000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-45000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-149000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-149000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-73000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-73000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":40000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":40000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":115000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":115000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":115000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-42000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-42000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":272000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":272000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":123000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":123000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":495000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":495000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":487000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-519000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-519000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":185000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":185000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":84000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":84000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-73000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-73000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-303000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-288000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-231000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-203000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-180000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-151000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-161000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-161000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-161000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-160000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-160000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":103000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":103000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-79000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-79000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":143000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":143000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":2000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":428000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":283000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":802000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncreaseDecreaseInAccountsReceivable":{"label":"Increase (Decrease) in Accounts Receivable","description":"The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":428000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-950000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-921000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-198000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":542000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":542000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":-455000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":-455000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":-803000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":-803000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":-754000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":-754000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":962000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":-962000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":-962000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":33000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":33000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":-502000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":502000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":391000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":-391000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":680000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":-680000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":-511000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":511000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":-577000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":-1034000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-1246000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":482000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"IncreaseDecreaseInAccruedIncomeTaxesPayable":{"label":"Increase (Decrease) in Income Taxes Payable","description":"The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":24000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":216000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-212000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-424000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-767000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":-767000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":249000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":249000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":394000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":394000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":913000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":913000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":702000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":702000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":702000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":379000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":379000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":-186000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":-92000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":132000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":132000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":132000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":138000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2010-12-31","end":"2011-12-31","val":-832000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-832000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-456000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"IncreaseDecreaseInAccruedTaxesPayable":{"label":"Increase (Decrease) in Accrued Taxes Payable","description":"The increase (decrease) during the reporting period of all taxes owed but not paid, including income, property and other taxes.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-186000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-92000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-03-31","val":138000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-429000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-429000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-641000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-641000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":-832000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":34000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":34000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-304000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-304000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":-400000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-400000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-456000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-456000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-72000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-72000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-40000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-40000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":195000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":195000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":195000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":195000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-16000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-16000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-153000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-153000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-227000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-227000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-204000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-204000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-204000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-204000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-123000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-123000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-123000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-485000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-485000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-568000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-568000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-699000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-699000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-699000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-665000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":40000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":40000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":40000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":26000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":26000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":155000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":175000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":106000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":136000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":136000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":136000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":147000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":103000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":124000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":399000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":393000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":473000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":457000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":457000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":123000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":123000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-148000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-148000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-131000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-131000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-472000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-634000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-634000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-62000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-62000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-245000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-245000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-285000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-130000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-29000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-2000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-2000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-33000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-33000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":105000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":105000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":403000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":403000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":403000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":286000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":286000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":505000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":505000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":849000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":849000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":1451000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1451000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1451000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-136000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-136000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-1071000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-1071000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":-1265000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-1265000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":-999000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-999000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-999000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":156000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":156000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-208000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-208000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-352000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-352000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":17000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":17000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":17000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":579000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":579000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":101000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":101000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":282000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":282000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":47000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":47000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":35000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-404000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-293000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":-855000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncreaseDecreaseInEstimatedFutureDevelopmentCosts":{"label":"Changes in Estimated Future Development Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in estimated future development costs.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-1190000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":-1190000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":-1190000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":-1190000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-498000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-498000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-498000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-498000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1287000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1287000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1287000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1287000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":146000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":146000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"IncreaseDecreaseInFutureIncomeTaxExpenseEstimatesOnFutureCashFlowsRelatedToProvedOilAndGasReserves":{"label":"Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in the estimated future income tax on future pretax net cash flows related to the entity's proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-3226000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":-3226000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":-3226000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":-3226000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1505000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1505000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1505000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1505000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1721000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1721000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1721000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1721000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"IncreaseDecreaseInInventories":{"label":"Increase (Decrease) in Inventories","description":"The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":272000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-81000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-374000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-567000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-478000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-478000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-35000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-35000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":53000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":53000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-176000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-176000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":-159000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":159000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-159000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-113000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-113000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-39000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":39000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-189000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":189000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-593000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":593000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":593000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-253000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":253000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":346000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":346000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":266000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":266000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":431000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":431000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":431000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":248000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":248000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":160000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":160000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":581000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":581000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":160000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":160000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":66000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":66000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":288000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":288000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":288000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":288000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":180000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":180000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":230000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":230000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":267000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":267000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":249000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":249000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":249000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":249000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-165000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-165000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-165000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-8000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-8000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-83000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-83000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-379000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-379000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-379000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-379000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-114000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-114000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-114000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-190000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-190000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-251000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-251000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-117000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-117000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-117000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":135000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":135000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":101000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":101000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":314000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":314000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":393000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":393000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":169000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":142000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":142000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":468000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":468000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":326000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":326000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":631000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":537000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":537000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-221000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-192000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-287000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-254000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-229000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-224000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-259000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-259000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-259000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-154000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-154000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-168000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-168000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":-59000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-59000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":-42000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-42000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-42000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":225000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":225000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":299000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":299000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":310000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":310000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":618000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":618000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":618000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-47000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-47000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":40000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":40000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":184000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":184000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":573000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":573000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":573000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":457000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":457000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":530000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":530000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":738000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":738000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":873000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":873000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":873000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-66000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-66000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":341000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":341000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":301000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":301000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":638000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":638000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":143000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":62000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":113000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":709000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncreaseDecreaseInOperatingAssets":{"label":"Increase (Decrease) in Operating Assets","description":"The increase (decrease) during the reporting period in the aggregate amount of assets used to generate operating income.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":-248000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":-147000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"IncreaseDecreaseInOperatingCapital":{"label":"Increase (Decrease) in Operating Capital","description":"The increase (decrease) during the reporting period of all assets and liabilities used in operating activities.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":-195000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-489000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-377000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-377000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-377000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-377000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-413000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-413000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-777000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-777000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-699000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-699000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-632000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-632000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":632000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":632000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-86000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-86000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-86000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-190000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-190000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":342000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":342000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":373000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-373000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-373000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":188000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":188000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":466000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":463000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":-57000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"IncreaseDecreaseInOperatingLiabilities":{"label":"Increase (Decrease) in Operating Liabilities","description":"The increase (decrease) during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":-443000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":-636000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"IncreaseDecreaseInOtherCurrentAssets":{"label":"Increase (Decrease) in Other Current Assets","description":"Amount of increase (decrease) in current assets classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":24000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":152000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-40000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":11000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":11000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":33000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":33000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":76000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":76000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":76000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":48000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":48000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-58000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-58000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-162000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-162000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-26000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-26000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-26000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-26000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":34000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":34000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-35000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-35000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":26000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":26000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":42000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":42000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":42000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":13000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":13000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-97000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-97000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-97000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-97000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":68000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":68000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":68000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":53000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":53000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":120000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":120000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-37000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-37000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-37000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":13000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":13000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":17000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":17000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":28000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":28000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":28000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":42000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":42000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":20000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":20000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":16000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":16000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":28000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":28000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":28000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-42000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-42000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":26000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-15000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-15000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-60000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":89000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":89000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":4000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":17000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":17000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":27000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":27000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":27000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-6000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-6000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":12000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":12000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":77000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":77000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":101000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":101000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":101000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-19000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-19000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":99000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":99000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":71000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":71000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":20000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":20000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":17000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":17000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-7000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-7000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":29000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":29000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":29000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-21000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-21000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":24000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":24000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":41000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":-24000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-16000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-46000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":55000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet":{"label":"Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net","description":"Amount of increase (decrease) in noncurrent operating assets after deduction of noncurrent operating liabilities classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-193000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":32000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":26000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":126000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":126000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-8000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-17000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-17000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":-71000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-71000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-128000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-128000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-36000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-36000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-38000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-65000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-97000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-162000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-91000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-88000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-88000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":52000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":33000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-36000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-77000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-106000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-106000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-17000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-37000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-33000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-33000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-104000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-81000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-144000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-40000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-43000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-43000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-53000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-48000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"IncreaseDecreaseInOtherOperatingAssets":{"label":"Increase (Decrease) in Other Operating Assets","description":"Amount of increase (decrease) in operating assets classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":21000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":1000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":9000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-58000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-91000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":-91000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":77000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":77000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":105000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":105000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":88000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":88000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":-87000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":87000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":87000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-2000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":-2000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":-9000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":13000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":-13000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":24000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":-24000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":18000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":-18000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":152000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":57000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-40000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"IncreaseDecreaseInOtherOperatingCapitalNet":{"label":"Increase (Decrease) in Other Operating Assets and Liabilities, Net","description":"Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":-16000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":34000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2013-01-01","end":"2013-06-30","val":150000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":181000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":150000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":150000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":72000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":72000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":72000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-72000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":28000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":28000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":14000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":14000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":3000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-1802000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1802000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1802000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1802000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":781000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":781000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":781000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1379000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1379000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":1812000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":1812000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-2215000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2215000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-2215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-151000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-151000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-215000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-31000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":741000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"IncreaseDecreaseInReceivables":{"label":"Increase (Decrease) in Receivables","description":"The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":680000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":-577000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-1034000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":-1246000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-1246000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":482000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":182000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":182000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":603000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":603000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":365000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":365000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":365000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":113000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":113000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-350000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-350000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-51000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-51000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-49000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-49000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-49000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-49000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-179000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-179000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":243000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":243000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-200000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-200000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-215000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-215000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-215000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-316000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-316000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-316000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-493000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-493000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-990000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-990000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-813000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-813000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-813000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-813000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-93000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-93000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-93000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-259000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-259000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-257000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-257000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":175000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":175000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":175000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-623000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-623000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-589000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-589000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":-420000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-420000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-427000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-427000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-427000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-136000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-136000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-309000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-309000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-321000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-321000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-649000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-649000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-649000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-19000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-19000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-256000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-256000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-210000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-210000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-119000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-119000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-119000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-205000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-205000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-83000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-83000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":-132000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-132000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":-132000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-132000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-132000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":361000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":361000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":279000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":279000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":218000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":218000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":472000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":472000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":472000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":222000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":222000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-314000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-314000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":-456000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-456000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":-56000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-56000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-56000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-157000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-157000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-756000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-756000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-550000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-550000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-166000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-166000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-166000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":582000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":582000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-92000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-92000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-93000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-93000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":-460000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-460000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":215000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":320000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":433000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":521000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncreaseDueToPurchasesOfMineralsInPlace":{"label":"Increase Due to Purchases of Minerals in Place","description":"Amount of increase in standardized measure of discounted future net cash flow as a result of purchases of minerals in place.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":487000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":487000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":487000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":487000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"IncreaseInUnrecognizedTaxBenefitsIsReasonablyPossible":{"label":"Increase in Unrecognized Tax Benefits is Reasonably Possible","description":"Amount of increase reasonably possible in the next twelve months for the unrecognized tax benefit.","units":{"USD":[{"end":"2020-12-31","val":24000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"}]}},"IncrementalCommonSharesAttributableToShareBasedPaymentArrangements":{"label":"Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements","description":"Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":6000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":5000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":4000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":5000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":4000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":6000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":6000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":8000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":8000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":8000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":8000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":8000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":8000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":7000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":6000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":7000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":6000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":4000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":4000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":4000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":4000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":4000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":4000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":4000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":5000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":5000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":6000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":6000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":6000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":6000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":6000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":6000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":5000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":5000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":8000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":8000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":6000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":6000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":6000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":6000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":6000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":6000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":6000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":6000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":7000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":7000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":7000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":9000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":9000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":9000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":9000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":9000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":9000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":9000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":9000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":8000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":8000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":9000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":9000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":9000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":6000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":6000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":5000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":5000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":8000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":8000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":15000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":15000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":15000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":15000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":16000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":16000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":15000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":15000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":15000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":15000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":16000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":16000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":16000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":14000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":14000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":12000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":12000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":10000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":10000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":11000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":11000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":8000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":8000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":10000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":10000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":10000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":10000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":10000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":9000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":9000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":8000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":8000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":9000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":9000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":8000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":8000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":9000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":9000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":8000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":8000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":8000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":8000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":7000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":7000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":7000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":7000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":6000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":7000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":7000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":6000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IndefiniteLivedIntangibleAssetsExcludingGoodwill":{"label":"Indefinite-lived Intangible Assets (Excluding Goodwill)","description":"Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.","units":{"USD":[{"end":"2016-12-31","val":217000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":215000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":215000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":215000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":215000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":215000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":215000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":215000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":215000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":215000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":215000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":214000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":214000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":214000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":214000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":214000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InsuranceRecoveries":{"label":"Insurance Recoveries","description":"The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":59000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":59000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":59000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":92000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":92000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":92000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":92000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":92000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":92000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"InsuranceSettlementsReceivable":{"label":"Insurance Settlements Receivable","description":"Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.","units":{"USD":[{"end":"2016-12-31","val":17000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":16000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":14000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":26000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":23000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":20000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":18000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":17000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InsuranceSettlementsReceivableCurrent":{"label":"Insurance Settlements Receivable, Current","description":"Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2016-12-31","val":2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":7000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":5000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":9000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InsuranceSettlementsReceivableNoncurrent":{"label":"Insurance Settlements Receivable, Noncurrent","description":"Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) of amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.","units":{"USD":[{"end":"2016-12-31","val":15000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":14000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":13000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":9000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":9000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":19000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":18000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":14000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":8000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"IntangibleAssetsNetExcludingGoodwill":{"label":"Intangible Assets, Net (Excluding Goodwill)","description":"Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.","units":{"USD":[{"end":"2008-12-31","val":364000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":364000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":364000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":364000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":359000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":355000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":342000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":347000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":347000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":347000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":347000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":347000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":336000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":333000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":330000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":328000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":328000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":328000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":328000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":328000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":325000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":323000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":321000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":325000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":325000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":325000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":325000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":325000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":326000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":324000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":321000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":334000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":334000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":380000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":380000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":334000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":334000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":334000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":317000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":317000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":316000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":305000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":305000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":306000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":307000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":398000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":398000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":402000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":402000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":401000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":401000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":412000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":412000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":416000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":416000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":422000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":422000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":428000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":428000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":432000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InterestCostsCapitalized":{"label":"Interest Costs Capitalized","description":"Amount of interest capitalized during the period.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":122000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":59000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":14000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":69000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":10000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":78000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":78000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":6000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":16000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":16000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":10000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":10000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":39000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":39000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":23000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":23000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":66000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":66000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":66000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":25000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":25000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":23000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":23000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":75000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":75000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":27000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":27000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":109000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":109000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":48000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":48000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":62000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":62000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":14000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":14000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":81000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":18000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":18000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":53000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":35000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":114000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":61000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":63000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2024-01-01","end":"2024-03-31","val":86000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":179000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":93000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":280000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":101000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2025-01-01","end":"2025-03-31","val":104000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":203000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":99000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":278000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":75000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"InterestCostsIncurred":{"label":"Interest Costs Incurred","description":"Total interest costs incurred during the period and either capitalized or charged against earnings.","units":{"USD":[{"start":"2009-01-01","end":"2009-06-30","val":348000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":172000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":520000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":172000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2010-01-01","end":"2010-03-31","val":151000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":283000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":283000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":132000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":132000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":409000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":409000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":126000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":126000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":123000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":123000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":220000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":220000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":97000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":97000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":105000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":105000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":99000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":99000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":154000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":154000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":55000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":55000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":210000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":210000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":56000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":56000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":75000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":75000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":242000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":242000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":167000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":167000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":465000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":465000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":223000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":223000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-03-31","val":224000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":224000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":449000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":449000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":225000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":225000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":661000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":661000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":212000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":212000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":210000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":210000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":203000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":425000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":411000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":215000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":208000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":642000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":622000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":217000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":211000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":211000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2015Q3"},{"start":"2016-01-01","end":"2016-03-31","val":228000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":218000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":218000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":436000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":436000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":218000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":218000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":647000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":647000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":211000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":211000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2017-01-01","end":"2017-03-31","val":195000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":195000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":387000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":387000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":192000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":192000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":583000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":583000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":196000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":196000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2018-01-01","end":"2018-03-31","val":176000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":176000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":341000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":341000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":165000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":165000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":501000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":508000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":166000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":167000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2019-01-01","end":"2019-03-31","val":178000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":178000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":345000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":345000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":167000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":167000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":508000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":508000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":163000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":163000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2020-01-01","end":"2020-03-31","val":171000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":171000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":330000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":330000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":159000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":159000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":490000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":490000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":160000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":160000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2021-01-01","end":"2021-03-31","val":160000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":160000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":325000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":325000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":165000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":165000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":482000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":482000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":157000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":157000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2022-01-01","end":"2022-03-31","val":153000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":153000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":342000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":342000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":189000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":189000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":524000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":524000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":182000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":182000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2023-01-01","end":"2023-03-31","val":207000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":207000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":441000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":441000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":234000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":234000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":606000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":606000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":165000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":165000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2024-01-01","end":"2024-03-31","val":175000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":175000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":356000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":356000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":181000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":181000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":529000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":529000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":173000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":173000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2025-01-01","end":"2025-03-31","val":174000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":355000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":181000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":537000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":182000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":586000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":267000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":122000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":370000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":103000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":462000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":98000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":172000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":74000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":250000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":78000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":312000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":63000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"InterestIncomeExpenseNet":{"label":"Interest Income (Expense), Net","description":"The net amount of operating interest income (expense).","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-606000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-617000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-617000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-191000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-387000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-196000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-574000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-187000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-755000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-755000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-755000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-167000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-167000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-329000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-329000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-162000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-162000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-633000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-633000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":-304000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-304000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-801000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-801000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-801000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-151000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-151000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-293000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-293000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":-142000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":-142000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-436000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-436000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":-143000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-143000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-945000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-945000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-945000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-146000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-146000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-278000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-278000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-132000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-132000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-401000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-401000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-123000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-123000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-620000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-620000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-620000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-127000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-127000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-242000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-242000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":-115000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":-115000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-362000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-362000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-120000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-120000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":-598000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-598000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-598000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-145000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-145000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-293000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":-293000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":-148000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":-148000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-431000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-431000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":-138000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":-138000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-602000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-602000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-602000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-127000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-127000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-283000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-283000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":-156000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":-156000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":-423000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-423000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":-140000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":-140000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":-560000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-560000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-560000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-151000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-151000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-322000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-322000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":-171000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":-171000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":-418000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-418000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":-96000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":-96000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":-515000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-515000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-515000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-89000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-89000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-177000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-177000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":-88000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":-88000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":-249000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-249000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":-72000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":-72000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":-319000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-319000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":-70000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-152000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":-82000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":-259000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":-107000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":-369000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"InterestPaidDiscontinuedOperations":{"label":"Interest Paid, Discontinued Operations","description":"The amount of cash paid during the current period for interest owed on debt associated with discontinued operations.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":18000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"}]}},"InterestPaidNet":{"label":"Interest Paid, Excluding Capitalized Interest, Operating Activities","description":"Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":741000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":504000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":504000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":421000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":421000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":365000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":284000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":225000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":225000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":111000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":111000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":111000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":397000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":397000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":397000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":397000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":637000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":637000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":637000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":637000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":570000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":570000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":570000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":570000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":743000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":743000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":743000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":565000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":565000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":565000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":500000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":500000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":500000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":591000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":591000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":591000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":472000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":472000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":472000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":640000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":640000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":640000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":417000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":417000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":417000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":419000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":419000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":419000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":206000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":206000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":256000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"InterestPayableCurrent":{"label":"Interest Payable, Current","description":"Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2009-12-31","val":113000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":92000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":92000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":69000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":69000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":35000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2015-12-31","val":165000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":168000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":168000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":183000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":183000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":178000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":178000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":243000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":243000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":203000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":203000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":218000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":218000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":146000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":146000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":135000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":135000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":145000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InventoryAdjustments":{"label":"Inventory Adjustments","description":"Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.","units":{"USD":[{"end":"2018-12-31","val":256000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"InventoryFinishedGoods":{"label":"Inventory, Finished Goods, Gross","description":"Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-12-31","val":911000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":911000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":911000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":911000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1128000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1054000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1113000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1146000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1146000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1146000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1146000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1146000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1269000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1214000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1115000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1099000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1099000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":1099000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":1099000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":1099000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":931000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1012000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1023000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":996000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":867000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":867000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":743000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":743000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":743000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":743000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":633000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":805000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":709000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":743000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":722000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":629000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":629000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":629000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":629000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":629000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":762000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":603000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":749000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":747000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":747000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":747000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":747000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":985000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":680000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":723000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":696000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1326000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1326000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":1326000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":1326000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":1326000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1082000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":940000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1142000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":839000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":839000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":839000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":839000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":839000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":819000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":779000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":755000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":745000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":745000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":745000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":745000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":745000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":958000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":963000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":796000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":927000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":927000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":927000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":927000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":927000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":931000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":916000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1020000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1169000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1169000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1169000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1169000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1169000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1604000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":1643000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":1729000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1782000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1782000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1691000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"InventoryGross":{"label":"Inventory, Gross","description":"Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.","units":{"USD":[{"end":"2015-12-31","val":961000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":998000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":998000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":998000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":998000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":998000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1133000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1019000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1188000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1166000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1166000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1166000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1102000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1337000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"}]}},"InventoryNet":{"label":"Inventory, Net","description":"Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2013-06-30","val":4946000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4853000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5018000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"}]}},"InventoryNoncurrent":{"label":"Inventory, Noncurrent","description":"Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.","units":{"USD":[{"end":"2015-12-31","val":1663000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1633000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1633000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1633000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1633000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1633000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1625000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1554000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1453000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1409000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1409000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1409000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1409000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1409000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1387000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1371000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1355000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1314000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1314000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":1314000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":1314000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":1570000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1343000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1347000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1300000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1425000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1425000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":1425000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":1425000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":1425000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":1272000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":1446000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":1463000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":1463000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1463000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":1463000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":1463000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":1463000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":1475000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":1473000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":1450000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1387000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1387000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1387000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1387000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1387000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1377000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1230000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1194000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1252000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1252000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1252000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1252000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1252000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1235000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":1241000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":1327000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1336000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1336000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":1336000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":1336000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":1336000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1313000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":1286000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":1257000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":1225000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1225000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":1225000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":1225000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":1225000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":1169000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":1122000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":1091000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":1173000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InventoryOreStockpilesOnLeachPads":{"label":"Inventory, Ore Stockpiles on Leach Pads, Gross","description":"Amount before last-in first-out (LIFO) and valuation reserves of ore stockpile material contained on a leach pad, for example, but not limited to, copper or gold ore.","units":{"USD":[{"end":"2010-12-31","val":821000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":821000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1067000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1146000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2015-12-31","val":1402000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1079000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1079000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1079000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1079000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1079000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1054000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1046000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1057000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1062000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1062000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1062000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1062000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1062000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1118000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1142000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1152000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1171000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1171000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":1171000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":1171000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":915000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1127000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1125000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1102000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":923000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":923000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":923000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":923000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":923000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":948000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":864000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":819000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":809000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":809000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":809000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":809000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":809000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":830000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":834000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":877000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":977000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":977000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":977000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":977000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":977000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1052000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1191000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1167000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1167000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1167000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1167000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1167000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1167000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1218000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":1274000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":1238000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1240000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1240000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1238000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"InventoryRawMaterials":{"label":"Inventory, Raw