{"cik":48732,"entityName":"CENTERPOINT ENERGY HOUSTON ELECTRIC LLC","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":"2011-07-15","val":1000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-10-14","val":1000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2011Q4I"},{"end":"2012-04-16","val":1000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-07-16","val":1000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-10-16","val":1000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-04-18","val":1000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-07-18","val":1000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-10-18","val":1000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-04-15","val":1000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-07-24","val":1000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-10-22","val":1000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-04-20","val":1000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-07-31","val":1000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-10-23","val":1000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-10-23","val":1000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":1000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-04-20","val":1000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-07-29","val":1000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-10-21","val":1000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-04-21","val":1000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-07-27","val":1000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-10-26","val":1000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"},{"end":"2018-04-24","val":1000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"EntityNumberOfEmployees":{"label":"Entity Number of Employees","description":"Number of persons employed by the Entity","units":{"employee":[{"end":"2017-12-31","val":2816,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}],"pure":[{"end":"2012-12-31","val":2550,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2629,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2650,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2665,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2665,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":2738,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"}]}},"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":"2010-06-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q2I"},{"end":"2010-06-30","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q2I"},{"end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-06-30","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-06-30","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-06-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q2I"},{"end":"2012-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-06-30","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-06-30","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-06-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q2I"},{"end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-06-30","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-06-30","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-06-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q2I"},{"end":"2014-06-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-06-30","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-06-30","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-06-30","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-06-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q2I"},{"end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-06-30","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-06-30","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-06-30","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-06-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q2I"},{"end":"2016-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-06-30","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-06-30","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-06-30","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q2I"},{"end":"2017-06-30","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"}]}}},"us-gaap":{"AccountsAndNotesReceivableNet":{"label":"Accounts and Financing Receivable, after Allowance for Credit Loss","description":"Amount, after allowance for credit loss, of accounts and financing receivable. Includes, but is not limited to, notes and loan receivable.","units":{"USD":[{"end":"2010-12-31","val":203000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":203000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":203000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":267000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":276000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":201000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":201000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":201000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":201000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":201000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":208000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":286000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":307000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":222000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":222000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":222000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":222000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":222000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":227000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":301000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":294000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":261000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":261000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":261000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":261000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":261000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":252000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":320000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":347000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":237000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":253000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":293000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":302000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":302000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":234000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":219000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":297000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":354000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":225000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":225000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":225000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":225000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":225000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":218000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":279000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":333000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":284000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":284000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":299000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":76000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":76000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":76000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":66000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":80000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":113000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":113000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":113000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":113000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":113000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":85000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":84000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":78000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":83000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":83000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":83000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":83000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":83000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":90000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":87000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":100000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":137000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":137000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":137000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":137000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":137000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":128000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":142000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":122000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":148000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":110000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":119000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":120000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":120000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":153000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":124000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":129000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":139000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":145000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":145000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":145000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":145000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":145000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":185000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":212000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":255000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":243000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":243000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":201000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":2805000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2805000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":2866000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2795000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2784000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2784000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":2784000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":2784000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-03-31","val":2812000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2805000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2800000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2839000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2839000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":2839000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":2839000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":2839000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":2880000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2881000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2919000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2907000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2907000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":2907000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2907000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":2907000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2949000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2989000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3026000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":3050000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":3102000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3148000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3191000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":3191000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":3209000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":3266000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":3320000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3377000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":3443000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":3443000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":3443000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":3443000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":3443000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":3508000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":3581000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":3593000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":3633000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":3633000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":3694000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":1230000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1230000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":1231000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1231000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1230000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1230000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":1230000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-03-31","val":1231000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