Materials, Gross","description":"Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-12-31","val":237000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":237000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":237000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":237000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":171000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":210000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":154000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":238000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":238000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":238000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":238000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":238000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":247000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":297000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":335000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":272000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":306000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":281000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":220000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":247000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":247000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":222000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":209000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":255000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":255000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":255000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":255000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":255000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":194000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":295000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":285000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":265000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":265000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":265000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":265000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":265000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":284000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":435000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":299000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":260000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":273000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":295000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":292000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":318000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":318000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":318000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":318000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":318000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":209000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":287000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":360000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":366000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":366000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":366000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":366000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":366000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":419000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":433000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":437000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":536000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":536000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":536000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":536000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":536000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":280000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":436000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":353000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":443000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":443000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":443000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":443000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":443000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":392000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":382000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":467000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":469000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":469000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q4I"},{"end":"2024-03-31","val":413000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"InventoryRawMaterialsAndSuppliesNetOfReserves":{"label":"Inventory, Raw Materials and Supplies, Net of Reserves","description":"Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.","units":{"USD":[{"end":"2015-12-31","val":1575000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1306000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1306000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1306000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1306000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1306000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1275000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1264000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1276000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1305000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1323000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1335000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1404000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1439000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":1528000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1528000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":1528000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":1528000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":1528000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":1595000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1634000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1619000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1649000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1649000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":1649000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":1649000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":1649000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":1614000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":1604000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":1610000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":1594000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1594000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":1594000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":1594000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":1594000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":1596000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":1616000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":1617000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1669000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1669000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1669000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1669000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1669000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1741000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1776000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1873000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1964000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1964000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1964000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1964000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1964000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":2056000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":2098000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":2131000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":2169000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":2169000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":2169000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":2169000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":2169000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":2202000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":2283000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":2328000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":2382000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":2382000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":2382000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":2382000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":2382000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":2418000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":2516000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":2633000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":2738000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"InventorySuppliesNetOfReserves":{"label":"Inventory, Supplies, Net of Reserves","description":"Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods.","units":{"USD":[{"end":"2009-12-31","val":1093000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1169000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1169000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":1169000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":1169000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1169000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1199000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1277000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1323000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1354000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1354000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":1354000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":1354000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":1354000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1450000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1377000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1465000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1504000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1504000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":1504000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":1504000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1504000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1575000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1725000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1762000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1730000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1730000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1730000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1730000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1730000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1744000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1825000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1943000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1886000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1886000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":1886000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":1886000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":1886000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1612000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1919000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2014000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2071000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1869000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1869000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":1594000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1594000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1594000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1594000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1714000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":1445000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1338000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1348000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"InventoryValuationReserves":{"label":"Inventory Valuation Reserves","description":"Amount of valuation reserve for inventory.","units":{"USD":[{"end":"2009-12-31","val":21000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":21000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":21000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-06-30","val":23000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":28000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":26000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":26000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":26000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":26000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":26000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":25000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":23000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":26000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":26000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":26000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":26000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":26000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":27000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":27000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":26000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":27000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":27000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":27000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":27000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":27000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":27000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":30000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":30000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":24000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":24000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":24000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":24000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":24000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":21000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":21000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":22000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":20000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":20000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":20000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":20000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":20000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":19000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":21000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":25000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":26000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":29000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":29000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":26000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":26000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":26000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":26000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":28000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":27000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":29000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":31000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":29000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-03-31","val":30000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":30000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":31000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":29000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":29000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":29000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":29000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":29000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":25000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":25000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":25000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":24000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":24000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":24000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":24000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":24000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":23000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":24000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":26000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":24000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":24000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":24000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":24000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":24000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":25000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":31000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":32000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":32000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":35000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":33000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":37000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":39000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":39000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":41000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":39000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":28000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":33000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":31000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":41000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":41000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q4I"},{"end":"2024-03-31","val":48000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"InventoryWorkInProcess":{"label":"Inventory, Work in Process, Gross","description":"Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2012-12-31","val":252000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":252000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":252000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":252000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":237000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":244000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":80000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":199000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":199000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":199000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":199000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":199000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":188000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":154000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":129000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":174000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":158000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":155000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":102000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":118000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":118000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":93000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":94000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":114000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":114000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":114000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":114000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":114000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":177000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":121000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":154000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":154000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":154000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":154000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":154000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":154000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":138000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":179000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":174000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":192000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":192000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":192000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":192000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":192000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":137000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":156000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":79000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":124000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":124000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":124000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":124000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":124000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":106000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":110000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":163000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":174000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":174000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":174000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":174000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":174000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":165000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":200000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":184000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":195000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":195000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":195000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":195000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":195000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":275000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":155000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":204000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":221000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":221000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":221000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":221000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":221000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":245000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":189000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":219000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":221000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":221000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q4I"},{"end":"2024-03-31","val":252000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"InventoryWriteDown":{"label":"Inventory Write-down","description":"Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":1000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":5000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":4000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":22000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":17000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":782000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":782000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":19000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":19000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":19000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":19000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":19000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":19000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":19000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2013-01-01","end":"2013-12-31","val":76000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":76000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":76000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":76000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":76000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":63000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":63000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":59000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":59000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":59000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":59000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":59000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":154000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":154000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":338000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":338000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":338000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":338000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":184000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":184000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":184000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":35000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":35000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":5000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":7000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":2000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":27000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":20000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":20000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":36000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":36000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":36000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":9000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-12-31","val":8000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":12000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":57000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":57000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":59000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":59000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":59000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":2000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":100000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":41000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":41000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":179000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":79000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":222000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"}]}},"LeaseAndRentalExpense":{"label":"Operating Leases, Rent Expense","description":"Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":90000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":74000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":74000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":64000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":64000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":64000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":70000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":77000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":77000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":77000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":96000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":96000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":96000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":79000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":96000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":96000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":76000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":76000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":89000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":71000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":71000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":71000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":71000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":59000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":59000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":59000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"}]}},"LeaseCost":{"label":"Lease, Cost","description":"Amount of lease cost recognized by lessee for lease contract.","units":{"USD":[{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":80000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":40000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":103000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":30000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":134000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":134000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":134000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":116000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":116000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":116000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":104000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":104000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":104000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":130000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":130000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":130000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":174000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":174000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":174000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":190000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":190000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":223000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"LegalFees":{"label":"Legal Fees","description":"The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.","units":{"USD":[{"start":"2015-04-01","end":"2015-06-30","val":33000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2"}]}},"LesseeOperatingLeaseLiabilityPaymentsDue":{"label":"Lessee, Operating Lease, Liability, to be Paid","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease.","units":{"USD":[{"end":"2019-03-31","val":338000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":342000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":332000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":317000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":287000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":399000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":406000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":567000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1596000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive":{"label":"Lessee, Operating Lease, Liability, to be Paid, after Year Five","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-03-31","val":155000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":158000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":155000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":121000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":194000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":186000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":299000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":612000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":956000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year One","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-12-31","val":57000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":46000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":48000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":105000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":131000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":151000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearFive":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Five","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-03-31","val":30000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":30000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":31000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":29000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":29000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":24000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":29000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":113000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":75000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearFour":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Four","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":33000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":35000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":31000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":27000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":29000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":38000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":67000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":171000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearThree":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Three","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-03-31","val":39000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":40000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":42000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":36000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":36000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":73000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":34000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":44000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":81000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":115000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsDueYearTwo":{"label":"Lessee, Operating Lease, Liability, to be Paid, Year Two","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2019-03-31","val":45000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":54000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":55000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":43000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":41000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":35000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":85000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":52000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":96000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":128000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear":{"label":"Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year","description":"Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.","units":{"USD":[{"end":"2019-03-31","val":36000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":27000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":14000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"}]}},"LesseeOperatingLeaseLiabilityUndiscountedExcessAmount":{"label":"Lessee, Operating Lease, Liability, Undiscounted Excess Amount","description":"Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.","units":{"USD":[{"end":"2019-03-31","val":82000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":79000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":76000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":69000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":59000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":80000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":74000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":136000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":310000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":483000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LettersOfCreditOutstandingAmount":{"label":"Letters of Credit Outstanding, Amount","description":"The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.","units":{"USD":[{"end":"2011-06-30","val":43000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":44000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":44000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"Liabilities":{"label":"Liabilities","description":"Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.","units":{"USD":[{"end":"2008-12-31","val":16252000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":16252000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":16252000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":16252000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":15626000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":15793000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":15771000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":15239000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":15239000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":15239000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":15239000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":15239000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":15280000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":13686000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":14230000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":14826000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":14826000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":14826000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":14826000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":14826000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":14917000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":13477000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":13657000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":13517000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":13517000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":13517000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":13517000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":13517000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":13606000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":13799000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":13774000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":14129000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":14129000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":14129000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":14129000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":14129000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":20739000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":38508000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":37324000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":37526000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":37526000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":37526000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":37526000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":37526000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":37617000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":37597000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":37261000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":35570000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":35449000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":35449000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":35449000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":35449000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":35449000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":35279000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":35196000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":34417000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":33769000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":33927000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":33927000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":32206000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":31560000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":28060000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":28060000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":28060000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":28060000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":28060000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":26989000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":27050000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":27097000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":26006000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":26006000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":26006000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":26006000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":26006000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":24711000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":24186000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":24295000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":24324000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":24324000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":24324000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":24324000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":24324000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":23218000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":23269000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":23401000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":23361000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":23361000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":23361000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":23361000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":23361000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":23256000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":23075000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":23537000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":23476000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":23476000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":23476000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":23476000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":23476000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":24070000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":24501000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":24386000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":25003000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":25003000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":25003000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":25003000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":25003000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":24790000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":26066000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":25746000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":26222000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":26222000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":26222000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":26222000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":26222000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":25261000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":24880000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":24971000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":25196000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":25196000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":25196000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":25196000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":25196000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":26093000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":25949000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":26534000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":26070000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":26070000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":26070000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":26070000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":26070000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":26808000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":26496000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":26431000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":27401000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LiabilitiesAndStockholdersEquity":{"label":"Liabilities and Equity","description":"Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.","units":{"USD":[{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":23353000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":23708000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":24624000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":25705000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":25996000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":27113000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":25979000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":27951000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":29386000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":31008000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":30579000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":31708000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":32070000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":32905000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":33689000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":34517000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":35440000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":42588000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":63157000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":62598000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":63473000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":63843000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":64009000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":63976000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":58795000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":58674000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":56065000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":54008000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":50383000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":46577000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":42664000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":42664000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":41296000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":41400000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":37317000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":36576000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":37043000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":37327000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":37302000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":36637000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":37028000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":37749000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":42216000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":41059000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":41086000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":40943000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":40809000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":40219000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":40230000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":41099000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":42144000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":43643000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":45436000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":46917000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":48022000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":48832000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":50113000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":49927000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":51093000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":50909000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":50907000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":51648000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":52506000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":54198000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":54635000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":55400000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":54848000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":56022000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":56492000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":56828000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":58167000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LiabilitiesCurrent":{"label":"Liabilities, Current","description":"Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.","units":{"USD":[{"end":"2008-12-31","val":3158000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":3158000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":3158000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":3158000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":2648000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":2989000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":3157000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":3002000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":3002000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":3002000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":3002000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":3002000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":4307000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":2983000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":3272000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":3763000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":3763000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":3763000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":3763000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3763000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":4751000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3106000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3181000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2940000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2940000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":2940000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":2940000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":2940000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2924000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2942000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3150000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3343000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3343000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3343000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3343000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3343000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3275000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5610000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4498000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4773000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":4773000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4773000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":4773000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":4773000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5383000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":7558000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6343000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":5172000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4410000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4739000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4827000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":4307000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4426000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":4426000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4540000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4488000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4265000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":4265000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":4265000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":4265000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":4265000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":4842000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4944000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":5517000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":5038000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":5038000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":5011000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":5011000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":4914000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":4344000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3799000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3851000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3329000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":3329000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":3329000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":3329000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":3329000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3247000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3286000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":3381000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":3209000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":3209000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":3209000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":3209000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":3209000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":3143000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":2906000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":3096000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":3417000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":3417000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":3417000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":3417000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":3417000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":4611000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":5527000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":5523000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":5892000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":5892000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":5892000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":5892000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":5892000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":6454000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":5932000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":5999000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":6345000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":6345000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":6345000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":6345000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":6345000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":5281000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":4788000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":4860000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":5815000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":5815000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":5815000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":5815000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":5815000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":6305000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":6136000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":6247000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":5496000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":5496000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":5496000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":5496000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":5496000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":5943000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":5531000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":5526000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":6019000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LiabilitiesFairValueAdjustment":{"label":"Liabilities, Fair Value Adjustment","description":"Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.","units":{"USD":[{"start":"2013-04-01","end":"2013-06-30","val":708000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":683000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":653000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":653000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":226000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":240000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":240000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":233000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":225000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":218000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":210000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":203000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":203000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":195000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":187000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":179000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":179000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-12-31","val":179000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-12-31","val":179000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"end":"2016-12-31","val":179000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q4I"},{"start":"2017-01-01","end":"2017-03-31","val":171000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":163000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2017-09-30","val":131000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"start":"2017-01-01","end":"2017-12-31","val":97000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":97000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-12-31","val":97000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-12-31","val":97000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":97000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":93000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":63000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-09-30","val":60000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-12-31","val":58000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":58000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":10000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":10000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":9000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent":{"label":"Disposal Group, Including Discontinued Operation, Liabilities, Current","description":"Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":193000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":131000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":100000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":824000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":821000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":205000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":256000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":273000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":321000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":350000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":350000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":323000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":323000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q4I"},{"end":"2018-03-31","val":435000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":353000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":273000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"}]}},"LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent":{"label":"Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent","description":"Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":742000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":718000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":718000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":718000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":718000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":865000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":716000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"LiabilitiesSubjectToCompromiseEnvironmentalContingencies":{"label":"Liabilities Subject to Compromise, Environmental Contingencies","description":"The amount of environmental remediation liabilities included in liabilities subject to compromise.","units":{"USD":[{"end":"2021-06-30","val":308000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":313000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"}]}},"LiabilityForUncertainTaxPositionsNoncurrent":{"label":"Liability for Uncertainty in Income Taxes, Noncurrent","description":"Amount recognized for uncertainty in income taxes classified as noncurrent.","units":{"USD":[{"end":"2009-12-31","val":157000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":133000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":133000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":128000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":128000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":107000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":87000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":87000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":68000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":157000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":157000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":152000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":152000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":152000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":167000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":167000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":291000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":291000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":230000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":230000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":255000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":255000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":261000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":261000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":232000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":232000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":161000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":174000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":174000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":136000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":136000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":131000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LineOfCreditFacilityAmountOutstanding":{"label":"Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)","description":"Amount borrowed under the credit facility as of the balance sheet date.","units":{"USD":[{"end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"LineOfCreditFacilityMaximumBorrowingCapacity":{"label":"Line of Credit Facility, Maximum Borrowing Capacity","description":"Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.","units":{"USD":[{"end":"2011-03-31","val":1500000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1500000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1500000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1500000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"LineOfCreditFacilityRemainingBorrowingCapacity":{"label":"Line of Credit Facility, Remaining Borrowing Capacity","description":"Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).","units":{"USD":[{"end":"2011-03-31","val":1500000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1500000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1500000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1500000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"LitigationReserve":{"label":"Estimated Litigation Liability","description":"Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.","units":{"USD":[{"end":"2014-12-31","val":63000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":63000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":77000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":77000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":368000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":368000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":631000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":631000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":502000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":502000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":376000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":376000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"}]}},"LitigationReserveNoncurrent":{"label":"Estimated Litigation Liability, Noncurrent","description":"Carrying amount of estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs, which is expected to be paid after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2015-12-31","val":77000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":77000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":77000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":81000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2020-12-31","val":110000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":131000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":131000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":109000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":109000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":163000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":163000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":163000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":163000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":163000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LitigationSettlementExpense":{"label":"Litigation Settlement, Expense","description":"Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-09-30","val":359000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":359000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":355000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":355000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-12-31","val":371000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2023-01-01","end":"2023-12-31","val":65000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":4000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"LongTermDebt":{"label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2016-12-30","val":2228000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":2228000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":2228000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2018-12-31","val":11141000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":9826000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":9826000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":9826000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":9826000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":9826000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":9711000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":9711000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":9711000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":9711000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":9711000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":9809000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":9695000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":9665000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":9450000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":9450000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":9450000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":9450000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":9450000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":9621000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":11092000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":10690000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":10620000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":10620000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":10620000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":10620000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":10620000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":9635000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":9495000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":9405000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":9422000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":9422000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":9422000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":9422000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":9422000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":9425000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":9426000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":9679000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":8948000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":8948000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":8948000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":8948000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":8948000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":9404000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-12-31","val":9379000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtAndCapitalLeaseObligations":{"label":"Long-term Debt and Lease Obligation","description":"Amount of long-term debt and lease obligation, classified as noncurrent.","units":{"USD":[{"end":"2016-12-31","val":14795000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":11815000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-09-30","val":11123000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9902000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":9912000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9915000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2020-03-31","val":9829000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":9824000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":9983000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"LongTermDebtAndCapitalLeaseObligationsCurrent":{"label":"Long-term Debt and Lease Obligation, Current","description":"Amount of long-term debt and lease obligation, classified as current.","units":{"USD":[{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-09-30","val":4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":17000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":17000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":17000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":4000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":4000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2020-03-31","val":245000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":90000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":47000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities":{"label":"Long-term Debt and Lease Obligation, Including Current Maturities","description":"Amount of long-term debt and lease obligation, including portion classified as current.","units":{"USD":[{"end":"2015-12-31","val":20324000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":16027000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":16027000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":16027000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":16027000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":16027000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":15363000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":15354000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":14782000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":13117000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":13117000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":13117000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":13117000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":13229000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11606000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":11127000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11127000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":11141000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":11141000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":11141000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":11141000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9905000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":9916000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9919000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2020-03-31","val":10074000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":9914000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":10030000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months","description":"Principal amount of long-term debt and capital lease obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2016-12-31","val":1232000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":1414000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"LongTermDebtCurrent":{"label":"Long-term Debt, Current Maturities","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2018-12-31","val":17000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":5000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":5000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":5000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":245000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":90000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":47000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":34000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":656000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":1057000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":897000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1365000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1038000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1032000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1037000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1037000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1037000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1037000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1037000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":49000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":37000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":35000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":769000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":768000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":769000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":495000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":338000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":383000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":466000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":{"label":"Long-Term Debt, Maturity, after Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":3577000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2525000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-06-30","val":18000000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":17900000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":13539000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":11800000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10200000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":10200000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2017-12-31","val":6500000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":3900000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":4200000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":7000000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":7000000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":7600000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":6500000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":6000000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4900000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":4000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-06-30","val":70000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":67000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":312000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":478000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":649000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1200000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":36000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":372000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1000000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":766000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":500000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInRollingAfterYearFive":{"label":"Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five","description":"Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2016-12-31","val":8800000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":{"label":"Long-Term Debt, Maturity, Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":1080000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":500000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-06-30","val":727000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":700000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3700000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":662000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2872000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2872000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":862000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2800000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2700000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":850000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":314000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1300000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":900000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":477000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1000000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":{"label":"Long-Term Debt, Maturity, Year Four","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2013-06-30","val":750000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":750000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":700000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3700000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1400000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1400000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1600000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2400000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1900000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":730000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":137000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1300000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1200000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":500000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":{"label":"Long-Term Debt, Maturity, Year Three","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":500000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-06-30","val":1100000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1100000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":751000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1500000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3400000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":3400000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1100000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1100000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":2400000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1000000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":735000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1300000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1200000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2010-12-31","val":1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2013-06-30","val":616000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":614000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1052000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":651000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1793000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1793000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":2300000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1000000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":507000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1050000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":997000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":731000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1300000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermDebtNoncurrent":{"label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2008-12-31","val":7284000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":7284000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":7284000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":7284000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":7140000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":6834000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":6578000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":6330000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":6330000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":6330000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":6330000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":6330000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":5048000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":4684000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":4681000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":4660000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":4660000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":4660000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":4660000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4660000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":3582000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3537000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3531000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":3533000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3517000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3519000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3521000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3525000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3525000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3525000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3525000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3525000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10088000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":21142000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":21053000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":20394000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":20394000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":20394000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":20394000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":20394000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":19759000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":17512000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":17975000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":18492000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":18371000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":18371000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":18371000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":18371000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":18371000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":19754000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":20111000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":19792000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":19779000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":19675000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":19638000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":19638000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":18549000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":18180000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":14795000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":14795000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":14795000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":14795000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":14795000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":13135000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":13138000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":12567000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":11703000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":11815000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11123000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":11123000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":11123000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":11124000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9902000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":9912000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9915000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":9821000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":9821000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":9821000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":9821000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":9821000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":9829000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":9824000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":9983000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":9677000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":9677000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":9677000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":9677000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":9677000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":9153000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":8638000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":8768000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":9078000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":9078000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":9078000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":9078000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":9078000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":8256000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":10054000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":9658000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":9583000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":9583000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":9583000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":9583000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":9583000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":9586000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":9458000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":9370000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":8656000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":8656000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":8656000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":8656000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":8656000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":8656000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":8658000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":8910000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":8907000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":8907000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":8907000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":8907000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":8907000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":8909000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":8913000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":8915000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":8913000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"LongTermLineOfCredit":{"label":"Long-term Line of Credit, Noncurrent","description":"The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2008-12-31","val":150000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q4I"},{"end":"2008-12-31","val":150000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"}]}},"LongTermLoansPayable":{"label":"Loans Payable, Noncurrent","description":"Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.","units":{"USD":[{"end":"2008-12-31","val":250000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q4I"},{"end":"2008-12-31","val":250000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":250000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2009-03-31","val":257000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":292000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":228000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"}]}},"LossContingencyAccrualCarryingValueCurrent":{"label":"Loss Contingency, Accrual, Current","description":"Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2018-12-31","val":162000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":115000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":115000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":196000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":196000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":259000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":259000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":179000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":67000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":49000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":49000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":49000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"MarketableSecurities":{"label":"Marketable Securities","description":"Amount of investment in marketable security.","units":{"USD":[{"end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"}]}},"MaterialsSuppliesAndOther":{"label":"Materials, Supplies, and Other","description":"The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production.","units":{"USD":[{"end":"2014-12-31","val":43000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":43000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":187000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":187000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":187000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":17000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":32000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":20000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":20000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":20000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":22000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":22000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":19000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":19000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":20000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":20000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":24000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":24000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":26000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":26000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":24000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"MineralExtractionProcessingAndMarketingCosts":{"label":"Mineral Extraction Processing and Marketing Costs (Deprecated 2018-01-31)","description":"Costs incurred related to mineral extraction, processing and marketing.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":11116000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":10693000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":10693000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":2499000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":5455000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":2956000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":7984000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":2529000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":10697000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":10697000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":2200000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":2188000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":4695000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":4668000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":2495000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":2480000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":7497000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":2802000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":10300000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":2808000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":5723000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":2915000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"}]}},"MinorityInterest":{"label":"Stockholders' Equity Attributable to Noncontrolling Interest","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).","units":{"USD":[{"end":"2008-12-31","val":1328000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":1328000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":1328000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":1328000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":1432000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":1562000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":1725000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":1638000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":1638000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":1638000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":1638000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":1638000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":1841000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":1761000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":2125000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":2056000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":2056000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":2056000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":2056000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2056000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":2290000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":2594000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2694000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2911000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":2911000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":2911000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":2911000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":2911000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3164000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3312000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3604000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3768000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3768000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3768000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3768000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3768000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3909000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3989000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4149000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4297000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":4297000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4297000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":4297000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":4297000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4333000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4335000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4375000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":4187000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4238000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4250000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4259000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":4216000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4278000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":4278000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4316000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4334000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3206000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":3206000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":3206000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":3206000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":3206000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3269000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3320000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3257000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3319000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":3319000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":3319000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":3319000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":3319000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3270000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3368000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3477000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":8094000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":8094000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":8094000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":8094000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":8094000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":8058000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":8108000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":8098000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":8150000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":8150000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":8150000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":8150000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":8150000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":8108000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":8201000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":8326000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":8494000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":8494000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":8494000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":8494000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":8494000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":8653000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":8924000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":9178000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":9039000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":9039000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":9039000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":9039000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":9039000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":9176000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":9158000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":9227000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":9316000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":9316000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":9316000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":9316000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":9316000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":9591000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":9825000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":10218000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":10617000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":10617000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":10617000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":10617000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":10617000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":11132000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":11282000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":11318000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":11197000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":11197000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":11197000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":11197000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":11197000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":11526000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":11788000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":11712000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":11867000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"MinorityInterestChangeInRedemptionValue":{"label":"Noncontrolling Interest, Change in Redemption Value","description":"Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":-3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":-12000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":-22000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders":{"label":"Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders","description":"Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-967000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-730000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-730000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":-63000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":-149000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":-535000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-535000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-535000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-75000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-330000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":-330000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":-816000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-816000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-816000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-133000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":195000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":350000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-391000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-391000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":391000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":76000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":-113000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":35000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":84000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":144000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":236000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":236000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":236000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":236000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":70000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":236000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":344000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":396000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":396000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":396000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":15000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":46000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":68000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":91000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":91000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":25000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":66000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2017-01-01","end":"2017-03-31","val":15000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":39000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"}]}},"MinorityInterestDecreaseFromRedemptions":{"label":"Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests","description":"Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-11000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2024-01-01","end":"2024-09-30","val":215000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":215000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":215000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":215000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":215000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":215000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"}]}},"MinorityInterestPeriodIncreaseDecrease":{"label":"Noncontrolling Interest, Period Increase (Decrease)","description":"Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-6000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2019-01-01","end":"2019-03-31","val":-12000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-12000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-12000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-12000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":100000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-12000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-12000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2024-01-01","end":"2024-12-31","val":2000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"}]}},"NetCashProvidedByUsedInDiscontinuedOperations":{"label":"Net Cash Provided by (Used in) Discontinued Operations","description":"Increase (decrease) in cash associated with the entity's discontinued operations.