1231000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1231000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1231000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1231000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1231000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2013-03-31","val":1232000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1232000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1232000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1232000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1232000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1232000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-03-31","val":1232000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1232000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1232000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1322000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1322000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":1322000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":1322000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2015-03-31","val":1322000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1322000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1322000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":1322000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":1322000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1322000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":1322000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1322000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-03-31","val":1322000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1322000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1322000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1696000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1696000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":1696000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":1696000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1696000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":1697000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1697000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1696000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1696000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1696000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1697000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"AllowanceForDoubtfulAccountsReceivable":{"label":"Accounts Receivable, Allowance for Credit Loss","description":"Amount of allowance for credit loss on accounts receivable.","units":{"USD":[{"end":"2011-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"AllowanceForDoubtfulAccountsReceivableCurrent":{"label":"Accounts Receivable, Allowance for Credit Loss, Current","description":"Amount of allowance for credit loss on accounts receivable, classified as current.","units":{"USD":[{"end":"2013-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-03-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":4000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":1000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":1000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"AmortizationOfFinancingCosts":{"label":"Amortization of Debt Issuance Costs","description":"Amount of amortization expense attributable to debt issuance costs.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":23000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":6000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":9000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":6000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":6000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":9000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":9000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":10000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":10000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":4000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":4000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":12000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":12000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":12000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":12000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":12000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":8000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":8000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":11000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":11000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":11000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":7000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":7000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":10000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":10000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":14000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":14000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":6000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":10000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":13000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"AmortizationOfRegulatoryAsset":{"label":"Amortization of Regulatory Asset","description":"The expense charged against earnings during the period to allocate the capitalized costs of regulatory assets over the periods expected to benefit from such costs.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":289000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":308000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":308000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":442000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":442000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":442000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":383000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":383000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":383000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":383000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":441000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":441000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":441000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":441000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":365000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":365000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":365000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":365000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":455000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":455000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":329000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-12-31","val":26000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2011-12-31","val":23000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":23000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2012-12-31","val":29000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":29000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":29000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":33000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":33000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":33000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":33000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":36000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014Q4I"},{"end":"2014-12-31","val":36000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2014-12-31","val":36000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":36000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":33000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":33000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":35000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"AssetRetirementObligationPeriodIncreaseDecrease":{"label":"Asset Retirement Obligation, Period Increase (Decrease)","description":"Amount of increase (decrease) in asset retirement obligations.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"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":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":-5000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-5000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-12-31","val":9832000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":9832000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":9832000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9877000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":11091000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":11004000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":11132000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":11056000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":10405000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10495000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10365000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":9611000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":9876000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":9812000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9822000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10051000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":10051000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":9790000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9946000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9962000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":9962000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":10046000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":10046000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":9960000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10065000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10090000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":10245000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10319000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10289000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10292000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":10292000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":10358000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":1589000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":1589000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":1589000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1636000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1629000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1670000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1670000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":1670000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":1670000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":1670000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":1449000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1625000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1553000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1575000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1575000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":1575000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1575000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":1575000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":864000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":949000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":830000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":733000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":733000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":733000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":733000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":733000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":950000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":884000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":925000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1045000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1047000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":1045000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1047000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":1047000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":1047000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":1047000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":730000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":832000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":813000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":813000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":865000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":762000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":855000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":945000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":979000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":979000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":979000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":979000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":979000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":955000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":967000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":927000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":830000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":830000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":903000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"AssetsNoncurrent":{"label":"Assets, Noncurrent","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 after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":3462000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":3462000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":3462000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3365000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4525000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4511000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":4511000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":4511000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":4511000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":4511000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":4440000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4327000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4251000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4179000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":4179000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":4179000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":4179000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":4179000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":4100000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4002000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3876000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3042000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3042000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":3042000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2975000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2873000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"}]}},"CapitalExpendituresIncurredButNotYetPaid":{"label":"Capital Expenditures Incurred but Not yet Paid","description":"Future cash outflow to pay for purchases of fixed assets that have occurred.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":28000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":35000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":39000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":37000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":37000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":30000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":35000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":35000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":38000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":38000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":47000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":47000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":46000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":46000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":42000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":42000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":44000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":44000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":44000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":50000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":50000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":44000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":44000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":51000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":51000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":50000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":50000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":50000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":50000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":41000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":41000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":49000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":49000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":35000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":35000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":35000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":64000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":47000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":47000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":50000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":50000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":52000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":52000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":52000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":69000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":54000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":54000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":52000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":52000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":52000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":52000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":65000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":65000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":57000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":57000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":75000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":70000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":104000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":78000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2008-12-31","val":166000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2008Q4I"},{"end":"2009-12-31","val":739000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2009-12-31","val":739000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2009-12-31","val":739000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2009Q4I"},{"end":"2009-12-31","val":739000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2010-06-30","val":577000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2I"},{"end":"2010-09-30","val":84000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3I"},{"end":"2010-12-31","val":198000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":198000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2010Q4I"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2010-12-31","val":198000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-03-31","val":82000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1I"},{"end":"2011-06-30","val":176000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":176000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2I"},{"end":"2011-09-30","val":103000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2011-09-30","val":103000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3I"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":220000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":995000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1I"},{"end":"2012-03-31","val":995000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-06-30","val":1057000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2I"},{"end":"2012-06-30","val":1057000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2012-09-30","val":699000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3I"},{"end":"2012-09-30","val":699000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2012Q4I"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":646000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":206000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1I"},{"end":"2013-03-31","val":206000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2013-06-30","val":344000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2I"},{"end":"2013-06-30","val":344000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2013-09-30","val":198000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3I"},{"end":"2013-09-30","val":198000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2013Q4I"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":207000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":348000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1I"},{"end":"2014-03-31","val":348000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-06-30","val":188000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2I"},{"end":"2014-06-30","val":188000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2014-09-30","val":215000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3I"},{"end":"2014-09-30","val":215000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-09-30","val":215000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2014Q4I"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":290000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":213000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1I"},{"end":"2015-03-31","val":213000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2015-06-30","val":236000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2I"},{"end":"2015-06-30","val":236000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2015-09-30","val":217000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3I"},{"end":"2015-09-30","val":217000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2015-09-30","val":217000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":264000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":205000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1I"},{"end":"2016-03-31","val":205000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-06-30","val":251000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2I"},{"end":"2016-06-30","val":251000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2016-09-30","val":270000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3I"},{"end":"2016-09-30","val":270000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2016-12-31","val":341000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":341000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":341000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":341000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":341000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":240000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":245000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":200000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":238000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":238000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":191000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2009-01-01","end":"2009-12-31","val":573000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-162000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-655000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-541000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-541000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-116000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-22000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-22000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-95000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-95000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":775000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":775000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":837000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":837000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":479000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":479000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-440000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-440000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-302000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-302000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-448000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-448000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-439000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-439000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-439000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-439000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":141000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":141000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-19000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-19000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":8000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":8000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":8000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":83000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":83000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":83000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":83000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-77000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-77000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-54000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-54000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-73000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-73000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-73000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-26000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-26000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-26000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-26000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-59000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-59000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-13000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-13000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":6000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":6000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":77000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":77000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-101000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-96000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-141000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