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-59000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":70000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":70000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":62000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-42000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-118000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-118000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-118000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":50000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":49000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":39000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":45000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":45000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"NetCashProvidedByUsedInFinancingActivities":{"label":"Net Cash Provided by (Used in) Financing Activities","description":"Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":9355000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":77000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-494000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-1722000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-1806000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-1806000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":546000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":546000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":446000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":446000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-307000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-307000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":-1012000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-1012000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-1012000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-493000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-493000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-1977000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":-1977000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-2297000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":-2297000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-3322000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-3322000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-3322000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-1502000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":-1502000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-2386000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-2386000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-2759000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-2759000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":-3001000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-3001000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-3001000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-413000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-413000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-746000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-746000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":-1067000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-1067000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-1428000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-1428000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-1428000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":6171000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":6171000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":5380000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":5380000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":3859000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3859000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":3049000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3049000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3049000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3049000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-239000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-239000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-1273000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-1273000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-2196000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-2196000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-3351000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-3351000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3351000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-3351000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1108000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":1108000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":1108000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1608000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1608000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":2207000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2207000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2786000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2786000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2786000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":2786000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":347000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":347000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":347000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-873000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-873000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-748000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-748000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-3166000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-3166000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-3166000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-679000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-679000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-704000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-704000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":-1287000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-1287000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-3055000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-3055000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-3055000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1588000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-1588000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-2277000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-2277000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-2340000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-2340000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":900000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":900000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":900000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-1331000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-1331000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-1370000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-1370000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-1430000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-1430000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-1556000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-1556000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-1556000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":173000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":173000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":24000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":24000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":120000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":120000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":-128000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-128000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-128000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":225000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":225000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":29000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":29000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":-188000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-188000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":-1340000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1340000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1340000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-703000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-703000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-351000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-351000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":-1179000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-1179000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":-1623000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-1623000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-1623000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-1172000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-1172000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-1812000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-1812000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-2226000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-2226000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-2650000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-2650000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-2650000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-342000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-342000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-1128000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-1128000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-1774000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-1774000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":-3284000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-3284000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":155000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-908000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-1733000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":-1876000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetCashProvidedByUsedInInvestingActivities":{"label":"Net Cash Provided by (Used in) Investing Activities","description":"Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-14861000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-487000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":-1108000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-1871000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":-2318000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-2318000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-516000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-516000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":-895000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":-895000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-1146000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-1146000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":-1601000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-1601000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-1601000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-229000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-229000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-519000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":-519000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-857000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":-857000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-1869000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-1869000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1869000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-505000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":-505000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-1013000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-1013000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-1725000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-1725000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":-2535000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-2535000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-2535000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-714000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-714000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1551000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-1551000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":-2537000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-2537000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-3463000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-3463000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-3463000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-1112000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-1112000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-7656000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-7656000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-9088000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-9088000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-10908000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-10908000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-10908000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-10908000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-1605000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-1605000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-1841000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-1841000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-3644000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-3644000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-3801000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-3801000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3801000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-3801000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-1740000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-1740000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-1740000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-3392000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-3392000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-4941000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-4941000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-6246000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-6246000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-6246000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-6246000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-980000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-980000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-980000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-535000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-535000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-894000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-894000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":3550000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3550000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3553000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-365000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-361000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-710000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-703000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":-974000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-954000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-1363000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-1321000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-1321000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-492000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-492000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-970000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-970000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-1472000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-1472000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-5018000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-5018000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-5018000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-546000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":-546000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-1167000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-1167000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":-1825000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-1825000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-2103000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-2103000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-2103000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-546000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-546000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-1026000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-1026000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":-1433000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-1433000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":-1264000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-1264000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-1264000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-368000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-368000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-833000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":-833000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":-1231000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-1231000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":-1964000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1964000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1964000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-714000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-714000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-1530000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-1530000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":-2381000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-2381000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":-3440000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-3440000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-3440000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":-1164000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":-1164000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":-2365000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":-2365000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-3584000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":-3584000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-4956000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-4956000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-4956000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-1277000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-1277000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-2385000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-2385000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-3797000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-3797000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":-5028000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-5028000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":-1176000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-2432000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-3442000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":-4472000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetCashProvidedByUsedInOperatingActivities":{"label":"Net Cash Provided by (Used in) Operating Activities","description":"Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":6225000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":615000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":1624000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":3169000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":3370000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":3370000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-258000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-258000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":896000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":896000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":2850000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":2850000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":4397000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":4397000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":4397000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":1818000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1818000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":2882000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":2882000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":4218000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":4218000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":6273000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":6273000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":6273000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":2359000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2359000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":4039000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":4039000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":5874000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":5874000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":6620000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6620000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":6620000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":801000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":801000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1983000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1983000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":2509000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":2509000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":3774000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3774000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3774000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":831000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":831000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1865000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1865000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":3743000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3743000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":6139000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":6139000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":6139000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":6139000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1201000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1201000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2587000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":2587000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":4513000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":4513000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":5631000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":5631000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":5631000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":5631000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":717000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":717000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":717000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1786000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1786000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":2608000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2608000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3220000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3220000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3220000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3220000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":740000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":740000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":740000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1614000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1614000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":2594000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":2594000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":3729000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3729000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3737000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":792000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":792000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1829000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":1829000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":3018000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":3012000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":4682000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":4666000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":4666000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1369000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1369000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2678000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":2678000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":3925000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":3925000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":3863000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3863000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3863000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":534000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":534000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1088000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1088000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":1312000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1312000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":1482000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1482000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1482000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-38000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-38000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":453000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":453000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":1690000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1690000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":3017000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":3017000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":3017000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1075000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1075000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":3470000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":3470000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":5435000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":5435000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":7715000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7715000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7715000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1691000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1691000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":3312000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":3312000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":4070000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":4070000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":5139000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":5139000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":5139000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1050000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1050000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":2723000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":2723000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":3959000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":3959000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":5279000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":5279000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":5279000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1896000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1896000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":3852000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":3852000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":5724000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":5724000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":7160000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":7160000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1058000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":3253000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":4917000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":5610000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetIncomeLoss":{"label":"Net Income (Loss) Attributable to Parent","description":"The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":1505000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2009-01-01","end":"2009-03-31","val":207000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"}]}},"NetIncomeLossAttributableToNoncontrollingInterest":{"label":"Net Income (Loss) Attributable to Noncontrolling Interest","description":"Amount of Net Income (Loss) attributable to noncontrolling interest.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":802000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":593000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":274000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":748000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":155000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":617000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":617000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":104000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":104000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":268000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":268000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":164000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":164000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":164000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":492000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":492000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":224000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":224000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":224000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":785000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":785000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":785000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":293000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":270000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":270000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":270000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":270000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":438000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":438000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":168000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":168000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":168000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":168000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":793000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":793000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":355000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":355000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":355000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":355000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1208000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":1208000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1208000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":415000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":415000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":362000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":362000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":362000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":362000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":720000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":720000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":358000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":358000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":358000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":358000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":961000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":961000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":241000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":241000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":241000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":241000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1187000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1187000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-10-01","end":"2011-12-31","val":226000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":226000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":237000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":421000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":421000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":184000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":184000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":184000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":184000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":737000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":316000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":316000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":316000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":939000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":939000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":939000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":202000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":202000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":176000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":176000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":176000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":304000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":301000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":128000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":128000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":125000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":519000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":227000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":218000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":783000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":761000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":761000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":761000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":252000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":274000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":274000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":168000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":168000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":416000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":416000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":142000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":142000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":523000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":523000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":523000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-523000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":58000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":58000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":42000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":129000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":29000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-106000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-106000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":72000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":72000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":131000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":190000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":-290000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-290000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-290000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":78000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":145000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":110000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":110000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":-35000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-278000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-278000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":278000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-125000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":125000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":125000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-291000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":291000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":166000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":399000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":108000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":108000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":108000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":292000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":-107000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":45000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":43000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":43000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-2000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":-2000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":16000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-27000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":50000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-50000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":34000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-58000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-58000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":13000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":13000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":71000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":71000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":116000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":116000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":103000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":103000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":266000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-266000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":266000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":235000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-235000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":483000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":483000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":248000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":248000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":807000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":807000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":324000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":324000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-1059000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1059000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1059000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-377000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":377000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":575000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":575000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":198000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":198000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":731000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":731000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":156000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":156000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1011000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":386000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":386000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":774000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":774000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":388000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":388000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1284000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1284000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":510000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":510000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1903000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":689000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":689000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1353000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1353000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":664000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":664000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":2063000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":2063000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":710000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":710000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":2510000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2510000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":441000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1216000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":775000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1789000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":573000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":1948000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetIncomeLossAttributableToNonredeemableNoncontrollingInterest":{"label":"Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest","description":"Portion of net income (loss) attributable to nonredeemable noncontrolling interest.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1187000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-421000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":-184000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-737000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-316000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":939000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-301000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-125000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-519000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":-218000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":761000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"NetIncomeLossAttributableToRedeemableNoncontrollingInterest":{"label":"Net Income (Loss) Attributable to Redeemable Noncontrolling Interest","description":"Amount of Net Income (Loss) attributable to redeemable noncontrolling interest.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2013-01-01","end":"2013-06-30","val":-3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"}]}},"NetIncomeLossAvailableToCommonStockholdersBasic":{"label":"Net Income (Loss) Available to Common Stockholders, Basic","description":"Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":2769000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":1122000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":2069000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":947000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":2592000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":523000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-11341000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-11341000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":43000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":43000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":43000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":631000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":631000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":588000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":588000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":588000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":1556000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":1556000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":925000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":925000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":925000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":2527000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2527000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":2527000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":971000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":897000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":897000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":897000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":897000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":1546000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1546000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":649000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":649000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":649000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":649000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":2724000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2724000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4273000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":4273000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4273000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":1549000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":1549000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1499000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1499000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1499000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":1499000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":2867000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":2867000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":1368000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1368000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1368000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1368000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":3920000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":3920000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1053000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1053000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":1053000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1053000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4560000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4560000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":4560000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":640000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":640000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":764000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":764000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":764000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":764000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1474000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1474000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":710000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":710000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":710000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":710000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2298000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":2298000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":824000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":824000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":824000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":824000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3041000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3041000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3041000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":743000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":743000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":648000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":648000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":648000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":648000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1130000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1130000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":482000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":482000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":482000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":482000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1951000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1951000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":707000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":707000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":510000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":510000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":510000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":510000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":510000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":992000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":992000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":482000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":482000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":482000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":482000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":482000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1544000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1544000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":552000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":552000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":552000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":552000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":552000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1308000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1308000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1308000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1308000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2852000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-2852000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":-2852000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2474000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4325000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4325000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1851000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1851000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":-1851000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1851000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-1851000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-8155000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-8155000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3830000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3830000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":-3830000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3830000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3830000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12236000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-12236000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12236000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12236000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-4081000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":-4081000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-4081000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-4184000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4663000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4663000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-479000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-479000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-479000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-479000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4446000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4446000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":217000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-4154000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-4154000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-4154000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":292000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":292000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":228000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":228000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":228000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":228000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":496000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":496000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":268000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":268000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":268000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":268000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":776000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":776000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":280000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":280000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":280000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":280000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1817000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1817000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1817000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1041000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1041000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":692000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":692000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":692000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":692000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1561000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1561000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":869000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":869000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":869000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":869000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2117000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2117000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":556000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2602000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2602000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2602000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":485000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":485000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":31000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":31000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":31000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-41000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-41000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-72000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-72000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":-72000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-248000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-248000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-207000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-207000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-207000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-239000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-239000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-239000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":9000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-491000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-491000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-438000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-438000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":53000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":53000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-109000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-109000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":329000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":329000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":599000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":599000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":599000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":718000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":718000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1801000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1801000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1083000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1083000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":3200000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":3200000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1399000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1399000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":4306000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4306000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4306000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1527000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1527000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2367000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2367000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":840000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":840000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2771000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2771000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":404000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":404000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":3468000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":3468000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":3468000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":663000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":663000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1006000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1006000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":343000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":343000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1460000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1460000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":454000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":454000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1848000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1848000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1848000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":473000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":473000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1089000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1089000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":616000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":616000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1615000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1615000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":526000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":526000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":1889000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1889000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":352000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1124000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":772000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1798000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":674000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2204000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetIncomeLossAvailableToCommonStockholdersDiluted":{"label":"Net Income (Loss) Available to Common Stockholders, Diluted","description":"Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":-11341000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":654000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":648000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":1584000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":978000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":2749000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":2749000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":945000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":1609000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":1609000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":664000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":664000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2787000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2787000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1178000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4336000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":4336000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4336000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":1499000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2867000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1368000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":3920000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1053000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4560000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4560000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3041000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3041000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":648000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-09-30","val":1951000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":821000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2658000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":509000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":509000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":989000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":480000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":480000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1540000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1540000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":550000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":550000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1311000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1311000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1311000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1311000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2477000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2477000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2477000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4328000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4328000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1854000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1854000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-8158000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-8158000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3833000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3833000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12239000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-12239000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12239000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12239000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-4187000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4187000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4187000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4666000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4666000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-482000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-482000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4449000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4449000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":214000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":214000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-4157000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-4157000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-4157000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":225000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":225000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":493000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":493000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":265000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":265000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":773000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":773000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":277000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":277000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1813000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1813000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1813000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":688000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":688000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1557000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1557000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":866000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":866000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2112000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2112000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":552000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":552000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2598000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2598000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2598000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":28000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":28000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-44000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":-44000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-75000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-75000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-251000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-251000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-210000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-210000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-242000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-242000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-242000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-494000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-494000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-441000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-441000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":50000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":50000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-112000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-112000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":326000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":326000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":596000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":596000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":596000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":714000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":714000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1797000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1797000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1079000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1079000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":3194000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":3194000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1395000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1395000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":4299000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4299000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4299000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1522000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1522000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2362000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2362000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":836000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":836000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2765000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2765000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":399000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":399000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":3461000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":3461000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":3461000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":658000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":658000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1001000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1001000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":338000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":338000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1455000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1455000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":449000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":449000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1842000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1842000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1842000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":468000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":468000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1083000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1083000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":610000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":610000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1609000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1609000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":520000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":520000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":1883000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1883000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":346000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1118000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":766000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1791000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":667000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2197000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NetIncreaseDecreaseInSalesAndTransferPricesAndProductionCosts":{"label":"Net Increase (Decrease) in Sales and Transfer Prices and Production Costs","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in sales and transfer prices and in production (lifting) costs related to future production.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-459000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":-459000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":-459000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":-459000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2875000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-2875000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2875000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2875000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-7766000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-7766000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-7766000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-7766000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-341000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-341000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"NoncashOrPartNoncashAcquisitionDebtAssumed1":{"label":"Noncash or Part Noncash Acquisition, Debt Assumed","description":"\"The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"\"Part noncash\"\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.\"","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":7100000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":7100000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"NoncontrollingInterestDecreaseFromDeconsolidation":{"label":"Noncontrolling Interest, Decrease from Deconsolidation","description":"The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-243000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":243000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":243000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":243000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2016-01-01","end":"2016-06-30","val":5000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":5000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":1206000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1206000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1206000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest":{"label":"Noncontrolling Interest, Increase from Sale of Parent Equity Interest","description":"Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.","units":{"USD":[{"start":"2018-01-01","end":"2018-12-31","val":4231000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2020-01-01","end":"2020-09-30","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2024-01-01","end":"2024-09-30","val":2000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":2000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"}]}},"NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance":{"label":"Noncontrolling Interest, Increase from Subsidiary Equity Issuance","description":"Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":5000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2018-01-01","end":"2018-12-31","val":4231000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4231000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2020-01-01","end":"2020-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3"},{"start":"2022-01-01","end":"2022-09-30","val":142000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":48000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2023-01-01","end":"2023-03-31","val":50000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":50000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-09-30","val":2000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":2000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"},{"start":"2025-01-01","end":"2025-09-30","val":2000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":2000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NoncurrentAssets":{"label":"Long-Lived Assets","description":"Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.","units":{"USD":[{"end":"2009-12-31","val":18090000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2010-12-31","val":19205000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":19205000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":21697000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":21697000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":21697000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":24589000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":24589000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":24589000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":51204000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":51204000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":51204000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":51204000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":49412000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":49412000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":49412000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":49412000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":38795000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":38795000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":38795000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":38795000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":26574000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":26574000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":26704000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":26213000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":26364000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":31093000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":31349000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":32488000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":32488000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":32438000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":32438000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":32778000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":32778000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":35061000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":35061000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":38011000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":38011000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":41116000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":41116000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":43935000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"NonoperatingIncomeExpense":{"label":"Nonoperating Income (Expense)","description":"The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":13000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":13000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":13000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":13000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-22000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":33000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":33000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":25000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":25000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":-8000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":-8000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":48000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":48000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":23000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":23000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":36000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":36000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":31000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":44000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":43000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":37000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":36000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":4000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-40000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-41000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":38000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":36000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":100000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":100000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":64000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":64000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":54000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":105000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-10000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":5000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":49000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":31000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":6000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":44000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":13000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":49000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"}]}},"NontradeReceivablesCurrent":{"label":"Nontrade Receivables, Current","description":"The sum of amounts currently receivable other than from customers. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2009-12-31","val":147000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":195000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":293000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":293000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":293000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":293000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":311000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":252000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":307000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":250000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":250000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":250000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":250000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":180000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":272000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":263000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":242000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":266000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":702000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":702000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":702000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":266000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":687000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":635000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":480000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":415000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":834000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":834000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":834000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":139000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":866000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":920000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":793000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1610000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":1610000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":1610000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":288000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":284000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1401000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1323000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1276000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":174000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":174000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":154000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":154000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":154000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":154000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":122000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":103000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":102000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":97000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"NontradeReceivablesNoncurrent":{"label":"Nontrade Receivables, Noncurrent","description":"The noncurrent portion of the receivable other than from customers, that is amounts expected to be collected after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":675000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2011-12-31","val":675000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":675000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2012-06-30","val":860000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1004000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":769000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"}]}},"NotesAndLoansReceivableNetNoncurrent":{"label":"Financing Receivable, after Allowance for Credit Loss, Noncurrent","description":"Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":110000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":138000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":138000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":149000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":149000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":152000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":152000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":164000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":164000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q4I"},{"end":"2015-12-31","val":174000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q4I"}]}},"NotesReceivableRelatedPartiesNoncurrent":{"label":"Notes Receivable, Related Parties, Noncurrent","description":"Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":30000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":30000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":32000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":32000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":34000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":34000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":37000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":37000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2014Q4I"},{"end":"2015-12-31","val":39000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2015Q4I"},{"end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":36000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":101000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"}]}},"NumberOfOperatingSegments":{"label":"Number of Operating Segments","description":"Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.","units":{"pure":[{"start":"2018-01-01","end":"2018-03-31","val":4,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}],"segment":[{"start":"2018-01-01","end":"2018-06-30","val":4,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-09-30","val":4,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2019-01-01","end":"2019-03-31","val":4,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":4,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":4,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2020-01-01","end":"2020-03-31","val":4,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":4,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-09-30","val":4,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2021-01-01","end":"2021-03-31","val":4,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":4,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":4,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-12-31","val":4,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":4,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":4,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-09-30","val":4,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-12-31","val":4,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":4,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":4,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-09-30","val":4,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-12-31","val":4,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":4,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":4,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-09-30","val":4,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-12-31","val":4,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":4,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":4,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":4,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"OilAndGasPropertyFullCostMethodDepletion":{"label":"Oil and Gas Property, Full Cost Method, Depletion","description":"Depletion of oil and gas property carried under the full cost method.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1357000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1357000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":7360000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":22276000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":27433000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":27433000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":27445000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"}]}},"OilAndGasSalesPayableCurrent":{"label":"Oil and Gas Sales Payable, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable to third parties for oil and gas that has been sold but not delivered. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2015-12-31","val":53000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":37000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"OperatingCostsAndExpenses":{"label":"Operating Costs and Expenses","description":"Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":3276000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2009-01-01","end":"2009-03-31","val":1930000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":6555000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":2396000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":4449000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":2053000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":5582000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":1133000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-12710000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-12710000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":672000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":672000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":672000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":2180000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":2180000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":1508000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":1508000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":1508000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":4264000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":4264000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":2084000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":2084000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":2084000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":6503000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":6503000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":6503000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":2239000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":2048000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":2048000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":2048000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":2048000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":3472000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":3472000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":1424000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":1424000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":1424000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":1424000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":5971000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":5971000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2499000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":2499000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":2499000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2499000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":9068000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":9068000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9068000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":3097000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":3097000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":2936000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":2936000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":2936000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":2936000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":5693000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":5693000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":2757000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":2757000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":2757000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":2757000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":7843000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":7843000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2150000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2150000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":2150000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2150000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":9140000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":9140000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":9140000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":1297000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":1297000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":1734000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":1734000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":1734000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":1734000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":3045000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":3045000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1311000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1311000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":1311000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":1311000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4456000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":4456000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1411000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1411000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":1411000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1411000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":5814000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":5814000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":5814000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":1358000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":1358000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":1355000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":1355000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":1355000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":1355000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1994000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1994000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":639000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":639000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":639000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":639000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3701000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3701000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1707000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1707000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":1707000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1707000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":5351000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5351000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5351000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":4820000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":1650000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":1650000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":1111000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1111000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":1111000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":1111000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":1021000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2264000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":2264000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1153000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1153000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":1153000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1153000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":1042000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3396000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":3396000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1132000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1132000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":1132000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1132000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":1033000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":97000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":97000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-298000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-298000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-3299000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-3299000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":-3394000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2963000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2963000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":-2963000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-3030000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-3030000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-3030000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-5337000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-5451000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-2374000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-2374000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":-2421000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-2421000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-2421000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-9282000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-9415000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3945000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3945000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":-3964000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3964000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3964000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-13382000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-13512000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-13512000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-13512000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-4100000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":-4097000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-4097000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-3876000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-3872000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-3872000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-3872000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-3872000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-3854000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-3854000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":18000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":18000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":18000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":18000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-3495000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-3495000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":359000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":359000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":359000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":359000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-2792000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-2792000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-2729000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":703000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":703000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":580000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":580000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":597000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":597000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1249000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":1283000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":669000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":669000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":686000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":686000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":2166000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":2211000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":917000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":917000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":928000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":928000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":3633000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":3690000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":3690000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1467000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1479000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":1459000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1459000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":1459000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":1459000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":3123000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":3123000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1664000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1664000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":1664000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1664000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":4438000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":4438000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1315000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1315000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":1315000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1315000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":4754000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4754000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4754000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":316000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":316000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":321000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":321000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":321000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":354000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":354000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":33000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":33000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":33000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":316000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":316000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-38000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-38000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-38000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1091000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1091000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1091000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":775000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-473000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-473000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-152000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-152000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":321000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":321000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":728000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":728000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":880000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":880000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":2437000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":2437000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":2437000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1532000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1532000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":3599000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":3599000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":2067000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":2067000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":6061000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":6061000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":2462000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":2462000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":8366000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":8366000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":8366000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":2809000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":2809000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":4545000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":4545000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1736000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1736000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":5507000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":5507000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":962000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":962000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":7037000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":7037000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":7037000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1601000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1601000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":3011000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":3011000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1410000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1410000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":4503000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":4503000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1492000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1492000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":6225000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":6225000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":6225000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1634000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1634000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":3683000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":3683000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":2049000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":2049000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":5621000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":5621000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1938000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1938000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":6864000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":6864000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1303000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":3735000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":2432000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":5707000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1972000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":6518000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OperatingLeaseCost":{"label":"Operating Lease, Cost","description":"Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.","units":{"USD":[{"start":"2019-01-01","end":"2019-03-31","val":12000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":33000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":21000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":44000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":11000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":55000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":42000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":42000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":42000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":42000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":42000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":42000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":48000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":48000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":48000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":44000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":44000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":61000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OperatingLeaseLiability":{"label":"Operating Lease, Liability","description":"Present value of lessee's discounted obligation for lease payments from operating lease.","units":{"USD":[{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q4I"},{"end":"2019-03-31","val":256000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":263000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":256000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":248000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":248000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":228000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":228000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":319000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":319000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":332000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":332000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":431000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":431000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":790000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":790000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1113000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OperatingLeaseLiabilityCurrent":{"label":"Operating Lease, Liability, Current","description":"Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.","units":{"USD":[{"end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":33000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":47000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":45000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":44000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":44000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":38000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":38000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":38000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":38000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":38000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":38000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":84000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":84000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":98000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":98000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":103000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OperatingLeaseLiabilityNoncurrent":{"label":"Operating Lease, Liability, Noncurrent","description":"Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.","units":{"USD":[{"end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":223000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":216000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":211000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":204000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":204000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":190000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":190000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":281000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":281000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":294000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":294000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":347000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":347000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":692000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":692000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1010000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OperatingLeasePayments":{"label":"Operating Lease, Payments","description":"Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.","units":{"USD":[{"start":"2019-01-01","end":"2019-03-31","val":10000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":20000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":32000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":43000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":43000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":38000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":40000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":36000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":36000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":54000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":54000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":54000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":61000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":61000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":61000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":61000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":61000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":85000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OperatingLeaseRightOfUseAsset":{"label":"Operating Lease, Right-of-Use Asset","description":"Amount of lessee's right to use underlying asset under operating lease.","units":{"USD":[{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-01-01","val":243000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-01-01","val":243000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":245000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":242000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":241000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":232000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":232000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":207000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":207000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":277000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":337000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":342000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":342000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":448000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":448000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":853000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":853000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":1205000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDue":{"label":"Operating Leases, Future Minimum Payments Due","description":"Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.","units":{"USD":[{"end":"2010-12-31","val":183000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":200000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":205000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2018-12-31","val":53000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueCurrent":{"label":"Operating Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":33000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":24000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":32000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":45000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":44000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":54000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":54000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":34000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":53000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":42000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFiveYears":{"label":"Operating Leases, Future Minimum Payments, Due in Five Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":13000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":12000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":35000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":23000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":23000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":19000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":17000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":29000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Operating Leases, Future Minimum Payments, Due in Four Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":14000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":16000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":40000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":36000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":25000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":25000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":20000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":18000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":32000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":29000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Operating Leases, Future Minimum Payments, Due in Three Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":17000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":19000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":42000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":42000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":40000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":40000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":22000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":38000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":32000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Operating Leases, Future Minimum Payments, Due in Two Years","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":22000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":18000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":19000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":42000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":44000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":49000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":49000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":36000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":24000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":42000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":38000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueThereafter":{"label":"Operating Leases, Future Minimum Payments, Due Thereafter","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":84000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":116000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":104000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":132000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":165000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":146000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":146000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":109000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":95000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":171000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":171000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"}]}},"OperatingLeaseWeightedAverageDiscountRatePercent":{"label":"Operating Lease, Weighted Average Discount Rate, Percent","description":"Weighted average discount rate for operating lease calculated at point in time.","units":{"pure":[{"end":"2019-03-31","val":0.057,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":0.052,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":0.056,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":0.055,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":0.055,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":0.054,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":0.054,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":0.042,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":0.042,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":0.041,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":0.041,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":0.047,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":0.047,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0.049,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":0.049,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":0.05,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherAdjustmentsForNoncashItemsIncludedInIncomeLossFromContinuingOperations":{"label":"Other Adjustments for Noncash Items Included in Income (Loss) from Continuing Operations (Deprecated 2009-01-31)","description":"Transactions that result in no cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect method. This element is used when there is not a more specific and appropriate element.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":48000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2009-01-01","end":"2009-03-31","val":33000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"}]}},"OtherAssetImpairmentCharges":{"label":"Other Asset Impairment Charges","description":"The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":256000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":256000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"OtherAssets":{"label":"Other Assets","description":"Amount of assets classified as other.","units":{"USD":[{"end":"2009-12-31","val":12000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":12000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":14000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":38000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2013-06-30","val":4461000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4413000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4184000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":4184000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":4184000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":4184000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":4184000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4431000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4805000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4587000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4256000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4135000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":4135000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":4135000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":4135000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3429000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4238000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4255000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4303000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4513000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":4513000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":3664000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":3652000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3652000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3652000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":4612000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":3742000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3950000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3857000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"USD":[{"end":"2008-12-31","val":386000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":386000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":386000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":386000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":280000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":269000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":365000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":104000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":104000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":104000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":104000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":104000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":110000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":111000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":208000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":254000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":254000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":254000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":254000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":254000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":280000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":262000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":413000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":214000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":214000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":214000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":214000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":214000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":223000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":328000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":353000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":387000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":387000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":387000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":387000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":387000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":410000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":459000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":305000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":407000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":407000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":407000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":407000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":407000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":491000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":668000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":577000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":657000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":657000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":657000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":657000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":657000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":616000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":671000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":528000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":570000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":173000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":173000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":164000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":164000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":164000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":164000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":161000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":233000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":223000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":226000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":299000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":110000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":199000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":199000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":199000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":199000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":196000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":211000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":241000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":270000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":270000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":270000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":270000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":286000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":367000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":381000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":402000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":422000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":422000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":422000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":422000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":422000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":560000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":760000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":672000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":655000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":655000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":655000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":655000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":655000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":795000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":517000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":419000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":341000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":341000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":341000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":341000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":341000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":361000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":390000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":477000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":523000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":523000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":523000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":523000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":523000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":529000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":608000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":647000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":492000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":492000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":492000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":381000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":381000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":473000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":472000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":406000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":375000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":375000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":375000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":375000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":375000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":385000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":389000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":436000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":535000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":535000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":535000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":535000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":535000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":575000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":547000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":554000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":580000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherAssetsMiscellaneousCurrent":{"label":"Other Assets, Miscellaneous, Current","description":"Amount of other miscellaneous assets expected to be realized or consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2013-12-31","val":5425000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6018000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"OtherAssetsMiscellaneousNoncurrent":{"label":"Other Assets, Miscellaneous, Noncurrent","description":"Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":36000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":45000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":139000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":149000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":5425000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":5425000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":5425000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":151000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5711000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6038000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6066000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":214000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":141000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":139000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":142000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":142000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":141000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":145000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":130000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":144000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":146000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":132000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":134000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":134000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":85000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":103000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":101000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":144000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":144000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":182000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":106000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":97000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":109000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2008-12-31","val":467000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":467000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":467000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":609000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":452000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":436000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":448000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":700000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":700000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":700000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":700000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":700000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":716000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":728000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":687000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":997000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":997000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":997000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":997000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":797000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1059000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1060000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1114000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":888000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":888000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":888000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":888000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":1213000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":867000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":868000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":847000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1420000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2189000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":2189000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":2189000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2189000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2235000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2269000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2109000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1798000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1798000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1798000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1798000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1798000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1959000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2287000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2018000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2077000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1956000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":1956000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":1956000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":1956000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1741000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1977000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1978000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1977000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2242000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2242000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":2001000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1989000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1989000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1989000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1987000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":2288000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":2039000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2208000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2134000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1956000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1956000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1956000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1956000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1956000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":2010000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1957000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1790000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2270000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2270000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":2270000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":2270000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":2273000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":2352000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":2391000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":2460000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2172000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2172000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":2172000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":2172000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":2172000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2174000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2168000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1966000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":1885000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1885000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":1885000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":1885000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":1885000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":1691000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":1693000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":1654000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":1560000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1560000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":1560000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":1560000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":1560000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":1537000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":1528000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":1574000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1460000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1460000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1460000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1460000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1460000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1445000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1501000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1546000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1601000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1601000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1601000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1601000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1601000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1769000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":1764000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":1709000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1810000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1810000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":1810000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":1810000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":1810000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1846000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":1843000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":1848000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":1813000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1813000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":1813000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":1813000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":1507000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":1851000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":1899000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":1916000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":1658000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax":{"label":"Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax (Deprecated 2012-01-31)","description":"The adjustment out of other comprehensive income for prior service costs recognized as a component of net period benefit cost during the period, after tax.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":3000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax","description":"Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2022-01-01","end":"2022-03-31","val":-1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-1000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":-1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2023-01-01","end":"2023-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3"}]}},"OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax","description":"Amount, after tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":21000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":21000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":21000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":21000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"The increase (decrease) in accumulated comprehensive income during the period related to pension and other postretirement benefit plans, after tax. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2009-01-01","end":"2009-03-31","val":62000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"}]}},"OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax","description":"Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":54000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-340000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-340000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":61000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-03-31","val":61000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":61000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":61000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":9000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":9000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":9000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-12-31","end":"2010-12-31","val":-69000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-69000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-55000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":-157000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-137000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-137000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-66000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-66000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":85000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":73000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-161000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-166000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-166000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-166000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-5000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-5000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-5000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-88000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-77000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-77000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-116000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-116000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-116000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-89000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-89000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-89000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-89000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":46000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":46000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":46000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":-1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":179000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":179000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":179000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":62000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":62000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":62000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":39000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":39000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":39000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-44000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-44000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-5000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax","description":"Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":34000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":190000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":190000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":39000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":38000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":51000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":51000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":51000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":34000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":61000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-39000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-37000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-94000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-89000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-89000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31)","description":"Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent","description":"Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax","description":"Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-2000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-4000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-4000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":1000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":3000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":3000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":5000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":1000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":12000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":12000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":7000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-9000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-9000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-10000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-11000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-1000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax","description":"Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":15000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":8000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":22000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":7000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":7000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":12000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":12000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":18000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":18000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":6000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":6000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":12000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":12000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":5000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":5000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":25000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":25000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":25000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":8000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":8000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":8000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":16000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":16000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":8000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":8000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":24000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":24000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":8000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":8000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":8000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":8000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":23000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":34000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":11000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicPensionCostNetOfTax":{"label":"Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Pension Cost, Net of Tax (Deprecated 2013-01-31)","description":"Net of tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":-6000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-3000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-11000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-5000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-7000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-15000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-8000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-22000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":-7000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-7000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"}]}},"OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax":{"label":"OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax","description":"Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":2000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":2000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax","description":"Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-2000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":4000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":5000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-9000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-10000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-11000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-1000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-1000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-1000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":1000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":1000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":-1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-1000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":-1000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":-1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-5000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-5000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":4000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-2000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":-1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":-1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":-1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":-1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":-1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":-1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":-1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":-1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":-1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":-1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-1000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":-1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":-1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax":{"label":"Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax","description":"Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Net of Tax","description":"Amount after tax and reclassification adjustments of other comprehensive income (loss).","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-52000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":7000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":2000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":9000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":-145000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-145000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":12000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":26000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":26000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":8000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":8000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-42000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-42000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-42000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":11000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":11000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":10000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":10000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":98000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":98000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":98000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":98000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-141000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-141000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-141000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-141000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":21000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":9000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":9000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":36000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":36000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":15000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":15000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-1000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-1000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-1000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":14000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":14000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":26000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":26000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":12000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":12000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-43000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":100000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":100000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":89000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":89000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":113000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":113000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":13000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":13000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":69000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":69000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":69000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":22000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":22000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":34000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":34000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":12000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":12000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-34000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-34000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-34000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":11000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":24000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":24000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":13000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":13000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":11000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":11000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-68000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-68000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-68000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":7000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":7000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":23000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":23000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":16000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":16000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":-53000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-53000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":-76000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":-76000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":90000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":90000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":90000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":2000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":2000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":6000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":6000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":10000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":10000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":196000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":196000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":196000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":3000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":68000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":68000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":68000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":2000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":2000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":3000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":3000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":3000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":44000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":44000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":44000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":-42000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-42000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":3000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":2000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":4000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)","description":"This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":64000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-346000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":-346000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":68000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":74000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":81000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":33000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":33000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":33000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":3000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":5000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":10000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":-52000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":-52000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":5000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":5000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":7000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":9000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-145000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":12000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent":{"label":"Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent","description":"Amount after tax of other comprehensive income (loss) attributable to parent entity.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":11000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":22000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":11000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-139000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-139000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-139000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-139000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":12000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":21000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":9000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":9000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":35000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":35000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":14000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":14000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":15000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":27000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":27000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":12000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":12000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-45000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":92000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":92000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":81000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":81000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":105000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":105000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":13000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":13000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":61000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":61000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":61000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":12000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":12000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":34000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":34000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":11000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":11000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":-33000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-33000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":12000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":12000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-71000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax","description":"Amount, before reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-15000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":17000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-14000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-14000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-14000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax","description":"Amount, after tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":-15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-26000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-30000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":24000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":24000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":24000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":5000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":88000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":88000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":-69000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-69000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":-69000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-69000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-69000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-69000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-14000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":77000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax":{"label":"Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax","description":"Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.","units":{"USD":[{"start":"2017-01-01","end":"2017-06-30","val":48000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-48000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":48000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-48000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":48000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-48000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax","description":"Amount, after tax, of reclassification adjustment from accumulated other comprehensive (income) loss for net periodic benefit cost (credit) of defined benefit plan.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":25000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":38000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":8000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":23000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":15000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":34000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":11000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":44000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":44000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":44000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":30000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":30000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":19000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":19000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":42000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":42000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":12000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":12000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":54000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":54000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":54000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":12000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":12000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":11000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":36000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":36000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":13000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":13000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":48000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":48000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":48000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":11000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":11000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":24000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":24000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":13000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":13000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":35000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":11000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":11000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":47000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":12000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":12000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":24000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":24000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":12000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":12000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":38000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":38000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":14000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":14000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":45000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":45000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":45000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":4000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":8000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":8000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":12000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":12000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":18000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":18000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":18000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":2000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":2000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":4000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":2000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":5000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":1000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":8000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":2000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":2000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":3000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":3000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":5000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":5000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":5000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":3000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":3000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":2000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":4000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":12000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax (Deprecated 2012-01-31)","description":"Net of tax effect of the reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":8000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"}]}},"OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax":{"label":"Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax (Deprecated 2013-01-31)","description":"Net of tax amount of the income statement impact of the reclassification adjustment for actuarial (gains) losses recognized as a component of net periodic benefit cost.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":6000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":7000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":7000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-06-30","val":9000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":14000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":18000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":3000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":7000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":10000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":15000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":3000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":6000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":11000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax":{"label":"Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax","description":"Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-4000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"}]}},"OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax":{"label":"OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax","description":"Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":2000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":-9000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-9000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":1000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":3000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":3000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":3000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-06-30","val":-2000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":-1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":-1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-1000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":1000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-1000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":4000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":1000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"OtherCostAndExpenseOperating":{"label":"Other Cost and Expense, Operating","description":"The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":446000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":266000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":653000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":207000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":933000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"}]}},"OtherDeferredCostsNet":{"label":"Other Deferred Costs, Net","description":"Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies.","units":{"USD":[{"end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":113000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":113000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":113000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":81000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":81000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":81000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"OtherInventorySupplies":{"label":"Other Inventory, Supplies, Gross","description":"Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.","units":{"USD":[{"end":"2008-12-31","val":1124000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-12-31","val":1093000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q4I"},{"end":"2009-12-31","val":1093000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":1093000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":1093000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2010-03-31","val":1068000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":1097000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":1108000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"}]}},"OtherInvestments":{"label":"Other Investments","description":"Amount of investments classified as other.","units":{"USD":[{"end":"2011-12-31","val":49000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":51000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":51000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":63000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":63000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":60000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":60000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":48000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":62000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":50000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":50000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":50000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":50000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":48000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":48000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":36000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"}]}},"OtherLiabilitiesNoncurrent":{"label":"Other Liabilities, Noncurrent","description":"Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2008-12-31","val":1520000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":1520000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":1520000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":1520000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":1400000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":1360000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":1370000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":1423000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":1423000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":1423000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":1423000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":1423000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":1397000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":1402000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":1386000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":1459000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1459000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":1459000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":1459000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1459000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1463000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1446000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1441000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1651000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1651000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":1651000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":1651000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":1651000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1582000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1553000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1531000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1644000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1644000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":1644000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":1644000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1644000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1666000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1810000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1774000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1690000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1690000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":1690000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":1690000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1690000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1695000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1782000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1730000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1861000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1861000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":1861000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":1861000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":1861000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1846000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1812000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1760000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1727000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1656000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1656000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":1641000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1641000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1641000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1641000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":1641000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":1659000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":1642000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1662000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1618000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1745000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1745000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1745000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":1745000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":1745000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":1719000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1586000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1744000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2012000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":2012000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":2012000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":2012000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":2012000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1972000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":1931000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1918000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":2230000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":2370000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":2399000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":2302000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":2491000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":2491000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":2491000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":2491000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":2491000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":2439000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":2398000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":2440000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":2269000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":2269000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":2269000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":2269000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":2269000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":2140000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":2129000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":1907000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":1683000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":1683000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":1683000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":1683000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":1683000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":1653000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":1613000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":1550000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":1562000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":1562000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":1562000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":1562000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":1562000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":1596000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":1725000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":1697000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1648000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1648000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":1648000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":1648000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":1648000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1573000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":1581000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":1782000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":1887000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":1887000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":1887000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":1887000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":1195000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":2126000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":2179000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":2174000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":1296000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherNoncashIncomeExpense":{"label":"Other Noncash Income (Expense)","description":"Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-142000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-2000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-36000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-92000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":34000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":32000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":21000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":96000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-8000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"}]}},"OtherNoncurrentLiabilities":{"label":"Other Noncurrent Liabilities (Deprecated 2011-01-31)","description":"Obligations not otherwise itemized or previously categorized that are due beyond one year (or operating cycle, if longer) from the balance sheet date.","units":{"USD":[{"end":"2009-12-31","val":208000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":146000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":157000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":2000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":11000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":9000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":10000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":-14000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-22000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-9000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-14000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-14000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":-17000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":-17000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":-3000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":-3000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":-24000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-24000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":-7000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":-7000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":-53000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-53000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-53000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":12000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":12000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":21000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":21000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":9000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":9000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-19000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":-19000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-13000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-13000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":10000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":10000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":12000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":12000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":2000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":2000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":40000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":40000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":28000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":28000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":58000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":58000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":58000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":-13000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-13000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":51000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":51000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":23000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":23000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-15000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":-15000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":27000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":27000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":27000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":13000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":13000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":13000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":13000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-22000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":33000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":33000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":25000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":25000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":-8000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":-8000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":48000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":48000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":23000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":23000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":36000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":36000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":31000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":31000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-48000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":43000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-55000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":36000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-88000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-40000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-41000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":38000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":36000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":36000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":64000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":64000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":25000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":25000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":54000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":54000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":-10000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":-10000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":49000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":49000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":25000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":8000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":34000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":10000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":-7000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":36000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-9000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":2000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":-9000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":49000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":28000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":29000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":49000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":49000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":20000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":20000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":63000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":63000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":14000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":14000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":14000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":14000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":19000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":19000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":5000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":5000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":52000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":52000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":33000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":33000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-138000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-138000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-138000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":20000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":20000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":40000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":40000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":20000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":20000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":62000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":62000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":22000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":22000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":59000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":11000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":11000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":20000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":20000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":9000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":9000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":56000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":56000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":36000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":36000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":-105000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-105000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-105000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":31000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":31000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":42000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":42000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":11000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":11000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":67000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":67000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":25000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":25000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":207000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":207000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":207000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":88000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":88000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":112000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":112000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":24000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":24000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":183000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":183000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":71000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":71000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":286000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":286000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":286000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":129000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":129000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":198000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":198000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":69000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":69000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":295000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":295000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":97000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":97000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":362000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":362000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":58000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":99000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":41000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":158000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":59000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":223000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherOperatingActivitiesCashFlowStatement":{"label":"Other Operating Activities, Cash Flow Statement","description":"Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":-7000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-18000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-70000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":48000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":18000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":61000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":69000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":48000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":112000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-56000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-59000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-9000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":59000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-2000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-43000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":30000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":19000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":21000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":15000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":7000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":16000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":27000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":48000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":42000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":41000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":40000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":22000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":20000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":141000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":138000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":141000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-56000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-56000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-46000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-46000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":-23000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":-53000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":53000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":23000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":55000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":28000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":29000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":77000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":77000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":39000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":50000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":-18000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-77000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":27000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-26000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":-17000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":-44000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":-86000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":-52000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":-44000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-3000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":22000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":8000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":48000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":14000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":109000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":59000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-33000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-33000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-33000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-39000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-39000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":21000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":21000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":14000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":14000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":53000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":53000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":4000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-19000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-21000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":23000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"OtherOwnershipInterestsValue":{"label":"Other Ownership Interests, Contributed Capital","description":"The amount of capital contributed by other unit holders.","units":{"USD":[{"end":"2019-12-31","val":166000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":166000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":166000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":156000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":156000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":156000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":41000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":47000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":47000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":182000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":182000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":182000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-03-31","val":47000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2022-03-31","val":47000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1I"},{"end":"2022-06-30","val":47000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":48000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":189000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":189000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":189000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-03-31","val":50000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"}]}},"OtherPostretirementBenefitsPayableCurrentAndNoncurrent":{"label":"Liability, Other Retirement Benefits","description":"Amount of liability for retirement benefits, classified as other.","units":{"USD":[{"end":"2015-12-31","val":27000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":27000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"}]}},"OtherReceivables":{"label":"Other Receivables","description":"Amount due from parties in nontrade transactions, classified as other.","units":{"USD":[{"end":"2008-12-31","val":838000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q4I"},{"end":"2009-03-31","val":830000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-12-31","val":168000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":200000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"}]}},"OtherReceivablesNetCurrent":{"label":"Other Receivables, Net, Current","description":"Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.","units":{"USD":[{"end":"2015-12-31","val":152000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":89000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"OtherSundryLiabilitiesNoncurrent":{"label":"Other Sundry Liabilities, Noncurrent","description":"Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are expected to be paid after one year (or the normal operating cycle, if longer), from the balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":146000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":157000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":157000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":153000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":197000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":263000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":263000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":363000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":155000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":140000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":108000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":93000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":93000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":62000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":62000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":199000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":195000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":195000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":212000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":212000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":229000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":77000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":116000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":116000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":149000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":113000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":106000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":106000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":96000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":96000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":86000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"OtherTaxExpenseBenefit":{"label":"Other Tax Expense (Benefit)","description":"Amount of other income tax expense (benefit).","units":{"USD":[{"start":"2015-01-01","end":"2015-09-30","val":-56000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"}]}},"PaymentOfFinancingAndStockIssuanceCosts":{"label":"Payment of Financing and Stock Issuance Costs","description":"The total of the cash outflow during the period which has been paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt and the cost incurred directly for the issuance of equity securities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":36000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":113000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":113000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":113000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":113000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":10000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":33000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":35000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":35000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":35000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":7000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":7000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":7000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":7000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":13000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":13000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":18000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":17000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":23000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-06-30","val":4000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":23000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"}]}},"PaymentsForEnvironmentalLiabilities":{"label":"Payments for Environmental Liabilities","description":"Cash outflows made during the period for environmental remediation activities.","units":{"USD":[{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":14000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"PaymentsForLegalSettlements":{"label":"Payments for Legal Settlements","description":"The amount of cash paid for the settlement of litigation or for other legal issues during the period.