-103000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","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":"2016-12-31","val":381000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2016Q4I"},{"end":"2017-03-31","val":276000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1I"},{"end":"2017-12-31","val":274000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2018-03-31","val":229000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":-105000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2018-01-01","end":"2018-03-31","val":-45000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2013-12-31","val":766000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":766000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":135000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":135000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":180000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2009-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"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":"2009-12-31","val":1000000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1000000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1000000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-12-31","val":1000000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1000000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":1000000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-12-31","val":1000000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":1000000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":1000000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1000000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1000000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":1000000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":1000000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1000000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1000000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":1000000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"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":"2010-12-31","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2015-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":224000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":17000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":87000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":87000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":70000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":70000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":225000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":225000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":138000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":138000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":277000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":277000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":17000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":17000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":92000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":75000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":222000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":130000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":432000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":56000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"CostsAndExpenses":{"label":"Costs and Expenses","description":"Total costs of sales and operating expenses for the period.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1901000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":1445000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":506000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1963000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1963000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1963000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":524000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1077000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-04-01","end":"2014-06-30","val":553000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1684000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":1684000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":1684000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":607000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":607000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":607000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":2250000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":2250000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":2250000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2250000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":516000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":516000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":1063000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":1063000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":547000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":547000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":1646000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":1646000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":1646000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":583000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":583000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":583000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2238000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2238000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":2238000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":2238000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":577000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":577000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":1182000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":1182000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":605000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":605000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1833000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":1833000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":651000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":651000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":2432000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":2432000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":553000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":561000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":1149000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":588000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1745000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":596000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":2387000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":636000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-01-01","end":"2010-12-31","val":105000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":80000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":80000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":160000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":160000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":160000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":201000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":201000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":201000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":201000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":136000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":136000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":136000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":136000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":106000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":165000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":165000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":70000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":122000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":99000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":99000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":182000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":182000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":182000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":221000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":221000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":221000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":221000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":155000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":155000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":155000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":155000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":127000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":127000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":127000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":127000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":183000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":183000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":89000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":17000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":20000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":20000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":19000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":19000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":19000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":19000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":18000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":18000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":19000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"CustomerDepositsCurrent":{"label":"Customer Deposits, Current","description":"The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings.","units":{"USD":[{"end":"2011-12-31","val":23000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":27000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":27000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":21000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":21000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":24000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":24000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":24000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":12000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":12000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DebtInstrumentUnamortizedDiscount":{"label":"Debt Instrument, Unamortized Discount","description":"Amount, after accumulated amortization, of debt discount.","units":{"USD":[{"end":"2013-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":8000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":8000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":8000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":8000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":8000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DebtInstrumentUnamortizedDiscountPremiumNet":{"label":"Debt Instrument, Unamortized Discount (Premium), Net","description":"Amount, after accumulated amortization, of debt discount (premium).","units":{"USD":[{"end":"2015-12-31","val":8000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2016-12-31","val":9000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":9000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":10000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DebtWeightedAverageInterestRate":{"label":"Debt, Weighted Average Interest Rate","description":"Weighted average interest rate of debt outstanding.","units":{"pure":[{"end":"2015-12-31","val":0.008,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.008,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0.0104,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0.019,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DeferredCompensationArrangementWithIndividualCompensationExpense":{"label":"Deferred Compensation Arrangement with Individual, Compensation Expense","description":"The compensation expense recognized during the period pertaining to the deferred compensation arrangement.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":-5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":146000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":146000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":-34000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-34000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":-98000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2015-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2016-12-31","val":23000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":23000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":22000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2009-01-01","end":"2009-12-31","val":16000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-46000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-21000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":26000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":60000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":60000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":188000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":188000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-11000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-11000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-30000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-30000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-36000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-36000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-69000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-10000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-10000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-33000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-33000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-48000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-48000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-75000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":-29000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-29000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-78000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-78000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-95000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-95000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-95000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-24000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-28000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-28000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-56000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-56000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-114000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-114000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-114000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-3000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-17000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-17000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-51000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-51000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-34000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-34000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":8000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":8000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":23000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":29000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-98000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-20000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"USD":[{"end":"2012-12-31","val":2201000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2117000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2132000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":2110000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2110000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2112000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":2127000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2127000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2127000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":2083000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2066000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":1295000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"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":"2011-12-31","val":107000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":105000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":105000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":100000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":100000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":111000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":111000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":113000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":95000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":95000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":95000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":80000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":63000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":236000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsGrossCurrent":{"label":"Deferred Tax Assets, Gross, Current","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.","units":{"USD":[{"end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsGrossNoncurrent":{"label":"Deferred Tax Assets, Gross, Noncurrent","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.","units":{"USD":[{"end":"2011-12-31","val":104000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":104000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":104000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":97000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":97000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":111000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsLiabilitiesNetCurrent":{"label":"Deferred Tax Assets, Net, Current","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.","units":{"USD":[{"end":"2010-12-31","val":3000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":3000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":3000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":7000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":3000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":2000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":2000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"}]}},"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":"2010-12-31","val":-1428000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":1428000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":-1428000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1428000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-2154000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":-2113000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":-2113000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":-2113000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":-2113000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":-2113000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":-2137000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-2119000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":-2134000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-2097000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q4I"},{"end":"2012-12-31","val":-2097000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":-2097000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":-2097000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":-2089000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-2066000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-2058000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"}]}},"DeferredTaxAssetsOtherTaxCarryforwards":{"label":"Deferred Tax Assets, Other Tax Carryforwards","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax carryforwards, classified as other.","units":{"USD":[{"end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"}]}},"DeferredTaxAssetsRegulatoryAssetsAndLiabilities":{"label":"Deferred Tax Assets, Regulatory Assets and Liabilities","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences derived regulatory assets and liabilities.","units":{"USD":[{"end":"2010-12-31","val":4000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2016-12-31","val":17000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":198000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2011-12-31","val":94000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":92000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.","units":{"USD":[{"end":"2014-12-31","val":92000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":92000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":47000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":47000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":28000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseOther":{"label":"Deferred Tax Assets, Tax Deferred Expense, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from provisions, reserves, allowances, and accruals, classified as other.","units":{"USD":[{"end":"2014-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":7000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":4000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":4000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.","units":{"USD":[{"end":"2011-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations":{"label":"Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset.","units":{"USD":[{"end":"2014-12-31","val":12000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":12000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":13000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":12000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":12000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2011-12-31","val":2110000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2096000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2096000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":2017000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2032000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":1999000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1999000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1999000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":1059000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2011-12-31","val":2217000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2097000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2201000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":2020000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2035000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":2035000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2035000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":2035000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2008000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1960000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1945000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1999000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2001000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":1999000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2001000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":2001000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":2001000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":2001000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":1975000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1949000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1899000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":1899000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2032000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":2032000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2020000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1988000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":2003000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":2013000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2031000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2039000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1059000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1059000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1040000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2014-12-31","val":1284000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1284000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":1447000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1447000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":1447000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1541000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1541000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":1030000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities":{"label":"Deferred Tax Liabilities, Regulatory Assets and Liabilities","description":"Amount of deferred tax liability attributable to taxable temporary differences from regulatory assets and liabilities.","units":{"USD":[{"end":"2011-12-31","val":1274000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1098000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1098000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":954000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":966000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":826000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":826000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":828000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":680000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":680000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":680000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":542000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":525000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":265000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedBenefitPlanActualReturnOnPlanAssets":{"label":"Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)","description":"Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanActuarialGainLoss":{"label":"Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)","description":"Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":31000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":17000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":17000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":39000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-39000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-35000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-35000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-35000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":61000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":-10000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanAmortizationOfGainsLosses":{"label":"Defined Benefit Plan, Amortization of Gain (Loss)","description":"Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":-3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":-4000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-4000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-4000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-4000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanAmortizationOfPriorServiceCostCredit":{"label":"Defined Benefit Plan, Amortization of Prior Service Cost (Credit)","description":"Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanAmortizationOfTransitionObligationsAssets":{"label":"Defined Benefit Plan, Amortization of Transition Obligations (Assets) (Deprecated 2017-01-31)","description":"The amount of the transition obligation or asset recognized in net periodic benefit cost.