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":34000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-09-30","val":20000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":30000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":30000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":11000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":21000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":32000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":32000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":53000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":53000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":10000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":21000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-09-30","val":32000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-12-31","val":56000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2024-01-01","end":"2024-03-31","val":15000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-04-01","end":"2024-06-30","val":15000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2"},{"start":"2024-07-01","end":"2024-09-30","val":15000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"}]}},"PaymentsForProceedsFromOtherInvestingActivities":{"label":"Payments for (Proceeds from) Other Investing Activities","description":"Amount of cash (inflow) outflow from investing activities classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":53000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":55000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":-58000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":86000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":87000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-3000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":-1000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":1000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":8000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":8000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":39000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":14000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":39000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":-2000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":-2000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-8000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":-8000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":-20000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":-20000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-23000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":-43000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-43000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-19000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-19000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-24000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-24000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":26000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":4000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":4000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":19000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":19000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-2000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":-31000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":-31000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":264000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":264000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":24000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":24000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":181000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":181000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":181000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":181000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-7000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":-7000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":363000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":363000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-221000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-221000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-221000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-221000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-221000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-221000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-127000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-127000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-127000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-136000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":14000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-114000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":37000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-2000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-2000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-2000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":6000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-9000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-9000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-8000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-8000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-11000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":21000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":17000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":8000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":22000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":25000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-17000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":90000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":90000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":86000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":86000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":91000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":91000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":97000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":97000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":97000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":8000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":8000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":7000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":10000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":10000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":10000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":12000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":2000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":2000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":5000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":5000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":6000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":6000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":3000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":3000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":13000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":13000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":25000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":25000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":27000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":27000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":27000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":2000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":-18000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":6000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":6000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":10000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":10000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":14000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":14000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":14000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":19000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":19000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":31000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":20000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":29000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":13000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":30000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":30000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":-5000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":-5000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":-13000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":-13000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":-10000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":-10000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":-18000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":4000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":-1000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":-22000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":-22000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PaymentsForRepurchaseOfCommonStock":{"label":"Payments for Repurchase of Common Stock","description":"The cash outflow to reacquire common stock during the period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-09-30","val":500000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":500000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":500000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1185000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1185000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":1347000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1347000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":59000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":59000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":59000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":59000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":55000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":107000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":107000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":107000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PaymentsForRepurchaseOfPreferredStockAndPreferenceStock":{"label":"Payments for Repurchase of Preferred Stock and Preference Stock","description":"The cash outflow to reacquire preferred stock during the period.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":202000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":202000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":227000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":227000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"PaymentsOfDebtIssuanceCosts":{"label":"Payments of Debt Issuance Costs","description":"The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":35000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":16000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":13000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":18000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":17000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":32000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":32000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":11000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":11000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":12000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":12000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":23000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-09-30","val":23000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"}]}},"PaymentsOfDividends":{"label":"Payments of Dividends","description":"Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":685000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":2114000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":2537000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2537000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2537000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2537000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":403000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":403000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":903000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":903000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":1344000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1344000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":1729000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1729000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1729000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1729000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":350000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":350000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":350000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":440000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":440000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":636000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":636000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":725000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":725000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":725000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":725000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":22000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":22000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":22000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":44000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":44000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":92000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":92000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":699000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":699000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":699000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":16000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":16000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":41000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":41000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":69000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":69000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":176000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":176000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":176000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":80000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":80000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":314000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":314000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":386000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":386000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":496000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":496000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":82000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":125000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":164000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":208000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1000000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"}]}},"PaymentsOfDividendsCommonStock":{"label":"Payments of Ordinary Dividends, Common Stock","description":"Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":421000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-169000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":337000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":504000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":693000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":693000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":66000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":66000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":130000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":130000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":272000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":272000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":885000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":885000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":885000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":238000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":238000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":949000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":949000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":1186000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1186000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":1423000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1423000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1423000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":238000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":238000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":535000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":535000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":832000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":832000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":1129000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1129000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1129000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":297000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":297000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":595000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":595000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":1957000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1957000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":2281000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2281000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2281000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2281000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":326000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":326000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":653000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":653000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":979000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":979000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":1305000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1305000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1305000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1305000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":327000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":327000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":327000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":380000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":380000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":547000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":547000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":605000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":605000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":605000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":605000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":5000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":5000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":5000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":5000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":2000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":2000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":2000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":73000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":145000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":145000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":218000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":218000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":218000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":73000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":73000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":146000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":146000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":218000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":218000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":291000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":291000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":291000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":73000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":73000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":73000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":73000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":73000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":73000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":73000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":73000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":73000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":111000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":111000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":220000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":220000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":331000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":220000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":220000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":438000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":438000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":652000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":652000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":866000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":866000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":866000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":217000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":217000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":432000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":432000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":647000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":647000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":863000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":863000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":863000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":218000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":218000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":433000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":433000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":649000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":649000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":865000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":865000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":218000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":433000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":649000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":865000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PaymentsOfDividendsMinorityInterest":{"label":"Payments of Ordinary Dividends, Noncontrolling Interest","description":"Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":967000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-49000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":280000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":714000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":730000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":730000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":63000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":63000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":149000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":149000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":535000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":535000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":535000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":75000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":75000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":145000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":145000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":330000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":330000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":816000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":816000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":816000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":133000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":133000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":195000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":195000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":350000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":350000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":391000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":391000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":391000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":76000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":76000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":35000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":35000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":90000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":90000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":157000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":157000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":256000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":256000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":256000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":256000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":77000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":77000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":250000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":250000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":365000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":365000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":424000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":424000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":424000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":23000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":23000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":23000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":60000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":60000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":89000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":89000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":120000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":120000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":18000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":18000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":18000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":39000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":39000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":87000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":87000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":693000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":15000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":15000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":39000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":39000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":67000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":67000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":174000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":174000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":80000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":80000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":241000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":241000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":241000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":241000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":278000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":278000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":278000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":9000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":9000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":79000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":79000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":79000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":79000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":82000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":82000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":82000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":93000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":93000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":187000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":187000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":583000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":583000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":583000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":204000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":204000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":513000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":513000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":625000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":625000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":840000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":0,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":291000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":291000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":407000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":407000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":625000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":625000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":625000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":102000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":102000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":685000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":685000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":1269000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1269000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":1833000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1833000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":625000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":1274000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":1274000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PaymentsOfDividendsPreferredStockAndPreferenceStock":{"label":"Payments of Ordinary Dividends, Preferred Stock and Preference Stock","description":"Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":175000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-64000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":127000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":191000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":255000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":255000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":60000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":-60000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":120000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":120000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":181000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":181000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":229000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":229000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":229000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":49000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":49000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":95000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-06-30","val":95000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":95000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-09-30","val":95000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":95000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":95000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"PaymentsOfFinancingCosts":{"label":"Payments of Financing Costs","description":"The cash outflow for loan and debt issuance costs.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":22000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":22000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":51000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":72000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":111000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":111000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":113000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":113000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":25000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":34000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":4000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":23000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-03-31","val":18000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":18000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":31000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":31000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":51000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":51000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-03-31","val":1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":47000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":47000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-03-31","val":1000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":33000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":33000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":41000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":41000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-03-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-09-30","val":2000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"}]}},"PaymentsRelatedToTaxWithholdingForShareBasedCompensation":{"label":"Payment, Tax Withholding, Share-based Payment Arrangement","description":"Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"USD":[{"start":"2019-01-01","end":"2019-12-31","val":8000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":5000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":5000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":5000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":17000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":17000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":19000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":19000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":19000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":19000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":19000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":19000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":55000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":55000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":55000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":55000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":55000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":55000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":47000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":47000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":47000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":47000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":27000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":27000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":35000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":35000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":35000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":35000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":22000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":22000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":22000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":23000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PaymentsToAcquireBusinessesNetOfCashAcquired":{"label":"Payments to Acquire Businesses, Net of Cash Acquired","description":"The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":13910000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":1000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2013-01-01","end":"2013-03-31","val":321000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":5414000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":5414000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":5441000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":5441000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":5441000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5441000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5441000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":5441000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":925000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":1421000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"}]}},"PaymentsToAcquireEquityMethodInvestments":{"label":"Payments to Acquire Equity Method Investments","description":"The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.","units":{"USD":[{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-06-30","val":0,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-06-30","val":33000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":33000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":33000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":33000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":33000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":33000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":33000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"}]}},"PaymentsToAcquireInterestInJointVenture":{"label":"Payments to Acquire Interest in Joint Venture","description":"The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"}]}},"PaymentsToAcquireInterestInSubsidiariesAndAffiliates":{"label":"Payments to Acquire Interest in Subsidiaries and Affiliates","description":"The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":2000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":2000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":2000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"PaymentsToAcquireMineralRights":{"label":"Payments to Acquire Mineral Rights","description":"The cash outflow from the acquisition of a mineral right which is the right to extract a mineral from the earth or to receive payment, in the form of royalty, for the extraction of minerals.","units":{"USD":[{"start":"2006-12-31","end":"2007-12-31","val":2200000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2006-12-31","end":"2007-12-31","val":2200000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2007"},{"start":"2007-01-01","end":"2007-12-31","val":2200000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2007-01-01","end":"2007-12-31","val":2200000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2007-01-01","end":"2007-12-31","val":2200000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2007-01-01","end":"2007-12-31","val":2200000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2007-01-01","end":"2007-12-31","val":1700000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"}]}},"PaymentsToAcquireOilAndGasProperty":{"label":"Payments to Acquire Oil and Gas Property","description":"The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":925000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":925000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":1421000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1421000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1426000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"PaymentsToAcquireOtherProductiveAssets":{"label":"Payments to Acquire Other Productive Assets","description":"Amount of cash outflow for the purchase of or improvements to tangible or intangible assets, used to produce goods or deliver services, classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":142000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-36000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":87000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":172000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":274000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":274000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-67000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":67000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":97000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":97000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":125000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":125000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":153000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":71000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":153000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":27000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":20000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":47000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":84000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":50000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":173000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":84000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":84000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":39000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":39000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":68000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":68000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":107000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":107000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":134000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":134000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":158000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":10000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":21000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":27000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":41000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":50000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":96000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":111000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":111000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":33000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":34000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":79000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":79000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":163000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":163000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":240000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":240000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":240000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":445000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":21000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":21000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":40000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":40000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":63000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":63000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":95000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":95000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":254000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":30000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":30000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":69000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":75000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":172000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":142000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":308000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":173000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":402000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":50000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":85000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":118000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":145000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"PaymentsToAcquireProductiveAssets":{"label":"Payments to Acquire Productive Assets","description":"The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":2534000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":1547000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":840000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":2518000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":971000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3494000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3494000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":805000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1978000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1978000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":1173000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":1173000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3623000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3623000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1645000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1645000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":5286000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5286000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5286000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":5286000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1612000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1612000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":3562000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":3562000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1950000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1950000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":5415000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":5415000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1853000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1853000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":7215000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":7215000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":7215000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":7215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1867000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":1867000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":1867000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3528000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":3528000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":1661000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":1661000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":5055000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":5055000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":1527000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":1527000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":6353000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":6353000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":6353000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":6353000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":982000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":982000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":982000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1815000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1815000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":833000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":833000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":2309000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":2309000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":494000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":494000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":2813000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":2813000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":2813000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":344000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":344000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":706000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":706000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":362000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":362000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1020000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1020000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":314000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":314000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1410000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1410000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1410000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":402000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":402000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":884000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":884000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":482000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":482000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1391000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1391000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":507000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":507000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1971000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1971000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1971000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":622000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":622000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1251000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1251000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":629000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":629000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1917000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1917000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":666000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":666000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":2652000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":2652000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":2652000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":610000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":610000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1137000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1137000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":527000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":527000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":1573000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1573000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":436000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":436000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":1961000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1961000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1961000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":370000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":370000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":803000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":803000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":433000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":433000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":1344000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1344000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":541000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":541000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":2115000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2115000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":2115000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":723000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":723000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1586000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1586000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":863000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":863000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":2422000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":2422000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":836000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":836000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":3469000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":3469000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":3469000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1121000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1121000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":2284000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":2284000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1163000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1163000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":3462000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":3462000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1178000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1178000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":4824000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":4824000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":4824000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1254000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1254000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":2370000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":2370000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1116000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1116000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":3569000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":3569000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1199000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1199000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":4808000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":4808000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1172000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2433000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1261000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":3489000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1056000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":4494000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrent":{"label":"Liability, Pension and Other Postretirement and Postemployment Benefits, Current","description":"Amount of liability, recognized in statement of financial position, for pension, other postretirement and postemployment benefits, classified as current.","units":{"USD":[{"end":"2011-12-31","val":180000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":140000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2015-12-31","val":125000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":76000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":111000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":114000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":78000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":78000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":69000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":69000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":91000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":91000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":190000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":190000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":143000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":143000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":129000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":129000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":128000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":128000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":148000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesNoncurrent":{"label":"Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for pension, other postretirement and postemployment benefits, classified as noncurrent.","units":{"USD":[{"end":"2009-12-31","val":950000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1074000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":1074000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1277000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":1277000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1307000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":1340000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1225000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":1225000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1430000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1430000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1430000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1260000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1260000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1260000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1345000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":1345000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1154000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":1154000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1174000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":1174000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1318000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":1318000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1213000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":1213000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":845000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":845000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":775000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":775000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":704000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":704000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":689000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":689000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":770000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"PensionAndOtherPostretirementBenefitContributions":{"label":"Payment for Pension and Other Postretirement Benefits","description":"Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":140000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-09-30","val":44000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":57000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":57000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":30000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":56000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":152000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":152000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":174000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":174000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":174000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":24000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":24000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":44000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":44000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":60000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":60000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":16000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":16000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":33000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":33000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":58000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":58000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":75000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":75000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":75000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":26000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":26000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":29000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":29000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":30000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":30000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":121000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":121000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":121000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":21000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":21000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":42000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":42000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":75000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":75000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":25000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":25000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":50000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":50000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":52000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":52000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":54000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":54000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":54000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":2000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":2000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":6000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":6000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":10000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":10000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":75000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":75000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":75000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":18000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":18000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":38000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":38000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":58000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":58000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":78000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":78000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":3000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":9000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":29000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":37000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PensionAndOtherPostretirementBenefitsExpenseReversalOfExpenseNoncash":{"label":"Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash","description":"Amount of noncash expense (reversal of expense) for pension and other postretirement benefits.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":105000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-09-30","val":78000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":113000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":113000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":33000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":70000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":95000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":95000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":120000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":120000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":120000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":18000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":18000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":38000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":38000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":59000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":59000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":81000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":81000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":81000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":26000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":26000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":53000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":53000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":79000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":79000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":108000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":108000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":108000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":18000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":18000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":45000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":45000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":59000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":59000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":65000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":65000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":65000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":3000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":3000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":4000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":10000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":10000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":20000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":20000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":28000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":28000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":45000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":45000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":45000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":16000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":16000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":31000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":31000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":44000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":44000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":62000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":62000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":62000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":8000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":8000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":16000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":16000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":29000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":29000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":14000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":29000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":43000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":62000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PensionContributions":{"label":"Payment for Pension Benefits","description":"Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-22000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":29000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":-46000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":46000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":52000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":52000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":75000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":75000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":114000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":114000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-140000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":140000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":22000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":22000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":42000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":42000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":62000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":71000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":9000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":28000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"}]}},"PreferredStockAdditionalSeriesValue":{"label":"Preferred Stock, Additional Series, Value (Deprecated 2009-01-31)","description":"Value of each additional class of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2008-12-31","val":2875000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q4I"},{"end":"2009-03-31","val":2875000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"}]}},"PreferredStockDividendRatePercentage":{"label":"Preferred Stock, Dividend Rate, Percentage","description":"The percentage rate used to calculate dividend payments on preferred stock.","units":{"pure":[{"start":"2010-05-01","end":"2010-05-31","val":0.0675,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"}]}},"PreferredStockDividends":{"label":"Preferred Stock Dividends (Deprecated 2011-01-31)","description":"The amount of dividends declared or paid in the period to preferred shareholders, or the amount for which the obligation to pay them dividends arose in the period.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":-64000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":127000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":63000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":191000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":64000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2009-01-01","end":"2009-03-31","val":60000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":-60000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":120000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":120000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":60000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":60000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":174000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":174000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":54000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2009-07-01","end":"2009-09-30","val":54000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2010-01-01","end":"2010-03-31","val":48000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":48000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":63000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":15000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":63000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"}]}},"PreferredStockDividendsAndOtherAdjustments":{"label":"Preferred Stock Dividends and Other Adjustments","description":"The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":40000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":11000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":21000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":10000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":31000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":10000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-161000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-161000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-161000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"}]}},"PreferredStockDividendsIncomeStatementImpact":{"label":"Preferred Stock Dividends, Income Statement Impact","description":"The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-12000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":12000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-9000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":9000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":10000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":10000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":20000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":20000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":10000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":10000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":30000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":30000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":10000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":10000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":40000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":40000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":40000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":10000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":10000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":10000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":20000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":20000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":10000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":10000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":31000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":31000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":11000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":11000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":41000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":11000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":11000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":21000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":10000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":31000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":10000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"PreferredStockSharesAuthorized":{"label":"Preferred Stock, Shares Authorized","description":"The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.","units":{"shares":[{"end":"2008-12-31","val":50000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":50000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2012-12-31","val":50000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":50000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":50000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":50000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":50000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":50000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":50000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":50000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":50000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":50000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":50000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"PreferredStockValue":{"label":"Preferred Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2008-12-31","val":832000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q4I"},{"end":"2009-03-31","val":832000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"}]}},"PreviouslyEstimatedDevelopmentCostsIncurred":{"label":"Previously Estimated Development Costs Incurred","description":"Amount of increase in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":578000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":578000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":982000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":982000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":982000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":985000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":985000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":985000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":985000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":295000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":295000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"PreviouslyEstimatedDevelopmentCostsIncurredDuringPeriod":{"label":"Previously Estimated Development Costs Incurred During Period (Deprecated 2015-01-31)","description":"Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":578000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":578000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":982000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"ProceedsFromDebtNetOfIssuanceCosts":{"label":"Proceeds from Debt, Net of Issuance Costs","description":"The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.","units":{"USD":[{"end":"2020-07-27","val":1485000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q2I"}]}},"ProceedsFromDivestitureOfBusinesses":{"label":"Proceeds from Divestiture of Businesses","description":"The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":597000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"}]}},"ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates":{"label":"Proceeds from Divestiture of Businesses and Interests in Affiliates","description":"The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).","units":{"USD":[{"start":"2016-01-01","end":"2016-06-30","val":996000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2019-01-01","end":"2019-12-31","val":561000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":704000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":704000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":247000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":247000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":247000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":108000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":108000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":108000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":19000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"ProceedsFromDivestitureOfBusinessesNetOfCashDivested":{"label":"Proceeds from Divestiture of Businesses, Net of Cash Divested","description":"This element represents the cash inflow during the period from the sale of a component of the entity.","units":{"USD":[{"end":"2018-12-21","val":350000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-21","val":350000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-21","val":350000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"}]}},"ProceedsFromDividendsReceived":{"label":"Proceeds from Dividends Received","description":"Dividends received on equity and other investments during the current period.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-09-30","val":33000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":40000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"ProceedsFromIncomeTaxRefunds":{"label":"Proceeds from Income Tax Refunds","description":"The amount of cash received during the period as refunds for the overpayment of taxes.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":123000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":193000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":193000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":26000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":26000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":26000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":15000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":334000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":334000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":334000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":334000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":247000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":247000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":247000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":329000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":329000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":329000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":108000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":108000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":108000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":306000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-07-01","end":"2020-07-31","val":221000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-07-31","val":221000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2020-07-01","end":"2020-07-31","val":221000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-07-01","end":"2020-07-31","val":221000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q2I"},{"start":"2020-10-01","end":"2020-10-31","val":24000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2020-10-01","end":"2020-10-31","val":24000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-10-01","end":"2020-10-31","val":24000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3I"},{"start":"2020-01-01","end":"2020-12-31","val":265000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":265000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":265000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-03-01","end":"2021-03-31","val":23000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-03-01","end":"2021-03-31","val":23000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-03-01","end":"2021-03-31","val":23000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q1I"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":109000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":46000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":248000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"ProceedsFromIssuanceOfCommonStock":{"label":"Proceeds from Issuance of Common Stock","description":"The cash inflow from the additional capital contribution to the entity.","units":{"USD":[{"end":"2007-03-31","val":2800000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q1I"},{"start":"2007-01-01","end":"2007-12-31","val":2816000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"end":"2009-02-28","val":740000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-02-28","val":740000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q1I"},{"start":"2009-01-01","end":"2009-03-31","val":740000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":740000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":740000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":740000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":740000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":740000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":740000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":740000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":740000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":999000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":999000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-01-05","val":1970000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-01-05","val":1970000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"start":"2016-01-01","end":"2016-03-31","val":32000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":32000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":32000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":32000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":32000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":442000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":442000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":411000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1515000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1515000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1515000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"}]}},"ProceedsFromIssuanceOfConvertiblePreferredStock":{"label":"Proceeds from Issuance of Convertible Preferred Stock","description":"The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":2803000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"}]}},"ProceedsFromIssuanceOfDebt":{"label":"Proceeds from Issuance of Debt","description":"The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":52000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-12-31","val":70000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":9000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":23000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":23000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":37000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":37000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":3004000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":3004000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":3016000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":3016000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":3023000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":3023000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":3029000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3029000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3029000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":6615000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":6615000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":11021000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":11021000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":11229000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":11229000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":11501000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":11501000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":11501000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":11501000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1149000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1149000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1248000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1248000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":3346000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":3346000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":8710000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":8710000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":8710000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":8710000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2273000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":2273000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":2273000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4422000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":4422000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":6552000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":6552000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":8272000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":8272000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":8272000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":8272000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1796000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1796000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":1796000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":2811000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":2811000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":3463000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":3463000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":3681000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3681000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3681000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":157000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":157000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":606000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":606000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":795000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":795000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":955000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":955000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":955000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":122000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":122000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":352000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":352000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":475000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":475000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":632000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":632000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":632000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":114000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":114000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":328000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":328000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-08-01","end":"2019-08-31","val":1187000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q3I"},{"start":"2019-01-01","end":"2019-09-30","val":1681000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1681000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":1879000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1879000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1879000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":1478000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":1478000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-03-01","end":"2020-03-31","val":1285000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-03-01","end":"2020-03-31","val":1285000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q1I"},{"start":"2020-01-01","end":"2020-06-30","val":1585000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1585000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":3236000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":3236000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":3531000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":3531000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":3531000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":130000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":130000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":160000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":160000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":633000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":633000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":1201000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1201000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1201000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":604000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":604000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":4666000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":4666000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":5366000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":5366000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":5735000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":5735000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":5735000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":284000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":284000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":681000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":681000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":1186000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1186000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":1781000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1781000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1781000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":613000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":613000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1281000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1281000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":1948000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1948000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":2251000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2251000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1088000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1630000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":2180000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":3195000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ProceedsFromIssuanceOfLongTermDebt":{"label":"Proceeds from Issuance of Long-term Debt","description":"The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.","units":{"USD":[{"start":"2012-02-01","end":"2012-02-28","val":2970000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-02-01","end":"2012-02-28","val":2970000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-02-01","end":"2012-02-28","val":2970000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"}]}},"ProceedsFromIssuanceOfSeniorLongTermDebt":{"label":"Proceeds from Issuance of Senior Long-term Debt","description":"The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":5880000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"}]}},"ProceedsFromIssuanceOrSaleOfEquity":{"label":"Proceeds from Issuance or Sale of Equity","description":"The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":3500000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"}]}},"ProceedsFromLegalSettlements":{"label":"Proceeds from Legal Settlements","description":"Cash received for the settlement of litigation during the current period.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":125000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":125000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"ProceedsFromLinesOfCredit":{"label":"Proceeds from Lines of Credit","description":"Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":12450000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"}]}},"ProceedsFromMinorityShareholders":{"label":"Proceeds from Noncontrolling Interests","description":"Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":62000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"}]}},"ProceedsFromOtherDebt":{"label":"Proceeds from Other Debt","description":"Amount of cash inflow from debt classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":744000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":473000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":524000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":183000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":890000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":890000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":101000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":101000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":155000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":155000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":307000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":307000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":330000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":330000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":330000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":21000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":21000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":52000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":70000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":70000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":9000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2010-12-31","end":"2011-12-31","val":48000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2013-01-01","end":"2013-06-30","val":93000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":75000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"ProceedsFromOtherOperatingActivities":{"label":"Proceeds from Other Operating Activities","description":"Amount of cash inflow from operating activities classified as other.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":56000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ProceedsFromPaymentsForLongTermLoansForRelatedParties":{"label":"Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties","description":"The cash inflow or outflow associated with long-term loans for related parties where one party can exercise control or significant influence over another party, including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from (Payments for) Advances to Affiliates.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"}]}},"ProceedsFromPaymentsForOtherFinancingActivities":{"label":"Proceeds from (Payments for) Other Financing Activities","description":"Amount of cash inflow (outflow) from financing activities classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":-262000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":63000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":-3000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":-3000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":-3000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":-3000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":-5000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":-5000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":-4000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":-4000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":-4000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":-9000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":-9000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-9000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":-9000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-9000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-9000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":-10000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-10000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":-22000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":-22000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-22000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":-22000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":-51000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-72000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-415000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":-415000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":-213000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-213000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":-211000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-211000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-211000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-211000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-7000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-7000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-13000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-13000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-13000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-14000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-14000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":-15000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-15000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-20000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-20000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-20000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-17000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-17000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-17000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-23000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-23000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":-22000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-22000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":-38000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-38000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-38000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-5000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":-5000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-19000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":-19000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":-22000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":-22000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":-22000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-22000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-22000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":-18000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":-18000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":-19000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":-19000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-19000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-19000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":-7000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":-10000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-09-30","val":-30000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":-30000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-30000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-24000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-18000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-52000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-52000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-41000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-41000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-41000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-49000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-49000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-42000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":-2000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":-10000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-7000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-7000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-06-30","val":1000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-09-30","val":-38000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ProceedsFromPaymentsToMinorityShareholders":{"label":"Proceeds from (Payments to) Noncontrolling Interests","description":"Amount of cash inflow (outflow) from (to) a noncontrolling interest. Excludes dividends paid to the noncontrolling interest.