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-06-30","val":3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanAssetsTransferredToFromPlan":{"label":"Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan","description":"Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-20000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-20000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2013-12-31","val":0.0475,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0.039,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.039,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":0.039,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":0.0435,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.0435,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":0.0435,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0.0415,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.0415,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":0.036,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate":{"label":"Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate","description":"Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.","units":{"pure":[{"start":"2010-01-01","end":"2010-12-31","val":0.057,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0.052,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.052,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0.048,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.048,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":0.048,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0.039,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.039,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.039,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.039,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0.0475,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0.0475,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.0475,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.0475,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.039,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.039,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0.039,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0.039,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.0435,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.0435,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":0.0415,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":0.075,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0.075,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.075,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0.06,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.06,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.06,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.06,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2013-12-31","val":0.06,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"start":"2014-01-01","end":"2014-12-31","val":0.06,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0.06,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.06,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.06,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2014-12-31","val":0.0545,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.0545,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":0.0545,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.0545,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.0545,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0.0545,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0.0545,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2015-12-31","val":0.05,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.05,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":0.05,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.05,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.05,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2016-12-31","val":0.0475,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":0.0475,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":0.0475,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"end":"2017-12-31","val":0.0475,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedBenefitPlanBenefitObligation":{"label":"Defined Benefit Plan, Benefit Obligation","description":"Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.","units":{"USD":[{"end":"2010-12-31","val":306000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2011-12-31","val":335000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":335000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2012-12-31","val":351000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":351000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":351000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":311000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":311000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":311000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":311000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":347000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014Q4I"},{"end":"2014-12-31","val":347000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2014-12-31","val":347000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":347000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":283000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":283000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2015-12-31","val":283000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":283000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":217000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":217000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":225000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedBenefitPlanBenefitObligationBenefitsPaid":{"label":"Defined Benefit Plan, Benefit Obligation, Benefits Paid","description":"Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant":{"label":"Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant","description":"Amount of contributions received by defined benefit plan from participant which increase benefit obligation.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanBenefitObligationPrescriptionDrugSubsidyReceipt":{"label":"Defined Benefit Plan, Benefit Obligation, Prescription Drug Subsidy Receipt","description":"Amount, before benefit payment, of receipt from prescription drug subsidy which increases benefit obligation of defined benefit postretirement plan.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanBenefitsPaid":{"label":"Defined Benefit Plan, Benefits Paid (Deprecated 2017-01-31)","description":"The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":23000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":21000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":21000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":19000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":19000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":17000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":17000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":17000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"DefinedBenefitPlanContributionsByEmployer":{"label":"Defined Benefit Plan, Plan Assets, Contributions by Employer","description":"Amount of contribution received by defined benefit plan from employer which increases plan assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":10000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanContributionsByPlanParticipants":{"label":"Defined Benefit Plan, Contributions by Plan Participants (Deprecated 2017-01-31)","description":"The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1":{"label":"Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation","description":"Amount of decrease in accumulated postretirement benefit obligation from one-percentage-point decrease in assumed health care cost trend rate.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":11000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-8000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":11000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":8000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1":{"label":"Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components","description":"Amount of decrease in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point decrease in assumed health care cost trend rate.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation":{"label":"Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation","description":"Amount of increase in accumulated postretirement benefit obligation from one-percentage-point increase in assumed health care cost trend rate.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":13000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":9000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents":{"label":"Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components","description":"Amount of increase in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point increase in assumed health care cost trend rate.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear":{"label":"Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2013-01-31)","description":"The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.","units":{"USD":[{"end":"2012-12-31","val":7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"}]}},"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":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":4000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-06-30","val":3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanFairValueOfPlanAssets":{"label":"Defined Benefit Plan, Plan Assets, Amount","description":"Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.","units":{"USD":[{"end":"2010-12-31","val":122000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2011-12-31","val":116000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":116000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2012-12-31","val":115000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":115000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":115000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":114000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":114000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":114000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":114000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":115000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014Q4I"},{"end":"2014-12-31","val":115000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2014-12-31","val":115000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":115000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":110000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":110000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2015-12-31","val":110000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":110000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":93000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedBenefitPlanGrossPrescriptionDrugSubsidyReceiptsReceived":{"label":"Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received (Deprecated 2017-01-31)","description":"Amount of the period's gross receipts received from the prescription drug subsidy, which is to be used in the roll forward of the accumulated postretirement benefit obligation of an applicable postretirement benefit plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear":{"label":"Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year (Deprecated 2017-01-31)","description":"The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.08,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.09,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"}]}},"DefinedBenefitPlanInterestCost":{"label":"Defined Benefit Plan, Interest Cost","description":"Amount of cost recognized for passage of time related to defined benefit plan.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":8000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":4000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-06-30","val":8000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":4000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":13000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":10000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":9000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":13000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":7000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":4000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-06-30","val":9000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":5000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanPlanAmendments":{"label":"Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment","description":"Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan.","units":{"USD":[{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":-4000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-4000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-4000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":-65000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-65000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanPlanAssetsBenefitsPaid":{"label":"Defined Benefit Plan, Plan Assets, Benefits Paid","description":"Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":20000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":14000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlanPlanAssetsContributionsByPlanParticipant":{"label":"Defined Benefit Plan, Plan Assets, Contributions by Plan Participant","description":"Amount of contributions received by defined benefit plan from participant which increases plan assets.