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":0,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":0,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":100000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":100000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":100000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":133000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":133000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":33000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":33000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":165000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":165000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":165000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":32000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":32000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":74000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":74000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":42000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":42000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":115000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":115000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":41000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":41000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":41000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":41000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":88000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":88000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":47000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":135000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":135000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":47000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":182000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":182000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":182000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":47000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":47000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":94000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":94000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":47000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":142000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":142000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":189000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":189000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":189000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":50000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":50000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":50000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":50000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":50000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":0,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ProceedsFromRepaymentsOfDebt":{"label":"Proceeds from (Repayments of) Debt","description":"The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.","units":{"USD":[{"end":"2019-08-15","val":1187000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-08-15","val":1187000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-08-15","val":1485000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q3I"},{"end":"2020-03-04","val":1290000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2020-03-04","val":1290000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2020-03-04","val":1285000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q1I"},{"end":"2020-07-31","val":1485000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q2I"}]}},"ProceedsFromSaleAndCollectionOfReceivables":{"label":"Proceeds from Sale and Collection of Receivables","description":"The cash inflow associated with the proceeds from sale and collection of receivables during the period.","units":{"USD":[{"start":"2021-01-01","end":"2021-03-31","val":52400000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-12-31","val":431000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":431000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":444000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"}]}},"ProceedsFromSaleOfOilAndGasPropertyAndEquipment":{"label":"Proceeds from Sale of Oil and Gas Property and Equipment","description":"The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":3009000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":3009000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":2971000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":2971000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":2910000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2910000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2910000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"ProceedsFromSaleOfOtherAssetsInvestingActivities":{"label":"Proceeds from Sale of Other Assets, Investing Activities","description":"Amount of cash inflow from the sale of other assets recognized in investing activities.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":150000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":151000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":160000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":160000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":290000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":290000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":410000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":410000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":423000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":423000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":423000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-06-30","val":4000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":68000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":68000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":72000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":72000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":72000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":0,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":10000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":10000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":93000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":93000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":84000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":84000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":91000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":94000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":102000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":102000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":109000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":66000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":66000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":116000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":116000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":146000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-03-31","val":5000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":16000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":16000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":21000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-06-30","val":96000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":96000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":102000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":102000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-06-30","val":11000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-09-30","val":16000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"}]}},"ProceedsFromSaleOfProductiveAssets":{"label":"Proceeds from Sale of Productive Assets","description":"The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":260000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":21000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-12-31","val":47000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":47000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":3000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2008-12-31","end":"2009-12-31","val":25000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":25000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-12-31","end":"2010-12-31","val":20000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1709000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1709000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1709000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":996000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":996000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2020-01-01","end":"2020-09-30","val":146000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":21000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"}]}},"ProceedsFromStockOptionsExercised":{"label":"Proceeds from Stock Options Exercised","description":"Amount of cash inflow from exercise of option under share-based payment arrangement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":2000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":2000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":2000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":51000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":51000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":51000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":106000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":184000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":189000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":210000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":210000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":210000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":101000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":101000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":106000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":106000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":106000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":106000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":125000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":125000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":125000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":31000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":31000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":34000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":34000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":41000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":41000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":47000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":47000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":47000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":4000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":4000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":26000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":26000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":27000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":27000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":29000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":29000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":12000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ProfitLoss":{"label":"Net Income (Loss), Including Portion Attributable to Noncontrolling Interest","description":"The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":3779000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-06-30","val":2789000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":1284000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":3531000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":742000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":-10450000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":-10450000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":207000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":207000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":1019000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":1019000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-03-31","end":"2009-06-30","val":812000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-04-01","end":"2009-06-30","val":812000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":812000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":2222000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":2222000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1203000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":1203000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":1203000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":3534000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":3534000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":3534000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-10-01","end":"2009-12-31","val":1312000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":1215000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-30","end":"2010-03-31","val":1215000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":1215000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":1215000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":2047000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":2047000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":832000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-03-31","end":"2010-06-30","val":832000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":832000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":832000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":3580000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":3580000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1533000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":1533000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-07-01","end":"2010-09-30","val":1533000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1533000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":5544000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":5544000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":5544000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":1964000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-10-01","end":"2010-12-31","val":1964000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1861000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1861000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":1861000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":1861000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":3587000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":3587000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":1726000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1726000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1726000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1726000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-09-30","val":4881000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4881000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1294000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1294000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":1294000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":1294000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":5747000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":5747000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":5747000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":866000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-10-01","end":"2011-12-31","val":866000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":1001000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":1001000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":1001000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":1001000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1895000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":1895000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":894000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":894000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":894000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":894000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3035000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":3035000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1140000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":1140000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":1140000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1140000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":3980000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3980000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3980000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":945000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":945000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":824000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":824000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":824000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":824000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1434000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":1434000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":610000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":610000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-04-01","end":"2013-06-30","val":610000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":610000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":2482000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":2482000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1048000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1048000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-07-01","end":"2013-09-30","val":1048000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1048000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3441000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3441000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3441000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":3441000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":959000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-10-01","end":"2013-12-31","val":959000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":626000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":626000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":626000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":626000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":626000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1286000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1286000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":660000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":660000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":660000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":660000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":660000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1990000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1990000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":704000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":704000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":704000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":704000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":704000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-745000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-745000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-745000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-745000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-2735000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-2735000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":-2735000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2406000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-4205000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":-4205000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1799000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":-1799000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":-1799000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-1799000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-04-01","end":"2015-06-30","val":-1799000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-7995000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":-7995000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3790000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":-3790000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":-3790000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3790000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3790000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-12089000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-12089000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12089000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-12089000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-4094000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":-4094000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":-4094000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":-4101000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":-4101000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":-4101000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":-4101000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":-4101000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-4511000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":-4511000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-410000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-410000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":-410000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":-410000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":-4225000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":-4225000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":286000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":286000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":286000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":286000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":-4025000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-4025000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-4025000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":200000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":200000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":306000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":306000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":306000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":306000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":641000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":641000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":335000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":335000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":335000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":335000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":886000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":886000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":245000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":245000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":245000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":245000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2095000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":2095000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":2095000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1209000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1209000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":817000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":817000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":817000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":817000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1852000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1852000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1035000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1035000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":1035000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1035000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":2516000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2516000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":664000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":664000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":664000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":664000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":2894000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2894000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2894000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":378000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":378000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":76000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":76000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":76000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":2000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":-74000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":-232000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":-232000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-234000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":-234000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":-234000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":-189000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-189000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-189000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":43000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":-549000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":-549000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-425000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":-425000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":124000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":124000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":7000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":7000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":432000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":432000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":865000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":953000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":953000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":2284000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":2284000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1331000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1331000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":4007000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":4007000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1723000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1723000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":5365000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1904000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1904000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2942000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2942000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1038000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1038000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":3502000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":3502000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":560000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":560000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":4479000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1049000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1049000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1780000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1780000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":731000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":731000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":2744000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":2744000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":964000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3751000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1162000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":2442000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1280000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":3678000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":3678000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1236000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1236000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":4399000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":4399000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":793000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2340000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1547000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":3587000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1247000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":4152000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"PropertyPlantAndEquipmentGross":{"label":"Property, Plant and Equipment, Gross","description":"Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2009-12-31","val":21788000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":23379000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":23379000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":25975000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":25975000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":29650000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":29650000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":34249000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":34249000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":37484000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":37484000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":33178000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":40251000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":35743000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":35398000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":35956000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":35956000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":37082000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":64796000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":71105000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":71105000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":73357000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":73357000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":74883000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":74883000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":77018000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":77018000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":80900000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":80900000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":84567000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":84567000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":89795000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":62345000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":66430000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2009-12-31","val":16195000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":16785000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":16785000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":16785000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":16785000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":16785000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":17076000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":17500000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":17966000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":18449000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":18449000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":18449000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":18449000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":18449000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":18986000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19613000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":20294000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":20999000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":20999000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":20999000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":20999000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":20999000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":21689000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":46214000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":46647000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":24042000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":24042000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":24042000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":24042000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":24042000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":24729000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":25407000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":26304000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":26220000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":26220000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":26220000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":26220000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":26220000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":22927000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":26595000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":27095000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":27355000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":27509000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":27509000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":24248000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":24246000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":24246000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":24246000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":23986000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":27376000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":24132000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":23609000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":23415000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":23219000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":23219000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":23219000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":23219000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":23219000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":23117000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":23067000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":22914000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":22836000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":22844000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":22934000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":22934000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":22994000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":22792000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":22923000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":23013000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":28010000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":28010000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":28010000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":28010000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":28010000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":28497000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":28841000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":29330000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":29584000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":29584000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":29584000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":29584000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":29584000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":29899000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":29936000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":29911000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":29818000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":29818000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":29818000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":29818000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":29818000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":29775000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":29836000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":30102000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":30345000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":30345000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":30345000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":30345000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":30345000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":30708000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":31200000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":31814000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":32627000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":32627000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":32627000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":32627000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":32627000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":33159000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":33845000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":34535000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":35295000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":35295000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":35295000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":35295000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":35295000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":36197000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":36784000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":37750000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":38514000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":38514000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":38514000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":38514000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":38514000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":39200000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":39835000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":40257000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":40736000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy":{"label":"Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":17000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":17000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReserveNetEnergy":{"label":"Proved Developed and Undeveloped Reserve, Net (Energy)","description":"Energy measure of proved reserve of oil and gas, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"end":"2013-12-31","val":464000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":390000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":390000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":252000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":252000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":18000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":18000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"ProvedDevelopedAndUndevelopedReserveProductionEnergy":{"label":"Proved Developed and Undeveloped Reserve, Production (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from production, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2014-01-01","end":"2014-12-31","val":57000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":53000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":48000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":48000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy":{"label":"Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)","description":"Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-102000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-102000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Boe":[{"start":"2014-01-01","end":"2014-12-31","val":62000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":187000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":187000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"ProvedDevelopedReservesBOE1":{"label":"Proved Developed Reserves (Energy)","description":"Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.","units":{"Boe":[{"end":"2014-12-31","val":246000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":169000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":169000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":18000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":18000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"ProvedUndevelopedReserveBOE1":{"label":"Proved Undeveloped Reserves (Energy)","description":"Energy measure of proved undeveloped reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.","units":{"Boe":[{"end":"2014-12-31","val":144000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":83000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":83000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"ReceivablesNetCurrent":{"label":"Receivables, Net, Current","description":"The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.","units":{"USD":[{"end":"2013-06-30","val":1879000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2229000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2562000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2562000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2562000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":2562000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":2562000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2377000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2758000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2307000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2563000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves":{"label":"Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves","description":"Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":2500000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":6400000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":6400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"}]}},"RedeemableNoncontrollingInterestEquityCarryingAmount":{"label":"Redeemable Noncontrolling Interest, Equity, Carrying Amount","description":"As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.","units":{"USD":[{"end":"2015-12-31","val":764000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"RepaymentsOfDebt":{"label":"Repayments of Debt","description":"The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":7625000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":815000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1250000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":1991000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":3812000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":3812000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1633000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1633000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":2297000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":2297000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":2410000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":2410000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":2717000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":2717000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":2717000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1356000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1356000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1563000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1563000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":2917000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":2917000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":3197000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":3197000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":3197000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":1242000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":1242000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1527000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1527000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":3105000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":3105000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":3724000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":3724000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":3724000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":32000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":32000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":179000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":179000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":672000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":672000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":1461000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1461000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1461000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":434000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":434000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":2993000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":2993000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":4073000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":4073000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":4515000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":4515000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":4515000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1273000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1273000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1806000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1806000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":2397000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":2397000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":2980000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":2980000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":2980000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":612000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":612000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1281000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1281000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":1699000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1699000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":2731000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2731000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":636000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1338000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":1843000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":2777000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"RepaymentsOfDebtAndCapitalLeaseObligations":{"label":"Repayments of Debt and Lease Obligation","description":"Amount of cash outflow for short-term and long-term debt and lease obligation.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":1655000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":1678000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-12-31","val":1724000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":13000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1288000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":1288000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":1303000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1303000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-12-31","val":1313000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":1313000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":3159000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":3159000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":3171000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":3171000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":3179000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":3179000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":3186000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":3186000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":3186000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":39000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":39000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":4541000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":4541000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":4816000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":4816000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-12-31","val":5476000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5476000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5476000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":5476000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":987000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":987000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1611000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1611000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-01-01","end":"2014-09-30","val":4196000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":4196000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-01-01","end":"2014-12-31","val":10306000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":10306000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":10306000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":10306000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":802000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":802000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":802000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2360000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":2360000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":4693000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":4693000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":6677000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":6677000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":6677000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":6677000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1442000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1442000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":1442000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3649000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":3649000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":4539000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":4539000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":7625000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":7625000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":815000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1250000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":1991000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-12-31","val":3812000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"}]}},"RepaymentsOfLinesOfCredit":{"label":"Repayments of Lines of Credit","description":"Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":12450000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009"}]}},"RepaymentsOfOtherDebt":{"label":"Repayments of Other Debt","description":"Amount of cash outflow for the payment of debt classified as other.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":1069000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":-118000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":384000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":198000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":766000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-01-01","end":"2008-12-31","val":766000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2009-01-01","end":"2009-03-31","val":225000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":-225000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-06-30","val":285000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-06-30","val":285000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":1066000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-01-01","end":"2009-09-30","val":1066000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":1380000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":1380000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-01-01","end":"2009-12-31","val":1380000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":326000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-03-31","val":326000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-06-30","val":1655000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-09-30","val":1678000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":1724000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":1724000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":13000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"},{"start":"2010-12-31","end":"2011-12-31","val":1313000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2013-01-01","end":"2013-06-30","val":75000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":127000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"RestrictedCashAndCashEquivalentsAtCarryingValue":{"label":"Restricted Cash and Cash Equivalents, Current","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1168000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2017-12-31","val":52000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":52000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":52000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":52000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":123000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":120000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":116000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":110000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":110000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":110000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":110000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":110000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":115000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":218000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":100000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":113000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":132000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":103000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":97000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":106000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":116000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":114000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":114000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":114000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":114000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":114000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":114000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":117000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":119000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":112000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":111000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":111000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":111000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":111000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":111000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":118000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":119000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":697000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":1208000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":1208000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":1208000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":1208000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":1208000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":1034000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":1030000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":1117000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":888000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":888000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":888000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":888000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":888000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":460000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":230000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":230000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":230000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"RestrictedCashAndCashEquivalentsNoncurrent":{"label":"Restricted Cash and Cash Equivalents, Noncurrent","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2017-12-31","val":132000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":132000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":132000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":132000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":127000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":127000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":127000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":128000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":128000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":128000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":128000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":128000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":164000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":165000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":165000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":158000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":152000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":132000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":149000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":149000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":149000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":149000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":149000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":149000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":149000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":140000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":133000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":132000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":132000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":132000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":132000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":132000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":133000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":134000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":134000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":133000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":133000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":133000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":133000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":133000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":134000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":134000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":97000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":98000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":99000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":99000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":103000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":104000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":105000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":119000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"RestrictedCashAndInvestmentsNoncurrent":{"label":"Restricted Cash and Investments, Noncurrent","description":"The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.","units":{"USD":[{"end":"2012-12-31","val":163000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":392000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":392000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":172000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":172000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":172000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":171000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":171000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":171000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":182000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":182000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":189000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":189000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":181000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":181000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":196000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":196000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":213000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":213000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":209000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":209000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":182000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":182000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":212000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":212000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":217000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":217000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":232000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"RestructuringCharges":{"label":"Restructuring Charges","description":"Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":0,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":0,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-12-30","end":"2009-03-31","val":34000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-03-31","val":25000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":25000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2009-01-01","end":"2009-06-30","val":23000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":23000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":-2000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":-2000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":23000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":23000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":32000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":23000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2015-07-01","end":"2015-09-30","val":36000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":46000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":45000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-06-30","val":39000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"}]}},"RestructuringCosts":{"label":"Restructuring Costs","description":"Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2016-01-01","end":"2016-06-30","val":-39000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":37000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"}]}},"RestructuringCostsAndAssetImpairmentCharges":{"label":"Restructuring Costs and Asset Impairment Charges","description":"Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2015-07-01","end":"2015-09-30","val":95000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":95000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":92000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":156000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":64000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":53000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-10-01","end":"2015-12-31","val":53000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-07-01","end":"2016-09-30","val":17000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":33000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4"}]}},"RestructuringReserve":{"label":"Restructuring Reserve","description":"Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.","units":{"USD":[{"end":"2008-12-31","val":38000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"}]}},"RestructuringReservePeriodExpense":{"label":"Restructuring Reserve, Period Expense (Deprecated 2012-01-31)","description":"Reserve increase representing the amount charged against earnings in the period for a specified incurred and estimated type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":17000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"}]}},"RestructuringReserveSettledWithCash":{"label":"Restructuring Reserve, Settled With Cash (Deprecated 2013-01-31)","description":"Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-16000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"}]}},"RestructuringSettlementAndImpairmentProvisions":{"label":"Restructuring, Settlement and Impairment Provisions","description":"Amount of restructuring charges, remediation cost, and asset impairment loss.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":256000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":119000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":134000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":40000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"}]}},"ResultsOfOperationsDepreciationDepletionAndAmortizationAndValuationProvisions":{"label":"Results of Operations, Depreciation, Depletion and Amortization, and Valuation Provisions","description":"Depreciation, depletion and amortization, and valuation provisions (impairments) related to oil and gas producing activities.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":1358000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":1358000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":1358000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":1358000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":2265000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2265000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2265000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":2265000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1772000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1772000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1772000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1772000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":839000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":839000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":839000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ResultsOfOperationsIncomeTaxExpense":{"label":"Results of Operations, Income Tax Expense","description":"Income tax expense for oil and gas producing activities.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":219000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":219000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":219000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":219000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-958000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-958000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-958000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-958000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-5368000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-5368000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-5368000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-5368000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ResultsOfOperationsOilAndGasProducingActivitiesNetIncomeExcludingCorporateOverheadAndInterestCosts":{"label":"Results of Operations, Oil and Gas Producing Activities Net Income (Excluding Corporate Overhead and Interest Costs)","description":"The results of operations for oil and gas producing activities, excluding corporate overhead and interest costs.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":357000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":357000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":357000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":357000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1571000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-1571000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1571000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-1571000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-8769000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-8769000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-8769000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-8769000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-5472000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-5472000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-5472000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ResultsOfOperationsProductionOrLiftingCosts":{"label":"Results of Operations, Production or Lifting Costs","description":"Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":682000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":682000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":682000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":682000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1237000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1237000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1237000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":1237000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1215000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1215000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1215000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1215000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1829000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1829000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1829000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"ResultsOfOperationsRevenueFromOilAndGasProducingActivities":{"label":"Results of Operations, Revenue from Oil and Gas Producing Activities","description":"Total revenues from oil and gas producing activities.","units":{"USD":[{"start":"2013-06-01","end":"2013-12-31","val":2616000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":2616000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":2616000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":2616000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":4710000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":4710000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":4710000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":4710000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1994000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1994000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1994000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1994000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1513000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1513000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1513000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2008-12-31","val":-8267000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":-8267000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":-8267000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":-8267000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":-8224000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":-7636000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":-6711000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":-5805000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":-5805000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":-5805000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":-5805000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":-5805000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":-4973000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":-4466000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":-3429000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":-2590000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":-2590000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":-2590000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":-2590000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":-2590000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":-1328000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":-672000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":144000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":546000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":546000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":546000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":546000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":546000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1013000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1426000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1953000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2399000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":2399000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":2399000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":2399000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2399000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2750000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1865000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2361000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2742000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":2742000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":2742000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":2742000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":2742000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":2926000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3081000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3306000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":-2398000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":-4417000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":-8305000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":-12387000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":-16570000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":-16570000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":-17049000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":-16832000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":-16540000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":-16540000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":-16540000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":-16540000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":-16540000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":-16311000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":-16043000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":-15763000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":-14722000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":-14722000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":-14722000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":-14722000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":-14722000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":-14030000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":-13161000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":-12526000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":-12041000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":-12041000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":-12041000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":-12041000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":-12041000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":-12010000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":-12082000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":-12289000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":-12280000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":-12280000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":-12280000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":-12280000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":-12280000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":-12771000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":-12718000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":-12389000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":-11681000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":-11681000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":-11681000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":-11681000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":-11681000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":-10963000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":-9880000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":-8481000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":-7375000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":-7375000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":-7375000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":-7375000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":-7375000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":-5848000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":-5008000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":-4604000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":-3907000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":-3907000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":-3907000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":-3907000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":-3907000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":-3244000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":-2901000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":-2447000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":-2059000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":-2059000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":-2059000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":-2059000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":-2059000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":-1586000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":-970000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":-444000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":-170000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":-170000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":-170000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":-170000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":-170000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":182000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":738000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":1196000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":1385000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"RevenueFromContractWithCustomerExcludingAssessedTax":{"label":"Revenue from Contract with Customer, Excluding Assessed Tax","description":"Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":14564000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":3215000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":6892000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":3677000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":11065000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":4173000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":15888000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":15888000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":4985000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":4985000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10197000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":10197000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":5212000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":5212000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":15223000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":15223000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":5026000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":5026000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":18945000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":18945000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":18945000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":3672000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3672000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":7327000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":7327000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3655000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3655000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":10531000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":10531000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3204000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3204000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":14348000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":14348000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":14348000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":3029000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":3029000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":5904000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":5904000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":2875000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":2875000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":9646000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":9646000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":3742000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":3742000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":13894000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":13894000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":13894000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":4671000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":4671000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":10286000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":10286000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":5615000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":5615000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":16480000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":16480000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":6194000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":6194000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":22422000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":22422000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":22422000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":6363000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":6363000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":12532000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":12532000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":6169000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":6169000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":17841000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":17841000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":5309000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":5309000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":23271000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":23271000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":23271000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":5116000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":5116000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":11043000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":11043000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":5927000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":5927000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":16907000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":16907000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":5864000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":5864000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":22703000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":22703000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":22703000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":6211000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":6211000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":12609000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":12609000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":6398000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":6398000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":19289000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":19289000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":6680000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":6680000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":25169000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":25169000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":5574000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":13100000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":7526000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":19919000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":6819000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":25186000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"RevenueFromRelatedParties":{"label":"Revenue from Related Parties","description":"Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"RevenueMineralSales":{"label":"Revenue Mineral Sales (Deprecated 2018-01-31)","description":"Aggregate revenue from the sale of minerals and related products, and from rendering services such as exploration, development, mining, processing and providing mining support activities.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":17796000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-30","end":"2009-03-31","val":2602000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q1"},{"start":"2009-03-31","end":"2009-06-30","val":3684000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q2"},{"start":"2009-07-01","end":"2009-09-30","val":4144000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":15040000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":15040000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-10-01","end":"2009-12-31","val":4610000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4"},{"start":"2009-12-30","end":"2010-03-31","val":4363000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q1"},{"start":"2009-12-30","end":"2010-03-31","val":4363000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-03-31","val":4363000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2010-01-01","end":"2010-06-30","val":8227000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-03-31","end":"2010-06-30","val":3864000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q2"},{"start":"2010-03-31","end":"2010-06-30","val":3864000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-04-01","end":"2010-06-30","val":3864000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":13379000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":5152000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":5152000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":5152000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":18982000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":18982000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":18982000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-10-01","end":"2010-12-31","val":5603000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4"},{"start":"2010-10-01","end":"2010-12-31","val":5603000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-12-30","end":"2011-03-31","val":5709000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":5709000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":5709000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2011-01-01","end":"2011-03-31","val":5709000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":11523000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":11523000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-03-31","end":"2011-06-30","val":5814000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":5814000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-04-01","end":"2011-06-30","val":5814000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":5814000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":16718000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-09-30","val":16718000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":5195000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":5195000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":5195000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2011-07-01","end":"2011-09-30","val":5195000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":20880000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":20880000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-10-01","end":"2011-12-31","val":4162000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4"},{"start":"2011-10-01","end":"2011-12-31","val":4162000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":4605000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":4605000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2012-01-01","end":"2012-03-31","val":4605000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-03-31","val":4605000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-06-30","val":9080000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":4475000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":4475000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-04-01","end":"2012-06-30","val":4475000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":13497000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":4417000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":4417000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-07-01","end":"2012-09-30","val":4417000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":18010000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":18010000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-10-01","end":"2012-12-31","val":4513000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4"},{"start":"2012-10-01","end":"2012-12-31","val":4513000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2013-01-01","end":"2013-03-31","val":4583000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":4583000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-04-01","end":"2013-06-30","val":4288000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":6165000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":20921000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":5885000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4"}]}},"Revenues":{"label":"Revenues","description":"Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":20001000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3771000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":3938000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":3382000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":14607000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":14607000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":3516000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":3242000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-03-31","val":3242000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":3242000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6576000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":3334000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-04-01","end":"2016-06-30","val":3334000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":3334000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":10453000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":3877000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-07-01","end":"2016-09-30","val":3877000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":3877000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":14830000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":14830000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":14830000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":4377000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-10-01","end":"2016-12-31","val":4377000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":3341000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":3341000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":3341000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":3341000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":7052000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":7052000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":3711000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":3711000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":3711000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":3711000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":11362000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":11362000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":4310000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":4310000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":4310000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":4310000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":16403000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":16403000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":16403000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":5041000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":5041000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":4868000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":4868000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":4868000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":4868000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":10036000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":10036000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":5168000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":5168000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":5168000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":5168000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":14944000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":14944000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":4908000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":4908000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":4908000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":4908000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":18628000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":18628000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":18628000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":3684000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":3684000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":3792000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3792000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":3792000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":7338000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":7338000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3546000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3546000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":3546000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":10491000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":10491000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3153000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3153000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":3153000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":14402000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":14402000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":14402000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":3911000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":2798000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":2798000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":5852000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":5852000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":3054000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":3054000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":9703000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":9703000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":3851000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":3851000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":14198000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":14198000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":14198000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":4850000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":4850000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":10598000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":10598000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":5748000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":5748000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":16681000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":16681000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":6083000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":6083000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":22845000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":22845000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":22845000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":6603000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":6603000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":12019000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":12019000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":5416000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":5416000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":17022000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":17022000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":5003000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":5003000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":22780000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":22780000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":22780000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":5389000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":5389000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":11126000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":11126000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":5737000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":5737000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":16950000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":16950000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":5824000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":5824000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":22855000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":22855000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":22855000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":6321000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":6321000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":12945000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":12945000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":6624000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":6624000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":19735000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":19735000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":6790000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":6790000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":25455000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":25455000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":5728000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":13310000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":7582000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":20282000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":6972000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":25915000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"RevenuesFromTransactionsWithOtherOperatingSegmentsOfSameEntity":{"label":"Segment Reporting Information, Intersegment Revenue (Deprecated 2013-01-31)","description":"Amount of revenue from transactions with other operating segments of the same entity.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"}]}},"RevisionsOfPreviousQuantityEstimates":{"label":"Revisions of Previous Quantity Estimates","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of revisions of estimated quantity of oil and gas in proved reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":102000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":102000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":102000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":102000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":399000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":399000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":399000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":399000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1170000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-1170000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-1170000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-1170000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"RoyaltyExpense":{"label":"Royalty Expense","description":"Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":113000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":147000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":156000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2016-01-01","end":"2016-12-31","val":138000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":22000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":66000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":44000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":112000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":46000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":181000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":181000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":69000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":69000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":142000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":142000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":73000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":73000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":217000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":217000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":75000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":75000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":246000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":246000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":246000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":30000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":30000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":49000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":49000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":19000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":19000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":73000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":73000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":24000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":24000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":113000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":113000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":113000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":20000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":20000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":46000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":46000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":26000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":26000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":102000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":102000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":56000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":56000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":165000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":165000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":165000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":63000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":63000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":145000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":145000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":82000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":82000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":242000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":242000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":97000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":97000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":95000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":95000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":206000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":206000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":111000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":111000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":289000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":289000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":83000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":83000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":366000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":366000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":366000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":60000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":60000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":154000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":154000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":94000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":94000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":234000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":234000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":80000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":80000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":346000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":346000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":346000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":120000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":120000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":213000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":213000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":93000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":93000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":344000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":344000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":131000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":131000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":442000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":442000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":68000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":203000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":135000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":310000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":107000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":354000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts":{"label":"Sales and Transfers of Oil and Gas Produced, Net of Production Costs","description":"Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of sales and transfers of oil and gas produced.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-2296000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":-2296000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-06-01","end":"2013-12-31","val":-2296000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":-2296000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-3062000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-3062000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3062000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-3062000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-928000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-928000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-928000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-928000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-831000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-831000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"SalesRevenueNet":{"label":"Revenue, Net (Deprecated 2018-01-31)","description":"Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":20880000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":9080000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":4475000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":13497000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":4417000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":18010000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":18010000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":4583000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2013-01-01","end":"2013-03-31","val":4583000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":8871000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":8871000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":4288000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":4288000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":4288000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":15036000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":15036000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":6165000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":6165000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":6165000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":20921000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":20921000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":20921000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":19331000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":5885000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":4985000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":4985000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":4985000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2014-01-01","end":"2014-03-31","val":4985000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":4679000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":10507000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":10507000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":5522000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":5522000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":5522000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":5522000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":5136000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":16203000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":16203000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":5696000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":5696000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":5696000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":5696000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":5317000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":21438000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":21438000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":20001000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":5235000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":5235000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":4869000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":4153000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":4153000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":4153000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":3771000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-03-31","val":3771000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":8401000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":7709000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":4248000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":4248000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":3938000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":3938000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":12082000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":11091000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3681000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":3681000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":3382000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":3382000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":15877000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":14607000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":3795000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":3516000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":3527000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":3242000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":6576000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":3334000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":10453000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3877000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets":{"label":"Segment Reporting Information, Expenditures for Additions to Long-Lived Assets (Deprecated 2011-01-31)","description":"Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":2708000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":894000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":375000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":1138000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":244000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":1587000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":231000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":527000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":296000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":877000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":350000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1412000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":505000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"}]}},"SegmentReportingInformationIntersegmentRevenue":{"label":"Segment Reporting Information, Intersegment Revenue (Deprecated 2011-01-31)","description":"Amount of revenue from transactions with other operating segments of the same entity. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":0,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"}]}},"SegmentReportingInformationRevenueFromExternalCustomers":{"label":"Segment Reporting Information, Revenue from External Customers (Deprecated 2011-01-31)","description":"Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":17796000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-06-30","val":6286000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":3684000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":10430000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":4144000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":15040000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2010-01-01","end":"2010-03-31","val":4363000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":8227000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":3864000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":13379000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":5152000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":18982000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":5709000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1"}]}},"SelfInsuranceReserve":{"label":"Self Insurance Reserve","description":"Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.","units":{"USD":[{"end":"2012-12-31","val":52000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":52000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":64000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":66000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":66000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":58000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":57000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":60000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":52000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":50000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":62000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":62000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":58000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":54000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":55000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"SelfInsuranceReserveCurrent":{"label":"Self Insurance Reserve, Current","description":"Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer).","units":{"USD":[{"end":"2012-12-31","val":8000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":8000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":8000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":7000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":7000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":7000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":10000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":11000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":9000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":11000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":10000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":11000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":14000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":14000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"SelfInsuranceReserveNoncurrent":{"label":"Self Insurance Reserve, Noncurrent","description":"Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid after one year (or the normal operating cycle, if longer).","units":{"USD":[{"end":"2011-12-31","val":50000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":44000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":44000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":56000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":56000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":56000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":59000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":59000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":59000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":51000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":51000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":47000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":49000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":41000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":41000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":51000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":52000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":47000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":40000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":41000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"SellingGeneralAndAdministrativeExpense":{"label":"Selling, General and Administrative Expense","description":"The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":466000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":84000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":210000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":126000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":300000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":90000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":269000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":269000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":62000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":62000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":151000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":151000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":89000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":89000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":225000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":225000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":74000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":74000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":321000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":321000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":321000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":95000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":95000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":196000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":196000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":101000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":101000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":277000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":277000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":81000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":81000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":381000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":381000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":381000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":114000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":114000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":221000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":221000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":107000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":107000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":323000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":323000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":102000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":102000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":415000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":415000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":415000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":104000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":104000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":201000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":201000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":97000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":97000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":311000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":311000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":110000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":110000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":431000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":431000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":431000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":113000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":113000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":299000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":299000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":186000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":186000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":457000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":457000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":158000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":158000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":657000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":657000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":657000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":645000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":135000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":135000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":299000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":299000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":164000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":164000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":457000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":457000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":158000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":158000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":592000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":592000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":580000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":580000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":154000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":154000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":151000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":305000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":299000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":151000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":148000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":429000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":421000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":122000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":569000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":558000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":558000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":558000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":140000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":138000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":138000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":298000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":298000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":160000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":160000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":408000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":408000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":110000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":110000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":607000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":607000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":597000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":153000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":151000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":260000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":258000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":107000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":107000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":366000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":362000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":106000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":104000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":484000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":477000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":477000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":131000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":131000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":240000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":240000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":109000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":109000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":341000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":341000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":101000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":101000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":443000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":443000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":422000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":112000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":112000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":209000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":199000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":97000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":92000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":315000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":300000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":106000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":101000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":414000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":394000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":394000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":110000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":110000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":201000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":201000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":91000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":91000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":273000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":273000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":72000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":72000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":370000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":370000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":370000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":100000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":100000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":187000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":187000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":87000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":87000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":289000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":289000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":102000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":102000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":383000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":383000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":383000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":115000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":115000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":215000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":215000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":100000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":100000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":313000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":313000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":98000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":98000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":420000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":420000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":420000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":126000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":126000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":241000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":241000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":115000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":115000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":359000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":359000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":118000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":118000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":479000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":479000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":479000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":144000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":144000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":267000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":267000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":123000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":123000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":384000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":384000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":117000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":117000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":513000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":513000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":154000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":281000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":127000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":412000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":131000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":545000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"SeniorLongTermNotes":{"label":"Senior Notes, Noncurrent","description":"Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.","units":{"USD":[{"end":"2008-12-31","val":6884000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q4I"},{"end":"2008-12-31","val":6884000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":6884000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2009-03-31","val":6883000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":6542000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":6350000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"}]}},"SettlementLiabilitiesCurrent":{"label":"Settlement Liabilities, Current","description":"Amounts payable for money transfers, money orders, and consumer payment service arrangements. Settlement liabilities include amounts payable to intermediaries for global payment transfers.","units":{"USD":[{"end":"2021-06-30","val":130000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":130000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"}]}},"ShareBasedCompensation":{"label":"Share-based Payment Arrangement, Noncash Expense","description":"Amount of noncash expense for share-based payment arrangement.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":144000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":47000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":92000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-01-01","end":"2008-09-30","val":113000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-01-01","end":"2008-12-31","val":98000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":98000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":33000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":33000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":57000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":57000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-01-01","end":"2009-09-30","val":75000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":75000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2008-12-31","end":"2009-12-31","val":102000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":102000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":102000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":47000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":47000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":75000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":75000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-01-01","end":"2010-09-30","val":93000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":93000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":121000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":121000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":121000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":43000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":43000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":69000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":69000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":92000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":92000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2010-12-31","end":"2011-12-31","val":117000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":117000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":117000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":32000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":32000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":54000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":54000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-01-01","end":"2012-09-30","val":77000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":77000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":100000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":41000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":41000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":65000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":65000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-01-01","end":"2013-09-30","val":94000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":173000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":173000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":173000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":173000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":28000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":69000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-12-31","val":106000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":106000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":106000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":106000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":85000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":85000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":85000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":85000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":30000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":42000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-12-31","val":86000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":86000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":86000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":34000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":34000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":44000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":44000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-01-01","end":"2017-09-30","val":58000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":49000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":49000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":60000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":60000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-01-01","end":"2018-09-30","val":70000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":70000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":76000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":29000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":29000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":40000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":40000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":52000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":52000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":27000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":27000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":43000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":43000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":60000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":60000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":41000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":41000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":56000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":56000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":79000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":79000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":49000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":49000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":62000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":62000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":75000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":75000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":53000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":53000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":72000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":72000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":89000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":89000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":109000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":109000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":109000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":53000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":53000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":77000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":77000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":94000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":94000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":109000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":109000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":54000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":74000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":98000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":121000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationCost":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost (Deprecated 2012-01-31)","description":"Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":95000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":107000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":107000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":122000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":122000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-12-31","end":"2011-12-31","val":115000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsShareBasedLiabilitiesPaid":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid","description":"Amount of cash paid to settle liability for award under share-based payment arrangement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":8000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":15000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":15000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":15000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":8000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":17000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":17000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":17000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":29000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":55000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":50000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":35000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":22000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate","description":"The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.02,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.008,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":0.008,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":0.008,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.018,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.018,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.031,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Deprecated 2012-01-31)","description":"The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":4.6,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":4.37,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":4.37,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":4.61,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":4.61,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-12-31","end":"2011-12-31","val":4.34,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate","description":"The risk-free interest rate assumption that is used in valuing an option on its own shares.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.033,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0.015,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":0.015,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.022,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":0.022,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":0.022,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.016,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.016,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.007,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate","description":"Rate of weighted-average expected volatility for award under share-based payment arrangement.","units":{"pure":[{"start":"2008-01-01","end":"2008-12-31","val":0.493,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0.706,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":0.706,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":0.519,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":0.519,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":0.519,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":0.509,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.509,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":0.52,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized","description":"Number of shares authorized for issuance under share-based payment arrangement.","units":{"shares":[{"end":"2016-12-31","val":72000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":72000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":72000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":72000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":72000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":72000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":72000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":72000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":72000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":43800000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant","description":"The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.","units":{"shares":[{"end":"2016-12-31","val":71900000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":64700000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":58600000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":46900000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":39700000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":30700000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":25500000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":20500000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":15000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":40500000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value (Deprecated 2011-01-31)","description":"The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":264000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number","description":"The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.","units":{"shares":[{"end":"2010-12-31","val":9079694,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":13560645,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":17731809,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":31748346,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":35062748,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":40235301,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":40235301,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":44314195,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":39725053,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":39919885,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":39981705,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":30045828,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":17119081,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":11171890,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":8726933,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":5609047,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price","description":"The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.","units":{"USD/shares":[{"end":"2010-12-31","val":31,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":33.1,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":34.41,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":33.4,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":35.15,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":35.78,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":35.78,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":34.2,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":32.26,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":29.8,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":28.86,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":28.71,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":26.62,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":17.65,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":15.59,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":14.22,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)","description":"The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.","units":{"pure":[{"start":"2009-12-31","end":"2010-12-31","val":5.9,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"}],"years":[{"start":"2010-12-31","end":"2011-12-31","val":5.7,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (Deprecated 2011-01-31)","description":"The decrease in the number of reserved shares that could potentially be issued attributable to the exercise or conversion during the reporting period of previously issued stock options under the option plan.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":-4397202,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-1571874,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-6081650,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value","description":"Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":128000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":24000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":24000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":129000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":129000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":129000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":101000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":101000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":34000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.","units":{"USD":[{"end":"2008-12-31","val":24.25,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":20.15,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2009-12-31","val":20.15,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":27.54,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":27.54,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":21.88,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period","description":"For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":-315500,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":-514426,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":514426,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-212500,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":212500,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":212500,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":149625,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":149625,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":149625,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":244813,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":244813,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":423601,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":526792,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1880534,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1880534,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":2661894,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":8992606,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3721618,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4528736,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":8774615,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":4347579,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":3836900,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":12333,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price of options that were either forfeited or expired.","units":{"USD/shares":[{"start":"2008-01-01","end":"2008-12-31","val":35.21,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":30.29,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":30.29,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":30.29,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":30.29,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":30.29,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":37.61,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":37.61,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":37.61,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":45.23,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":45.23,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":41.83,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":37.51,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":30.15,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":30.15,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":31.8,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":34.24,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":39.26,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":20.55,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":34.62,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":51.15,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":46.56,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":34.27,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures","description":"Net number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":2899000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":7302000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":7302000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":8303000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":8303000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":8303000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":4230500,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4230500,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":4230500,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":5050500,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":5050500,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":5479930,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":3276000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":5450000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":5450000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross","description":"Gross number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2016-01-01","end":"2016-12-31","val":7167000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":3861000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":3315000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":6425500,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":3803000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":598000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.","units":{"USD":[{"end":"2008-12-31","val":45.55,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008Q4I"},{"end":"2009-12-31","val":12.94,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009Q4I"},{"end":"2009-12-31","val":12.94,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":36.15,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2010-12-31","val":36.15,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2011-12-31","val":55.43,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value","description":"The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.","units":{"USD/shares":[{"start":"2008-01-01","end":"2008-12-31","val":17.45,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":7.14,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":7.14,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":15.33,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":15.33,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":15.33,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":20.58,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":20.58,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":15.6,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value","description":"Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.","units":{"USD":[{"end":"2010-12-31","val":803000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2011-12-31","val":152000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":102000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":239000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":38000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":66000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":38000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":60000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":259000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":411000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":235000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":236000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":134000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":173000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number","description":"Number of options outstanding, including both vested and non-vested options.","units":{"shares":[{"end":"2007-12-31","val":21519596,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-12-31","val":19705894,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":19705894,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-12-31","val":24921594,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":24921594,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":24921594,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":26930444,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":26930444,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":26930444,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":26930444,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":27967145,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":27967145,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":27967145,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":31472559,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":31472559,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":45130661,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":45130661,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":45929739,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":45929739,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":45929739,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":49303879,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":49303879,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":49303879,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":53794235,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":53794235,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":48014688,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":48014688,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":46806364,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":46806364,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":48312053,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":48312053,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":37100098,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":37100098,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":21822562,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":21822562,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":11614052,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":11614052,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":8749933,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":8749933,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":5609047,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":5609047,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4764968,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price","description":"Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.","units":{"USD/shares":[{"end":"2007-12-31","val":29.09,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-12-31","val":32.49,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":32.49,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-12-31","val":27.59,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":27.59,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":27.59,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-12-31","val":30.22,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":30.22,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":30.22,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":30.22,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":34.9,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":34.9,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":34.9,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":37.4,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":37.4,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":35.39,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":35.39,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":35.65,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":35.65,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":35.65,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":34.1,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":34.1,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":34.1,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":30.25,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":30.25,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":28.63,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":28.63,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":27.4,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":27.4,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":26.16,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":26.16,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":25.58,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":25.58,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":23.78,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":23.78,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":17.75,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":17.75,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":15.63,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":15.63,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":14.22,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":14.22,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":14.53,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2011-01-31)","description":"The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.","units":{"pure":[{"start":"2009-12-31","end":"2010-12-31","val":7.4,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price","description":"Weighted average price at which option holders acquired shares when converting their stock options into shares.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":27.54,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":21.88,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":21.88,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":16.68,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":16.68,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":18.77,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":21.23,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":15.61,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":15.61,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":12.12,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":7.64,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":10.05,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":4.72,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":9.09,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":19.48,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":21.07,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":24.18,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":18.13,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":12.51,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price","description":"Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":36.15,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":55.43,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":55.43,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":46.32,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":46.32,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":35,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":31.01,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":18.96,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":18.96,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":4.35,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":15.52,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":18.74,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":11.88,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":12.04,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":28.14,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage","description":"Percentage of vesting of award under share-based payment arrangement.","units":{"pure":[{"start":"2020-01-01","end":"2020-12-31","val":0.33,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1":{"label":"Share-based Payment Arrangement, Expensed and Capitalized, Amount","description":"Amount of cost expensed and capitalized for award under share-based payment arrangement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":128000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":95000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":95000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":89000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":71000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":74000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":74000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":74000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":63000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":99000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":98000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":95000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":109000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":109000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":109000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value","description":"Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.","units":{"USD":[{"end":"2011-12-31","val":65000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":65000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":210000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":38000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":14000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":62000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":26000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":51000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":162000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":278000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":227000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":235000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":134000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)","description":"The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.","units":{"years":[{"end":"2011-12-31","val":6.9,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011Q4I"}]}},"SharesIssued":{"label":"Shares, Issued","description":"Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.","units":{"shares":[{"end":"2009-12-31","val":29000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q4I"}]}},"SharesIssuedPricePerShare":{"label":"Shares Issued, Price Per Share","description":"Per share or per unit amount of equity securities issued.","units":{"USD/shares":[{"end":"2015-09-30","val":10.35,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"}]}},"SharesPaidForTaxWithholdingForShareBasedCompensation":{"label":"Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation","description":"Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.","units":{"shares":[{"start":"2014-01-01","end":"2014-12-31","val":474480,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":349122,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":349122,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":906120,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":906120,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":906120,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1041937,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1041937,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1041937,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":195322,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":195322,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":195322,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":670508,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":670508,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":670508,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":1193183,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1193183,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1193183,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":1358101,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1358101,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1358101,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":1511072,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1511072,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1511072,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1633519,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1633519,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1633519,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1505675,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1505675,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":560613,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowOfProvedOilAndGasReservesPeriodIncreaseDecrease":{"label":"Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Period Increase (Decrease)","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow relating to proved oil and gas reserves.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":9417000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-06-01","end":"2013-12-31","val":9417000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-06-01","end":"2013-12-31","val":9417000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2996000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-2996000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2996000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":-2996000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-5029000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-5029000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-5029000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":-5029000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-1629000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-1629000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount":{"label":"Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount","description":"Amount of accretion of discount for the standardized measure of discounted future net cash flow related to proved oil and gas reserves.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":1195000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":797000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":797000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":139000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":139000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowsRelatingToProvedOilAndGasReserves":{"label":"Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves","description":"Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-12-31","val":9417000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":9417000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":9417000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":9417000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2013-12-31","val":9417000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":6421000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":6421000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":6421000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":6421000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":6421000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1392000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1392000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":1392000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":1392000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":-237000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":-237000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"}]}},"StockGrantedDuringPeriodValueSharebasedCompensation":{"label":"Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture","description":"Value, after forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":67000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":67000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":67000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":67000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":67000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":67000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.","units":{"USD":[{"end":"2008-12-31","val":5773000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":5773000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":5773000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":5773000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":6650000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":7269000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":8209000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":9119000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":9119000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":9119000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":9119000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":9119000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":9992000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":10532000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":11596000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":12504000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":12504000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":12504000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":12504000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":12504000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":13801000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":14508000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":15357000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":15642000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":15642000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":15642000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":15642000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":15642000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":16135000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":16578000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":17139000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":17543000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":17543000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":17543000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":17543000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":17543000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":17940000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":19878000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":20405000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":20934000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":20934000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":20934000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":20934000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":20934000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":21150000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":21332000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":21591000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":18287000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":15793000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":13805000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":10946000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":7828000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3692000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":3692000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4003000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4732000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6051000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":6051000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":6051000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":6051000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":6051000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":6318000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":6673000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":6973000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7977000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":7977000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":7977000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":7977000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":7977000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":8656000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":9474000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":9977000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":9798000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":9798000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":9798000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":9798000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":9798000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":9783000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":9709000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":9444000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":9298000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":9298000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":9298000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":9298000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":9298000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":8855000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":8954000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":9236000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":10174000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":10174000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":10174000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":10174000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":10174000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":10920000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":12011000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":13353000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":13980000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":13980000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":13980000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":13980000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":13980000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":14866000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":14889000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":14954000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":15555000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":15555000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":15555000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":15555000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":15555000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":16057000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":16202000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":16459000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":16693000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":16693000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":16693000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":16693000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":16693000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":16973000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":17404000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":17548000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":17581000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":17581000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":17581000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":17581000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":17581000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":17688000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":18208000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":18685000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":18899000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest":{"label":"Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest","description":"Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.","units":{"USD":[{"end":"2006-12-31","val":2658000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2006Q4I"},{"end":"2007-12-31","val":19473000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2007-12-31","val":19473000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2007Q4I"},{"end":"2008-12-31","val":7101000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":7101000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":7101000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2008-12-31","val":7101000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2008-12-31","val":7101000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008Q4I"},{"end":"2009-06-30","val":8831000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":9934000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2009-12-31","val":10757000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2009Q4I"},{"end":"2010-03-31","val":11833000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":12293000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":13721000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2010-12-31","val":14560000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":16091000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":17102000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":18051000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2011-12-31","val":18553000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":19299000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":19890000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":20743000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":21311000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2012Q4I"},{"end":"2013-03-31","val":21849000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":23867000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":24554000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2013-12-31","val":25231000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-03-31","val":25483000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":25667000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":25966000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":22474000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-03-31","val":20031000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":18055000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":15205000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2015-12-31","val":12044000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-03-31","val":7970000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":7970000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":8319000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":9066000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2016-12-31","val":9257000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":9587000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":9993000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2017-06-30","val":9993000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10230000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2017-09-30","val":10230000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2017-12-31","val":11296000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017Q4I"},{"end":"2018-03-31","val":11926000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2018-03-31","val":11926000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-03-31","val":11926000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q1I"},{"end":"2018-06-30","val":12842000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2018-06-30","val":12842000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2018-06-30","val":12842000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-06-30","val":12842000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q2I"},{"end":"2018-09-30","val":13454000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2018-09-30","val":13454000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3I"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2018-12-31","val":17892000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018Q4I"},{"end":"2019-03-31","val":17841000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2019-03-31","val":17841000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-03-31","val":17841000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-03-31","val":17841000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":17817000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2019-06-30","val":17817000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-06-30","val":17817000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-06-30","val":17817000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":17542000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2019-09-30","val":17542000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2019-12-31","val":17448000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2019Q4I"},{"end":"2020-03-31","val":16963000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2020-03-31","val":16963000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2020-03-31","val":16963000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-03-31","val":16963000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q1I"},{"end":"2020-06-30","val":17155000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2020-06-30","val":17155000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2020-06-30","val":17155000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-06-30","val":17155000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q2I"},{"end":"2020-09-30","val":17562000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2020-09-30","val":17562000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3I"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2020-12-31","val":18668000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2020Q4I"},{"end":"2021-03-31","val":19573000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2021-03-31","val":19573000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2021-03-31","val":19573000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-03-31","val":19573000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":20935000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2021-06-30","val":20935000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2021-06-30","val":20935000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-06-30","val":20935000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q2I"},{"end":"2021-09-30","val":22531000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2021-09-30","val":22531000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3I"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2021-12-31","val":23019000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2021Q4I"},{"end":"2022-03-31","val":24042000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2022-03-31","val":24042000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2022-03-31","val":24042000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-03-31","val":24042000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q1I"},{"end":"2022-06-30","val":24047000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2022-06-30","val":24047000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2022-06-30","val":24047000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-06-30","val":24047000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q2I"},{"end":"2022-09-30","val":24181000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2022-09-30","val":24181000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3I"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2022-12-31","val":24871000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2022Q4I"},{"end":"2023-03-31","val":25648000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2023-03-31","val":25648000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2023-03-31","val":25648000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-03-31","val":25648000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q1I"},{"end":"2023-06-30","val":26027000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2023-06-30","val":26027000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2023-06-30","val":26027000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-06-30","val":26027000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q2I"},{"end":"2023-09-30","val":26677000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2023-09-30","val":26677000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3I"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2023-12-31","val":27310000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-03-31","val":28105000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2024-03-31","val":28105000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2024-03-31","val":28105000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-03-31","val":28105000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":28686000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2024-06-30","val":28686000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2024-06-30","val":28686000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-06-30","val":28686000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q2I"},{"end":"2024-09-30","val":28866000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2024-09-30","val":28866000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3I"},{"end":"2024-12-31","val":28778000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":28778000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":28778000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":28778000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":28778000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":29214000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2025-03-31","val":29214000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":29996000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2025-06-30","val":29996000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q2I"},{"end":"2025-09-30","val":30397000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":30766000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"StockholdersEquityNoteStockSplitConversionRatio":{"label":"Stockholders' Equity Note, Stock Split, Conversion Ratio (Deprecated 2013-01-31)","description":"This item represents the conversion ratio used in the calculation of a stock split.","units":{"pure":[{"start":"2011-01-01","end":"2011-06-30","val":2,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":2,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"}]}},"StockIssuedDuringPeriodSharesNewIssues":{"label":"Stock Issued During Period, Shares, New Issues","description":"Number of new stock issued during the period.","units":{"shares":[{"start":"2015-01-01","end":"2015-09-30","val":98000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":206000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015"},{"start":"2015-01-01","end":"2016-01-05","val":210000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-01-05","val":210000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-01-05","val":4000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-01-05","val":210000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"start":"2016-04-01","end":"2016-06-30","val":17000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":28000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":33500000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"StockIssuedDuringPeriodSharesShareBasedCompensation":{"label":"Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture","description":"Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).","units":{"shares":[{"start":"2019-01-01","end":"2019-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-03-31","val":1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":2000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":7000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":11000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":11000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":11000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":11000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":0,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3"},{"start":"2022-01-01","end":"2022-03-31","val":9000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":9000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":9000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":9000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":9000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"}]}},"StockIssuedDuringPeriodSharesStockOptionsExercised":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period","description":"Number of share options (or share units) exercised during the current period.","units":{"shares":[{"start":"2008-12-31","end":"2009-12-31","val":1571874,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":6081650,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":6081650,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2010-12-31","end":"2011-12-31","val":3044174,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3044174,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":3044174,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":1300273,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":1300273,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":976220,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1950130,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":195326,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":195326,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":14750,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":647941,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":801706,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":391075,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":6240340,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":11527957,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":6371610,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":2851786,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":3140886,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":844079,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"StockIssuedDuringPeriodValueAcquisitions":{"label":"Stock Issued During Period, Value, Acquisitions","description":"Value of stock issued pursuant to acquisitions during the period.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":9014000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2013-01-01","end":"2013-06-30","val":2831000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":2831000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":2831000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2831000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2831000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2831000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"}]}},"StockIssuedDuringPeriodValueConversionOfConvertibleSecurities":{"label":"Stock Issued During Period, Value, Conversion of Convertible Securities","description":"The gross value of stock issued during the period upon the conversion of convertible securities.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":6000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-12-31","end":"2010-12-31","val":1000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":1000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"}]}},"StockIssuedDuringPeriodValueNewIssues":{"label":"Stock Issued During Period, Value, New Issues","description":"Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.","units":{"USD":[{"start":"2007-01-01","end":"2007-12-31","val":2816000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2009-01-01","end":"2009-03-31","val":740000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":740000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-09-30","val":740000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-12-31","end":"2009-12-31","val":740000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":740000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":740000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2015-01-01","end":"2015-09-30","val":999000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1936000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2015-09-01","end":"2015-12-31","val":1000000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-09-01","end":"2015-12-31","val":1000000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4"},{"start":"2016-01-01","end":"2016-03-31","val":32000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":32000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":798000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1294000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":2366000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":2366000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":2366000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"}]}},"StockIssuedDuringPeriodValueShareBasedCompensation":{"label":"Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture","description":"Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).","units":{"USD":[{"start":"2009-01-01","end":"2009-03-31","val":33000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"},{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":110000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":110000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-06-30","val":42000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":48000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":48000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":48000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":12000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":13000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-09-30","val":14000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-09-30","val":5000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":5000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-09-30","val":13000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-09-30","val":3000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":5000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":5000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-09-30","val":5000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":5000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":6000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":6000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":8000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":8000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":2000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":8000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":8000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":8000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":1000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":1000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":1000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-01-01","end":"2020-09-30","val":2000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":2000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":1000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":58000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":58000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":58000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":106000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":106000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":184000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":184000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":78000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":78000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":190000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":190000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":6000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":226000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":226000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":226000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":108000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":108000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":113000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":113000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":5000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":113000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":113000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-01-01","end":"2022-12-31","val":132000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":132000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":132000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":53000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":53000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":56000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":56000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":3000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":3000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":63000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":63000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":7000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":7000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":69000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":69000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":48000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":22000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":5000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":53000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":25000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":31000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":20000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":54000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":26000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":56000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":28000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":2000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":5000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":3000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":13000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"TaxAdjustmentsSettlementsAndUnusualProvisions":{"label":"Tax Adjustments, Settlements, and Unusual Provisions","description":"Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1374000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":1374000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-13000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":-13000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":-13000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-393000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":-393000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":-393000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":-504000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":-12000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":-37000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":-37000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":-37000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":-193000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-193000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":-193000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-1000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":-6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-6000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"TaxCreditCarryforwardAmount":{"label":"Tax Credit Carryforward, Amount","description":"The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.","units":{"USD":[{"end":"2016-12-31","val":72000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"}]}},"TemporaryEquityCarryingAmountIncludingPortionAttributableToNoncontrollingInterests":{"label":"Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests","description":"Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2013-06-03","val":259000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-06-03","val":259000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-06-03","val":259000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q2I"},{"end":"2013-12-31","val":716000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":716000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":716000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":745000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":749000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":751000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":755000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":757000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":761000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":764000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":767000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":767000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":771000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":774000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"TemporaryEquityRedemptionValue":{"label":"Temporary Equity, Redemption Value (Deprecated 2014-01-31)","description":"The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2013-06-03","val":259000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-06-30","val":782000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":720000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":716000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":716000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2014-03-31","val":743000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"}]}},"TimeDepositsAtCarryingValue":{"label":"Time Deposits, at Carrying Value","description":"Any certificate of deposit or savings account held by a bank or other financial institution for a short-term specified period of time. Because of their short-term, time deposits are considered highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.","units":{"USD":[{"end":"2010-12-31","val":19000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2012-03-31","val":17000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"}]}},"TreasuryStockAcquiredAverageCostPerShare":{"label":"Treasury Stock Acquired, Average Cost Per Share","description":"Total cost of shares repurchased divided by the total number of shares repurchased.","units":{"USD/shares":[{"start":"2008-01-01","end":"2008-12-31","val":79.15,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-01-01","end":"2008-12-31","val":79.15,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008"},{"start":"2021-01-01","end":"2021-12-31","val":38.32,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":38.32,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2021-10-01","end":"2021-12-31","val":38.32,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4"},{"start":"2022-01-01","end":"2022-03-31","val":44.02,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":40.32,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":37.66,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2"},{"start":"2021-11-01","end":"2022-09-30","val":38.35,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":38.36,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-12-31","val":38.36,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2021-07-01","end":"2023-06-30","val":38.35,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2021-07-01","end":"2023-09-30","val":38.35,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-12-31","val":38.36,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2021-11-17","end":"2024-07-31","val":38.64,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-07-31","val":50.48,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q2I"},{"start":"2025-01-01","end":"2025-03-31","val":39.1,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":36.41,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":36.41,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"TreasuryStockShares":{"label":"Treasury Stock, Shares","description":"Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.","units":{"shares":[{"end":"2008-12-31","val":121000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-12-31","val":122000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":122000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-12-31","val":122000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":122000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-12-31","val":123000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":123000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-12-31","val":124000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":124000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":127000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":127000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":128000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":128000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":128000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":129000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-12-31","val":130000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":129000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-12-31","val":130000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":130000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-12-31","val":131000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":131000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-12-31","val":132000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":132000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":146000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":146000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":183000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"}]}},"TreasuryStockValue":{"label":"Treasury Stock, Value","description":"The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.","units":{"USD":[{"end":"2008-12-31","val":-3402000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"end":"2008-12-31","val":3402000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"end":"2008-12-31","val":3402000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"end":"2008-12-31","val":3402000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2008Q4I"},{"end":"2009-03-31","val":-3409000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1I"},{"end":"2009-06-30","val":3409000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2009Q2I"},{"end":"2009-09-30","val":3413000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2009Q3I"},{"end":"2009-12-31","val":3413000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"end":"2009-12-31","val":3413000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"end":"2009-12-31","val":3413000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"end":"2009-12-31","val":3413000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"end":"2009-12-31","val":3413000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009Q4I"},{"end":"2010-03-31","val":3432000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":3432000000,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":3433000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2010Q3I"},{"end":"2010-12-31","val":3441000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"end":"2010-12-31","val":3441000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"end":"2010-12-31","val":3441000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"end":"2010-12-31","val":3441000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3441000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010Q4I"},{"end":"2011-03-31","val":3553000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2011Q1I"},{"end":"2011-06-30","val":3553000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3554000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3553000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27"},{"end":"2011-12-31","val":3553000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"end":"2011-12-31","val":3553000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"end":"2011-12-31","val":3553000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"end":"2011-12-31","val":3553000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3575000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3575000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3576000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3576000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"end":"2012-12-31","val":3576000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"end":"2012-12-31","val":3576000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"end":"2012-12-31","val":3576000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3576000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3580000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3681000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3681000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3681000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"end":"2013-12-31","val":3681000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"end":"2013-12-31","val":3681000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"end":"2013-12-31","val":3681000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":3681000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3683000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3686000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3686000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3695000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3701000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3702000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3702000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"end":"2015-12-31","val":3702000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015Q4I"},{"end":"2016-03-31","val":3706000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":3706000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3710000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3710000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3708000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":3708000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":3708000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"end":"2016-12-31","val":3708000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"end":"2016-12-31","val":3708000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4I"},{"end":"2017-03-31","val":3717000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3720000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3722000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3723000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":3723000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"end":"2017-12-31","val":3723000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"end":"2017-12-31","val":3723000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"end":"2017-12-31","val":3723000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4I"},{"end":"2018-03-31","val":3726000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"},{"end":"2018-06-30","val":3726000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-09-30","val":3726000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2018-12-31","val":3727000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":3727000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"end":"2018-12-31","val":3727000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"end":"2018-12-31","val":3727000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"end":"2018-12-31","val":3727000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4I"},{"end":"2019-03-31","val":3734000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2019Q1I"},{"end":"2019-06-30","val":3734000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2019Q2I"},{"end":"2019-09-30","val":3735000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":3734000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":3734000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"end":"2019-12-31","val":3734000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":3734000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"end":"2019-12-31","val":3734000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019Q4I"},{"end":"2020-03-31","val":3739000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2020Q1I"},{"end":"2020-06-30","val":3739000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":3739000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2020-12-31","val":3758000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":3758000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"end":"2020-12-31","val":3758000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"end":"2020-12-31","val":3758000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"end":"2020-12-31","val":3758000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-03-31","val":3777000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2021Q1I"},{"end":"2021-06-30","val":3777000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2021Q2I"},{"end":"2021-09-30","val":3777000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3I"},{"end":"2021-12-31","val":4292000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":4292000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"end":"2021-12-31","val":4292000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2021-12-31","val":4292000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2021-12-31","val":4292000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-03-31","val":4895000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2022Q1I"},{"end":"2022-06-30","val":5539000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2I"},{"end":"2022-09-30","val":5701000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2022-12-31","val":5701000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":5701000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"end":"2022-12-31","val":5701000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"end":"2022-12-31","val":5701000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"end":"2022-12-31","val":5701000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-03-31","val":5769000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2023Q1I"},{"end":"2023-06-30","val":5769000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":5772000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2023-12-31","val":5773000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":5773000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"end":"2023-12-31","val":5773000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"end":"2023-12-31","val":5773000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":5773000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-03-31","val":5817000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"},{"end":"2024-06-30","val":5835000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":5894000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":5894000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":5894000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":5894000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":5894000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":5894000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":5971000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":6024000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":6024000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":6024000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"TreasuryStockValueAcquiredCostMethod":{"label":"Treasury Stock, Value, Acquired, Cost Method","description":"Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":500000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-01-01","end":"2008-12-31","val":500000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2008"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":488000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1185000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1185000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":644000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":644000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1347000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1347000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":162000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":162000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1347000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2024-01-01","end":"2024-09-30","val":59000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":59000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":59000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":59000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":59000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":59000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":55000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":107000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":52000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":107000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":107000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnamortizedDebtIssuanceExpense":{"label":"Unamortized Debt Issuance Expense","description":"The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.","units":{"USD":[{"end":"2014-12-31","val":121000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"end":"2014-12-31","val":121000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"end":"2014-12-31","val":121000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"end":"2014-12-31","val":143000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":143000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014Q4I"},{"end":"2015-03-31","val":122000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1I"},{"end":"2015-06-30","val":116000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2I"},{"end":"2015-09-30","val":111000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3I"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":129000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-03-31","val":130000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"end":"2016-03-31","val":130000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1I"},{"end":"2016-06-30","val":120000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":111000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3I"}]}},"UndistributedEarningsAllocatedToParticipatingSecurities":{"label":"Undistributed Earnings Allocated to Participating Securities (Deprecated 2014-01-31)","description":"Earnings allocated (not distributed) to participating securities under the two-class method to the extent that participating securities may share in earnings as if all of the earnings for the period had been distributed.","units":{"USD":[{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-1000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2014Q1"}]}},"UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic":{"label":"Undistributed Earnings (Loss) Allocated to Participating Securities, Basic","description":"Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-1000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":-2000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":-2000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-4000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":-4000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":-2000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-3000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":-3000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-3000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-3000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":3000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-3000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":3000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":3000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":3000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":3000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":3000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":3000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":4000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":4000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":3000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":3000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":5000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":5000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":4000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":4000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":4000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":3000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":3000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":3000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":3000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":3000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":3000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":3000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":3000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":3000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":3000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":3000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":3000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":3000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":3000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":3000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":3000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":3000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":4000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":-4000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":6000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":4000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":7000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":7000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":-5000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":5000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":5000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":4000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":4000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":6000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":6000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":5000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":5000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":5000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":5000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":5000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":5000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":5000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":5000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":5000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":5000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":5000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":6000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":6000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":6000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":6000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":6000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":6000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":6000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":6000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":7000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":7000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":7000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2013-12-31","val":110000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2013Q4I"},{"end":"2014-12-31","val":104000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2014-12-31","val":104000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2014Q4I"},{"end":"2015-12-31","val":110000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":110000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2015-12-31","val":110000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":101000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":101000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":101000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2016-12-31","val":101000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":390000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":390000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":390000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2017-12-31","val":390000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017Q4I"},{"end":"2018-12-31","val":404000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":404000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":404000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2018-12-31","val":494000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":376000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":376000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":491000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2019-12-31","val":491000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":295000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":474000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":474000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2020-12-31","val":474000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":808000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":808000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":808000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2021-12-31","val":808000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2021Q4I"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2022-12-31","val":810000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2022Q4I"},{"end":"2023-12-31","val":720000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":720000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":720000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":161000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":161000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":169000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions","description":"Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2017-01-01","end":"2017-12-31","val":86000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":86000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":86000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":75000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":75000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":75000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":60000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":82000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":82000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":30000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":30000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":30000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":12000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":13000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":13000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":13000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":54000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":54000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":20000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities","description":"Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":17000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":17000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":17000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2017-01-01","end":"2017-12-31","val":9000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":9000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":9000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":25000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":37000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":37000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":79000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":51000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":51000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-07-01","end":"2021-09-30","val":252000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":37000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":37000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":37000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":37000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":37000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":37000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":132000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":132000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":132000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":492000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":492000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":4000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense":{"label":"Unrecognized Tax Benefits, Income Tax Penalties Expense","description":"Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":14000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":14000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":28000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":28000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":28000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":6000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":14000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":14000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":11000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":11000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":10000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":60000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":60000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":71000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":71000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":71000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":25000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":25000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":25000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":10000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":10000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":10000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions","description":"Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":18000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":18000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":302000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":302000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":302000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2017-01-01","end":"2017-12-31","val":100000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":100000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":100000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":86000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":73000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":73000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":48000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":56000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":56000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":330000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":26000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":26000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":26000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":27000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":13000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":13000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":24000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued":{"label":"Unrecognized Tax Benefits, Interest on Income Taxes Accrued","description":"Amount of interest expense accrued for an underpayment of income taxes.","units":{"USD":[{"end":"2013-12-31","val":21000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":21000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":15000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":15000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2014-12-31","val":15000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014Q4I"},{"end":"2015-12-31","val":16000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":16000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"end":"2015-12-31","val":16000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2015-12-31","val":16000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015Q4I"},{"end":"2016-12-31","val":19000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"end":"2016-12-31","val":19000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2016-12-31","val":19000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016Q4I"},{"end":"2017-12-31","val":22000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"end":"2017-12-31","val":22000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2017-12-31","val":22000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017Q4I"},{"end":"2018-12-31","val":186000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"end":"2018-12-31","val":186000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2018-12-31","val":186000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018Q4I"},{"end":"2019-12-31","val":231000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"end":"2019-12-31","val":231000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2019-12-31","val":339000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019Q4I"},{"end":"2020-12-31","val":163000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"end":"2020-12-31","val":307000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2020-12-31","val":307000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":620000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":620000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-12-31","val":620000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q4I"},{"end":"2022-12-31","val":551000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":551000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-12-31","val":551000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022Q4I"},{"end":"2023-12-31","val":536000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":536000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2023-12-31","val":536000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023Q4I"},{"end":"2024-12-31","val":264000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":264000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":275000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations":{"label":"Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations","description":"Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":28000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":28000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":39000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":39000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":39000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2017-01-01","end":"2017-12-31","val":5000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":5000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":5000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":36000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":36000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate":{"label":"Unrecognized Tax Benefits that Would Impact Effective Tax Rate","description":"The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.","units":{"USD":[{"end":"2010-12-31","val":200000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q4I"},{"end":"2012-12-31","val":119000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":97000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":97000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":107000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":107000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":95000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":344000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":296000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":282000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":254000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":694000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":689000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":597000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":153000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":134000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":142000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":119000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":73000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":73000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":45000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":35000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":44000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":270000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":119000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":200000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":100000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":100000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":100000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, Year One","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":976000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1379000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2128000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2185000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":2185000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1800000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":2400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2100000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1600000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1800000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1600000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1600000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":2200000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1800000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":2800000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":152000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":686000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":111000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":93000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":93000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":263000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":92000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":50000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":274000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":334000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":200000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":300000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":100000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":200000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":100000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":499000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1313000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1004000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":912000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":912000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":718000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":537000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":234000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":731000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":1200000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":1500000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1500000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":1300000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":1100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":900000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":232000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":863000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":707000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":184000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":184000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":314000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":91000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":147000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":300000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":539000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":500000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":1000000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":300000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":400000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":300000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount":{"label":"Unrecorded Unconditional Purchase Obligation","description":"Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).","units":{"USD":[{"end":"2012-12-31","val":2200000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":4700000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4300000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3900000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":3900000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":3400000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":3400000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":2900000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":3600000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":4200000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":4300000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":4800000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":4200000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":3700000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":4200000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears":{"label":"Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five","description":"Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":207000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012Q4I"},{"end":"2013-12-31","val":327000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":204000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":482000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":482000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2015Q4I"},{"end":"2016-12-31","val":342000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016Q4I"},{"end":"2017-12-31","val":270000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017Q4I"},{"end":"2018-12-31","val":301000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018Q4I"},{"end":"2019-12-31","val":387000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4I"},{"end":"2020-12-31","val":253000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020Q4I"},{"end":"2021-12-31","val":300000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":300000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":200000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-12-31","val":100000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"ValuationAllowanceDeferredTaxAssetChangeInAmount":{"label":"Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount","description":"Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.","units":{"USD":[{"start":"2008-01-01","end":"2008-12-31","val":323000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":167000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":50000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":44000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-53000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-458000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":458000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":458000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-763000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":763000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":-305000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2000000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":2000000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":1200000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1749000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1749000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1200000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1400000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1400000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":1400000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1500000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1500000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-01-01","end":"2016-09-30","val":1600000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1600000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-01-01","end":"2016-12-31","val":1900000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24"},{"start":"2016-01-01","end":"2016-12-31","val":1200000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-1500000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-68000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-69000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":156000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":645000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":102000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":91000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":900000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":100000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"WeightedAverageNumberOfDilutedSharesOutstanding":{"label":"Weighted Average Number of Shares Outstanding, Diluted","description":"The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.","units":{"shares":[{"start":"2007-01-01","end":"2007-12-31","val":397000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":449000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":449000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":450000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":449000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":447000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":382000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":763000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":401000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":401000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":426000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":426,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":471000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":471,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":428000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":428000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":472000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":472000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":938000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":938000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":469000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":473000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":947000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":474,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":947000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":473,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":947000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":474000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":947000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":474000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":947000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":949000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":949000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":949000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":955000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":955000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":956000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":956000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":956000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":956000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":955000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":955000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":955000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":955000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":955000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":955000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":955000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":955000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":955000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":954000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":954000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":953000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":953000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":953000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":953000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":953000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":953000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":954000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":954000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":954000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":953000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":953000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":968000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":968000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":984000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":984000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":993000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":993000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1043000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1043000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1006000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1006000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1006000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1006000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1044000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1044000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1045000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1045000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1045000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1045000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1045000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1045000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1046000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1046000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-01-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1050000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":1050000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":1071000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":1071000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1260000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-06-30","val":1260000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1289000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1289000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":1351000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":1351000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":1351000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1318000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1318000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":1410000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":1454000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":1454000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":1454000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":1454000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1453000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1453000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1453000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":1454000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":1454000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":1454000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":1454000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1454000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1454000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1454000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1455000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1455000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":1458000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1458000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":1458000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":1458000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1458000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1458000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1458000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1458000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1458000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":1457000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":1457000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":1457000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1457000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":1457000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1451000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1451000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":1457000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":1452000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":1452000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":1458000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":1458000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1461000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":1461000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":1461000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1461000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1461000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1477000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1477000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1480000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1480000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1483000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1483000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":1481000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1481000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1484000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1484000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":1482000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1482000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1482000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1469000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1469000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1463000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1463000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1457000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1457000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1455000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1455000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":1439000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":1439000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1451000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1451000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1451000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1443000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1443000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1443000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1443000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1442000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1442000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1443000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1443000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1443000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1443000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1443000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1443000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1443000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1444000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1444000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1445000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1445000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1445000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1445000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1445000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1445000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1444000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1444000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":1445000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1445000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1444000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1444000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1443000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1443000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1443000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":1443000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"WeightedAverageNumberOfShareOutstandingBasicAndDiluted":{"label":"Weighted Average Number of Shares Outstanding, Basic and Diluted","description":"Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).","units":{"shares":[{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-16-000071","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-10"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-16-000103","fy":2016,"fp":"Q1","form":"8-K","filed":"2016-11-09","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1260000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-12-31","val":1318000000,"accn":"0000831259-17-000012","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-24","frame":"CY2016"}]}},"WeightedAverageNumberOfSharesOutstandingBasic":{"label":"Weighted Average Number of Shares Outstanding, Basic","description":"Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.","units":{"shares":[{"start":"2007-01-01","end":"2007-12-31","val":341000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2007"},{"start":"2008-01-01","end":"2008-03-31","val":383000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2008-01-01","end":"2008-06-30","val":383000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2008-04-01","end":"2008-06-30","val":384000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07","frame":"CY2008Q2"},{"start":"2008-01-01","end":"2008-09-30","val":383000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2008-07-01","end":"2008-09-30","val":382000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06","frame":"CY2008Q3"},{"start":"2008-01-01","end":"2008-12-31","val":382000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2008-01-01","end":"2008-12-31","val":763000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2009-01-01","end":"2009-03-31","val":400000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11"},{"start":"2009-01-01","end":"2009-03-31","val":400000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2009Q1"},{"start":"2009-01-01","end":"2009-06-30","val":406000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-01-01","end":"2009-06-30","val":406,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2009-04-01","end":"2009-06-30","val":412000000,"accn":"0000831259-09-000076","fy":2009,"fp":"Q2","form":"10-Q","filed":"2009-08-07"},{"start":"2009-04-01","end":"2009-06-30","val":412,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2009Q2"},{"start":"2009-01-01","end":"2009-09-30","val":409000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-01-01","end":"2009-09-30","val":409000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2009-07-01","end":"2009-09-30","val":416000000,"accn":"0000831259-09-000098","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-11-06"},{"start":"2009-07-01","end":"2009-09-30","val":416000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05","frame":"CY2009Q3"},{"start":"2008-12-31","end":"2009-12-31","val":829000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2008-12-31","end":"2009-12-31","val":829000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2009-01-01","end":"2009-12-31","val":414000000,"accn":"0000831259-10-000010","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26"},{"start":"2010-01-01","end":"2010-03-31","val":431000000,"accn":"0000831259-10-000029","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07"},{"start":"2010-01-01","end":"2010-03-31","val":861000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":444,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-01-01","end":"2010-06-30","val":888000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":458,"accn":"0000831259-10-000048","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06"},{"start":"2010-04-01","end":"2010-06-30","val":915000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":453000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-01-01","end":"2010-09-30","val":906000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":471000000,"accn":"0000831259-10-000070","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-11-05"},{"start":"2010-07-01","end":"2010-09-30","val":941000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":915000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2009-12-31","end":"2010-12-31","val":915000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":915000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-03-31","val":946000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-03-31","val":946000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":947000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-06-30","val":947000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":947000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":947000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":947000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":947000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2011-07-01","end":"2011-09-30","val":948000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":948000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":947000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":947000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2011-01-01","end":"2011-12-31","val":947000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-03-31","val":949000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07"},{"start":"2012-01-01","end":"2012-03-31","val":949000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":949000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-01-01","end":"2012-06-30","val":949000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2012-04-01","end":"2012-06-30","val":949000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":949000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":949000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-01-01","end":"2012-09-30","val":949000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":949000000,"accn":"0000831259-12-000040","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02"},{"start":"2012-07-01","end":"2012-09-30","val":949000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":949000000,"accn":"0000831259-13-000014","fy":2012,"fp":"FY","form":"10-K","filed":"2013-02-22"},{"start":"2012-01-01","end":"2012-12-31","val":949000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2012-01-01","end":"2012-12-31","val":949000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":950000000,"accn":"0000831259-13-000039","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-06"},{"start":"2013-01-01","end":"2013-03-31","val":950000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":965000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-01-01","end":"2013-06-30","val":965000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2013-04-01","end":"2013-06-30","val":980000000,"accn":"0000831259-13-000057","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-09"},{"start":"2013-04-01","end":"2013-06-30","val":980000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":989000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":989000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":1038000000,"accn":"0000831259-13-000071","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1038000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1002000000,"accn":"0000831259-14-000006","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1002000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1002000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1002000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1038000000,"accn":"0000831259-14-000022","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-09"},{"start":"2014-01-01","end":"2014-03-31","val":1038000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1039000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-01-01","end":"2014-06-30","val":1039000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2014-04-01","end":"2014-06-30","val":1039000000,"accn":"0000831259-14-000042","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-11"},{"start":"2014-04-01","end":"2014-06-30","val":1039000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1039000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-09-30","val":1039000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2014-07-01","end":"2014-09-30","val":1039000000,"accn":"0000831259-14-000051","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":1039000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-15-000016","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1039000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1040000000,"accn":"0000831259-15-000027","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-08","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10"},{"start":"2015-04-01","end":"2015-06-30","val":1040000000,"accn":"0000831259-15-000043","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-10","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1050000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":1050000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":1071000000,"accn":"0000831259-15-000055","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":1071000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-16-000104","fy":2015,"fp":"FY","form":"8-K","filed":"2016-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1082000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":1251000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":1260000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2016-04-01","end":"2016-06-30","val":1269000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":1289000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-01-01","end":"2016-09-30","val":1289000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":1346000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":1346000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2016-07-01","end":"2016-09-30","val":1346000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q3"},{"start":"2016-01-01","end":"2016-12-31","val":1318000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2016-01-01","end":"2016-12-31","val":1318000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2016"},{"start":"2016-10-01","end":"2016-12-31","val":1403000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20","frame":"CY2016Q4"},{"start":"2017-01-01","end":"2017-03-31","val":1446000000,"accn":"0000831259-17-000018","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-03-31","val":1446000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-03-31","val":1446000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2017-01-01","end":"2017-03-31","val":1446000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-01-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-17-000026","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-04"},{"start":"2017-04-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-04-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2017-04-01","end":"2017-06-30","val":1447000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1447000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-01-01","end":"2017-09-30","val":1447000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":1448000000,"accn":"0000831259-17-000032","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-07"},{"start":"2017-07-01","end":"2017-09-30","val":1448000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-07-01","end":"2017-09-30","val":1448000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2017-07-01","end":"2017-09-30","val":1448000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1447000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-01-01","end":"2017-12-31","val":1447000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2017-01-01","end":"2017-12-31","val":1447000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":1448000000,"accn":"0000831259-18-000008","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-20"},{"start":"2017-10-01","end":"2017-12-31","val":1448000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":1449000000,"accn":"0000831259-18-000016","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04"},{"start":"2018-01-01","end":"2018-03-31","val":1449000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-03-31","val":1449000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2018-01-01","end":"2018-03-31","val":1449000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q1"},{"start":"2018-01-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-01-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-18-000030","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08"},{"start":"2018-04-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-04-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2018-04-01","end":"2018-06-30","val":1449000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q2"},{"start":"2018-01-01","end":"2018-09-30","val":1449000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-01-01","end":"2018-09-30","val":1449000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1450000000,"accn":"0000831259-18-000036","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09"},{"start":"2018-07-01","end":"2018-09-30","val":1450000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-07-01","end":"2018-09-30","val":1450000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2018-07-01","end":"2018-09-30","val":1450000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q3"},{"start":"2018-01-01","end":"2018-12-31","val":1449000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-01-01","end":"2018-12-31","val":1449000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2018-01-01","end":"2018-12-31","val":1449000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16","frame":"CY2018"},{"start":"2018-10-01","end":"2018-12-31","val":1450000000,"accn":"0000831259-19-000009","fy":2018,"fp":"FY","form":"10-K","filed":"2019-02-15"},{"start":"2018-10-01","end":"2018-12-31","val":1450000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2018Q4"},{"start":"2019-01-01","end":"2019-03-31","val":1451000000,"accn":"0000831259-19-000020","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-07"},{"start":"2019-01-01","end":"2019-03-31","val":1451000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-03-31","val":1451000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-01-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-19-000033","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-06"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-04-01","end":"2019-06-30","val":1451000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2"},{"start":"2019-01-01","end":"2019-09-30","val":1451000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-01-01","end":"2019-09-30","val":1451000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-19-000039","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-06"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-07-01","end":"2019-09-30","val":1452000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2019-01-01","end":"2019-12-31","val":1451000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2019-10-01","end":"2019-12-31","val":1452000000,"accn":"0000831259-20-000004","fy":2019,"fp":"FY","form":"10-K","filed":"2020-02-14","frame":"CY2019Q4"},{"start":"2020-01-01","end":"2020-03-31","val":1452000000,"accn":"0000831259-20-000020","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-07"},{"start":"2020-01-01","end":"2020-03-31","val":1452000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2020-04-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-20-000032","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-04-01","end":"2020-06-30","val":1453000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05","frame":"CY2020Q2"},{"start":"2020-01-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-01-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2020-07-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-20-000040","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2020-07-01","end":"2020-09-30","val":1453000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05","frame":"CY2020Q3"},{"start":"2020-01-01","end":"2020-12-31","val":1453000000,"accn":"0000831259-21-000009","fy":2020,"fp":"FY","form":"10-K","filed":"2021-02-16"},{"start":"2020-01-01","end":"2020-12-31","val":1453000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":1453000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-03-31","val":1462000000,"accn":"0000831259-21-000017","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-05"},{"start":"2021-01-01","end":"2021-03-31","val":1462000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":1465000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-01-01","end":"2021-06-30","val":1465000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1467000000,"accn":"0000831259-21-000029","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-05"},{"start":"2021-04-01","end":"2021-06-30","val":1467000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2021Q2"},{"start":"2021-01-01","end":"2021-09-30","val":1466000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-01-01","end":"2021-09-30","val":1466000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2021-07-01","end":"2021-09-30","val":1469000000,"accn":"0000831259-21-000038","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-05"},{"start":"2021-07-01","end":"2021-09-30","val":1469000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2021Q3"},{"start":"2021-01-01","end":"2021-12-31","val":1466000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1466000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":1466000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-03-31","val":1455000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":1455000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1451000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":1451000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-04-01","end":"2022-06-30","val":1447000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":1447000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2022Q2"},{"start":"2022-01-01","end":"2022-09-30","val":1444000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1444000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2022-07-01","end":"2022-09-30","val":1431000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-07-01","end":"2022-09-30","val":1431000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2022Q3"},{"start":"2022-01-01","end":"2022-12-31","val":1441000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":1441000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":1441000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-03-31","val":1433000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":1433000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":1434000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":1434000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-04-01","end":"2023-06-30","val":1434000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-04-01","end":"2023-06-30","val":1434000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2023Q2"},{"start":"2023-01-01","end":"2023-09-30","val":1434000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":1434000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":1435000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":1435000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2023-01-01","end":"2023-12-31","val":1434000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":1434000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1434000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":1436000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":1436000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1437000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":1437000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":1438000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-04-01","end":"2024-06-30","val":1438000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1438000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":1438000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":1438000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":1438000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":1438000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":1438000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":1438000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1438000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":1437000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1437000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":1437000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":1437000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"WeightedAverageNumberOfSharesRestrictedStock":{"label":"Weighted Average Number of Shares, Restricted Stock","description":"Number of shares of restricted stock determined by relating the portion of time within a reporting period that restricted shares have been outstanding to the total time in that period. Restricted shares are subject to sales, contractual, regulatory or other restrictions that prevent or inhibit the holder from freely disposing of them before the restriction ends.","units":{"shares":[{"start":"2008-01-01","end":"2008-12-31","val":0,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2008"},{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2009"},{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2010-01-01","end":"2010-03-31","val":2000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":2000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2010-04-01","end":"2010-06-30","val":2000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2010"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0000831259-11-000014","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000831259-11-000033","fy":2011,"fp":"Q1","form":"10-Q","filed":"2011-05-06"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-04-01","end":"2011-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1000000,"accn":"0000831259-11-000050","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-05"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0000831259-11-000062","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1000000,"accn":"0000831259-12-000014","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-27","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000831259-12-000024","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-07","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03"},{"start":"2012-04-01","end":"2012-06-30","val":1000000,"accn":"0000831259-12-000036","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-03","frame":"CY2012Q2"}]}},"WriteOffOfDeferredDebtIssuanceCost":{"label":"Write off of Deferred Debt Issuance Cost","description":"Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.","units":{"USD":[{"start":"2016-04-01","end":"2016-06-30","val":2000000,"accn":"0000831259-16-000089","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-09-30","val":4000000,"accn":"0000831259-16-000105","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"}]}},"WriteOffOfInventory":{"label":"Write-off of Inventory (Deprecated 2009-01-31)","description":"The charge against earnings that represents the reduction of the currently-stated financial value of inventory items based on a determination that future worth is less than the acquisition cost due to obsolescence or market changes.","units":{"USD":[{"start":"2008-01-01","end":"2008-03-31","val":1000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2008Q1"},{"start":"2009-01-01","end":"2009-03-31","val":19000000,"accn":"0000831259-09-000047","fy":2009,"fp":"Q1","form":"10-Q","filed":"2009-05-11","frame":"CY2009Q1"}]}},"AvailableForSaleSecuritiesDebtSecuritiesNoncurrent":{"label":"Debt Securities, Available-for-sale, Noncurrent","description":"Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.","units":{"USD":[{"end":"2020-12-31","val":70000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":74000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":74000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":79000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":79000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":84000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":84000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":102000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":102000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":125000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"FinanceLeasePrincipalPayments":{"label":"Finance Lease, Principal Payments","description":"Amount of cash outflow for principal payment on finance lease.","units":{"USD":[{"start":"2019-01-01","end":"2019-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":4000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":4000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":25000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":25000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":25000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":38000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":41000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":3000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":15000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":24000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":37000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"LossContingencyAccrualCarryingValueNoncurrent":{"label":"Loss Contingency, Accrual, Noncurrent","description":"Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2020-12-31","val":42000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2020Q4I"},{"end":"2021-12-31","val":78000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-12-31","val":78000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":74000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":74000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":75000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":75000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1":{"label":"Noncash or Part Noncash Divestiture, Amount of Consideration Received","description":"Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction.","units":{"USD":[{"end":"2021-09-01","val":35000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-09-01","end":"2021-09-30","val":35000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q3I"}]}},"OriginationOfNotesReceivableFromRelatedParties":{"label":"Origination of Notes Receivable from Related Parties","description":"The cash outflow for a loan, supported by a promissory note, granted to related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.","units":{"USD":[{"start":"2019-01-01","end":"2019-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2019"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2020-01-01","end":"2020-12-31","val":0,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2020"},{"start":"2021-01-01","end":"2021-12-31","val":36000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":36000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":36000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":65000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2022-01-01","end":"2022-12-31","val":65000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":65000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":129000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":129000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":129000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":28000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":28000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"StockRepurchaseProgramAuthorizedAmount1":{"label":"Stock Repurchase Program, Authorized Amount","description":"Amount of stock repurchase plan authorized.","units":{"USD":[{"end":"2021-11-01","val":3000000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15"},{"end":"2021-11-01","val":3000000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2021-11-01","val":3000000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021Q3I"},{"end":"2022-06-30","val":3000000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"end":"2022-06-30","val":3000000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q2I"},{"end":"2022-07-01","val":5000000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-07-01","val":5000000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2022-07-31","val":5000000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"end":"2024-06-30","val":5000000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2I"},{"end":"2024-09-30","val":5000000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"}]}},"TimeDeposits":{"label":"Time Deposits","description":"Amount of time deposit liabilities, including certificates of deposit.","units":{"USD":[{"end":"2021-12-31","val":113000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":103000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022Q4I"},{"end":"2023-12-31","val":97000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023Q4I"},{"end":"2024-12-31","val":100000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"},{"end":"2025-03-31","val":300000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"}]}},"TreasuryStockRetiredCostMethodAmount":{"label":"Treasury Stock, Retired, Cost Method, Amount","description":"Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.","units":{"USD":[{"start":"2021-01-01","end":"2021-12-31","val":500000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":500000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2021-10-01","end":"2021-12-31","val":488000000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":541000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":1200000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":645000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2"},{"start":"2021-11-01","end":"2022-09-30","val":1800000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":1300000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-12-31","val":1300000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2021-07-01","end":"2023-06-30","val":1800000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2021-07-01","end":"2023-09-30","val":1800000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-12-31","val":1300000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2021-11-17","end":"2024-07-31","val":1900000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-07-31","val":59000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q2I"},{"start":"2025-01-01","end":"2025-03-31","val":55000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":107000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":107000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"TreasuryStockSharesAcquired":{"label":"Treasury Stock, Shares, Acquired","description":"Number of shares that have been repurchased during the period and are being held in treasury.","units":{"shares":[{"start":"2021-01-01","end":"2021-12-31","val":12740000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"start":"2021-01-01","end":"2021-12-31","val":12740000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2021-10-01","end":"2021-12-31","val":12700000,"accn":"0000831259-22-000009","fy":2021,"fp":"FY","form":"10-K","filed":"2022-02-15","frame":"CY2021Q4"},{"start":"2022-01-01","end":"2022-03-31","val":12300000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":12300000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":29400000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-04-01","end":"2022-06-30","val":17100000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05","frame":"CY2022Q2"},{"start":"2021-11-01","end":"2022-09-30","val":47900000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":35100000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-12-31","val":35120000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2022"},{"start":"2022-07-11","end":"2022-12-31","val":0,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2022-07-11","end":"2022-12-31","val":0,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2021-07-01","end":"2023-06-30","val":47800000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2021-07-01","end":"2023-09-30","val":47800000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-12-31","val":35120000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2023"},{"start":"2021-11-17","end":"2024-07-31","val":49000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-07-31","val":1200000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q2I"},{"start":"2025-01-01","end":"2025-03-31","val":1400000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":2900000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":2900000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"PaymentsToFundLongtermLoansToRelatedParties":{"label":"Payments to Fund Long-term Loans to Related Parties","description":"The cash outflow associated with extending a long-term loan to a related party. Alternate caption: Payments for Advances to Affiliates.","units":{"USD":[{"start":"2021-01-01","end":"2021-03-31","val":0,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05","frame":"CY2021Q1"},{"start":"2021-01-01","end":"2021-06-30","val":0,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2021-01-01","end":"2021-09-30","val":0,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-03-31","val":9000000,"accn":"0000831259-22-000028","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-05"},{"start":"2022-01-01","end":"2022-03-31","val":9000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04","frame":"CY2022Q1"},{"start":"2022-01-01","end":"2022-06-30","val":34000000,"accn":"0000831259-22-000043","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-05"},{"start":"2022-01-01","end":"2022-06-30","val":34000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2022-01-01","end":"2022-09-30","val":51000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04"},{"start":"2022-01-01","end":"2022-09-30","val":51000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-03-31","val":24000000,"accn":"0000831259-23-000023","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-04"},{"start":"2023-01-01","end":"2023-03-31","val":24000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2023Q1"},{"start":"2023-01-01","end":"2023-06-30","val":61000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03"},{"start":"2023-01-01","end":"2023-06-30","val":61000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2023-01-01","end":"2023-09-30","val":109000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-01-01","end":"2023-09-30","val":109000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-03-31","val":28000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08"},{"start":"2024-01-01","end":"2024-03-31","val":28000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":28000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-01-01","end":"2024-06-30","val":28000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-01-01","end":"2024-09-30","val":28000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":28000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-03-31","val":0,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":0,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-01-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1":{"label":"Stock Repurchase Program, Remaining Authorized Repurchase Amount","description":"Amount remaining of a stock repurchase plan authorized.","units":{"USD":[{"end":"2022-09-30","val":3200000000,"accn":"0000831259-22-000049","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-04","frame":"CY2022Q3I"},{"end":"2023-06-30","val":3200000000,"accn":"0000831259-23-000032","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-03","frame":"CY2023Q2I"},{"end":"2023-09-30","val":3200000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3I"},{"end":"2024-03-31","val":3200000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1I"}]}},"PrepaidRent":{"label":"Prepaid Rent","description":"Amount of asset related to consideration paid in advance for rent that provides economic benefits within a future period of one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2021-12-31","val":2000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15","frame":"CY2021Q4I"},{"end":"2022-12-31","val":26000000,"accn":"0000831259-23-000013","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-15"},{"end":"2022-12-31","val":26000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":39000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":39000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":9000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024Q4I"}]}},"AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease":{"label":"Accrual for Environmental Loss Contingencies, Period Increase (Decrease)","description":"Increase (decrease) in the accrual for environmental loss contingencies during the reporting period.","units":{"USD":[{"start":"2023-01-01","end":"2023-09-30","val":199000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03"},{"start":"2023-07-01","end":"2023-09-30","val":83000000,"accn":"0000831259-23-000037","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-03","frame":"CY2023Q3"},{"start":"2024-01-01","end":"2024-03-31","val":56000000,"accn":"0000831259-24-000019","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-08","frame":"CY2024Q1"},{"start":"2024-04-01","end":"2024-06-30","val":79000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07","frame":"CY2024Q2"},{"start":"2024-07-01","end":"2024-09-30","val":82000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"}]}},"AdministrativeFeesExpense":{"label":"Administrative Fees Expense","description":"Amount of expense for administrative services provided to the limited liability company (LLC) or limited partnership (LP) by the managing member or general partner, affiliate of managing member or general partner, or affiliate of LLC or LP, for example, but not limited to, salaries, rent, or overhead costs.","units":{"USD":[{"start":"2021-01-01","end":"2021-12-31","val":16000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":41000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":55000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":55000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":4000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2024"},{"start":"2025-03-01","end":"2025-03-31","val":59000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-03-01","end":"2025-03-31","val":59000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q1I"}]}},"FiniteLivedIntangibleAssetsNet":{"label":"Finite-Lived Intangible Assets, Net","description":"Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.","units":{"USD":[{"end":"2022-12-31","val":202000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":208000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":208000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":214000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":219000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"TreasuryStockCommonShares":{"label":"Treasury Stock, Common, Shares","description":"Number of previously issued common shares repurchased by the issuing entity and held in treasury.","units":{"shares":[{"end":"2022-12-31","val":183000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2022Q4I"},{"end":"2023-12-31","val":184000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"end":"2023-12-31","val":184000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-12-31","val":187000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":187000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-12-31","val":191000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense","description":"Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"start":"2021-01-01","end":"2021-12-31","val":34000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16","frame":"CY2021"},{"start":"2022-01-01","end":"2022-12-31","val":7000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2022-01-01","end":"2022-12-31","val":-7000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":153000000,"accn":"0000831259-24-000011","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-16"},{"start":"2023-01-01","end":"2023-12-31","val":-153000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":-153000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":8000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":8000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":-3000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"UnrecognizedTaxBenefitsPeriodIncreaseDecrease":{"label":"Unrecognized Tax Benefits, Period Increase (Decrease)","description":"Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.","units":{"USD":[{"start":"2024-05-01","end":"2024-05-31","val":-269000000,"accn":"0000831259-24-000031","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-07"},{"start":"2024-05-01","end":"2024-05-31","val":-269000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q2I"}]}},"Dividends":{"label":"Dividends","description":"Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.","units":{"USD":[{"start":"2023-01-01","end":"2023-09-30","val":1056000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-07-01","end":"2023-09-30","val":332000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2023Q3"},{"start":"2024-01-01","end":"2024-09-30","val":1918000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-07-01","end":"2024-09-30","val":800000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3"}]}},"PaymentsToAcquireAdditionalInterestInSubsidiaries":{"label":"Payments to Acquire Additional Interest in Subsidiaries","description":"The cash outflow associated with the purchase of noncontrolling interest during the period.","units":{"USD":[{"start":"2022-01-01","end":"2022-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-09-30","val":0,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-09-30","val":210000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"start":"2024-01-01","end":"2024-09-30","val":210000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-01-01","end":"2024-12-31","val":210000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":210000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"ValueAddedTaxReceivableCurrent":{"label":"Value Added Tax Receivable, Current","description":"Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2023-12-31","val":455000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08"},{"end":"2023-12-31","val":455000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2023Q4I"},{"end":"2024-09-30","val":570000000,"accn":"0000831259-24-000039","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-08","frame":"CY2024Q3I"},{"end":"2024-12-31","val":564000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"end":"2024-12-31","val":564000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"end":"2024-12-31","val":564000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"end":"2024-12-31","val":564000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"end":"2024-12-31","val":564000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024Q4I"},{"end":"2025-03-31","val":565000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1I"},{"end":"2025-06-30","val":474000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2I"},{"end":"2025-09-30","val":548000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3I"},{"end":"2025-12-31","val":686000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings":{"label":"Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings","description":"Amount of decrease in additional paid in capital (APIC) resulting from dividends legally declared (or paid) in excess of retained earnings balance.","units":{"USD":[{"start":"2022-01-01","end":"2022-12-31","val":1684000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14","frame":"CY2022"},{"start":"2023-01-01","end":"2023-12-31","val":1489000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2023-01-01","end":"2023-12-31","val":1489000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-03-31","val":390000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2024Q1"},{"start":"2024-01-01","end":"2024-06-30","val":1118000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2024-04-01","end":"2024-06-30","val":728000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2024Q2"},{"start":"2024-01-01","end":"2024-09-30","val":1918000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2024-07-01","end":"2024-09-30","val":800000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2024Q3"},{"start":"2024-01-01","end":"2024-12-31","val":2699000000,"accn":"0000831259-25-000006","fy":2023,"fp":"FY","form":"10-K","filed":"2025-02-14"},{"start":"2024-01-01","end":"2024-12-31","val":2699000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-03-31","val":328000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08","frame":"CY2025Q1"},{"start":"2025-01-01","end":"2025-06-30","val":1057000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08"},{"start":"2025-04-01","end":"2025-06-30","val":729000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q2"},{"start":"2025-01-01","end":"2025-09-30","val":1922000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-07-01","end":"2025-09-30","val":865000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06","frame":"CY2025Q3"},{"start":"2025-01-01","end":"2025-12-31","val":2139000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"LossContingencyLossInPeriod":{"label":"Loss Contingency, Loss in Period","description":"The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.","units":{"USD":[{"start":"2025-03-01","end":"2025-03-31","val":59000000,"accn":"0000831259-25-000018","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-08"},{"start":"2025-03-01","end":"2025-03-31","val":59000000,"accn":"0000831259-25-000031","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-08","frame":"CY2025Q1I"}]}},"ProceedsFromInsuranceSettlementInvestingActivities":{"label":"Proceeds from Insurance Settlement, Investing Activities","description":"Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities.","units":{"USD":[{"start":"2024-01-01","end":"2024-09-30","val":0,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"},{"start":"2025-01-01","end":"2025-09-30","val":25000000,"accn":"0000831259-25-000050","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-06"}]}},"DebtWeightedAverageInterestRate":{"label":"Debt, Weighted Average Interest Rate","description":"Weighted average interest rate of debt outstanding.","units":{"pure":[{"end":"2025-12-31","val":0.039,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025Q4I"}]}},"EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectAmount":{"label":null,"description":null,"units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":10000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationCrossBorderTaxEffectPercent":{"label":null,"description":null,"units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"EffectiveIncomeTaxRateReconciliationTaxContingencies":{"label":"Effective Income Tax Rate Reconciliation, Tax Contingency, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.","units":{"pure":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-0.03,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxesPaidNet":{"label":"Income Taxes Paid, Net","description":"The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.","units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":2007000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2552000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2898000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxPaidFederalAfterRefundReceived":{"label":null,"description":null,"units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxPaidForeignAfterRefundReceived":{"label":null,"description":null,"units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":2007000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":2551000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":2898000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxPaidStateAndLocalAfterRefundReceived":{"label":null,"description":null,"units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":1000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationTaxContingencies":{"label":"Effective Income Tax Rate Reconciliation, Tax Contingency, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.","units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":28000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":-228000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":6000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"IncomeTaxReconciliationTaxCreditsOther":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other tax credits.","units":{"USD":[{"start":"2023-01-01","end":"2023-12-31","val":0,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2023"},{"start":"2024-01-01","end":"2024-12-31","val":14000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2024"},{"start":"2025-01-01","end":"2025-12-31","val":25000000,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}},"NumberOfReportableSegments":{"label":"Number of Reportable Segments","description":"Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.","units":{"segment":[{"start":"2025-01-01","end":"2025-12-31","val":5,"accn":"0000831259-26-000012","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-13","frame":"CY2025"}]}}}}}