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear":{"label":"Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year (Deprecated 2017-01-31)","description":"Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"DefinedBenefitPlanUltimateHealthCareCostTrendRate":{"label":"Defined Benefit Plan, Ultimate Health Care Cost Trend Rate (Deprecated 2017-01-31)","description":"The ultimate trend rate for health care costs.","units":{"pure":[{"start":"2011-01-01","end":"2011-12-31","val":0.055,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":0.055,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.055,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0.055,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.055,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0.05,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0.05,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.05,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.05,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.05,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0.05,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.045,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"DefinedBenefitPlanUltimateHealthCareCostTrendRate1":{"label":"Defined Benefit Plan, Ultimate Health Care Cost Trend Rate","description":"Ultimate trend rate for health care cost for defined benefit postretirement plan.","units":{"pure":[{"end":"2016-12-31","val":0.045,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":0.045,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"DefinedContributionPlanCostRecognized":{"label":"Defined Contribution Plan, Cost","description":"Amount of cost for defined contribution plan.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":15000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":15000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":17000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedContributionPlanEmployerMatchingContributionPercent":{"label":"Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay","description":"Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.06,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.06,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.06,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.06,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.06,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedContributionPlanEmployerMatchingContributionPercentOfMatch":{"label":"Defined Contribution Plan, Employer Matching Contribution, Percent of Match","description":"Percentage employer matches of the employee's percentage contribution matched.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":1,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent":{"label":"Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent","description":"Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.","units":{"pure":[{"start":"2014-01-01","end":"2014-12-31","val":0.5,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0.5,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.5,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.5,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":0.5,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"Depreciation":{"label":"Depreciation","description":"The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":273000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":265000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":265000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":265000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":280000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":280000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":280000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":280000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":295000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":295000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":295000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":295000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":316000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":316000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":316000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":316000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":349000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":349000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":354000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"DepreciationAndAmortization":{"label":"Depreciation, Depletion and Amortization, Nonproduction","description":"The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":480000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":277000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":145000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":450000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":173000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":582000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":125000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":274000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":274000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":149000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":149000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":453000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":453000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":179000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":179000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":587000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":147000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":344000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":197000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":563000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":219000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3"}]}},"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":"2010-01-01","end":"2010-12-31","val":582000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":587000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":587000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":147000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":344000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-04-01","end":"2012-06-30","val":197000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":563000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":219000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":729000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":154000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":154000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":340000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":340000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":186000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":186000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":530000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":530000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":190000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":190000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":685000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":685000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":685000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":685000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":176000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":176000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":372000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":372000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":196000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":196000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":602000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":602000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":602000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":230000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":230000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":230000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":768000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":768000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":768000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":768000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":151000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":151000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":325000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":325000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":174000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":174000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":526000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":526000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":526000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":201000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":201000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":201000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":705000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":705000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":705000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":705000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":189000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":189000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":406000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":406000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":217000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":217000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":659000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":659000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":253000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":253000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":838000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":838000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":152000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":152000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":332000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":180000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":525000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":193000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":724000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":233000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"DerivativeLiabilitiesCurrent":{"label":"Derivative Liability, Current","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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2015-12-31","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q4I"},{"end":"2016-06-30","val":2000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"}]}},"DueFromRelatedParties":{"label":"Due from Related Parties","description":"For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.","units":{"USD":[{"end":"2011-12-31","val":1027000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q4I"},{"end":"2012-09-30","val":293000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":448000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q4I"},{"end":"2012-12-31","val":448000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":448000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2013-03-31","val":201000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":27000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":86000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-03-31","val":114000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":87000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"}]}},"DueFromRelatedPartiesCurrent":{"label":"Due from Related Parties, Current","description":"The aggregate amount of receivables to be collected from 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, at the financial statement date. which are usually due within one year (or one business cycle).","units":{"USD":[{"end":"2011-12-31","val":1027000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":448000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":448000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-09-30","val":84000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":119000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":7000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":8000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":9000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":72000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":101000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":101000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":101000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":101000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":101000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":209000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":97000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":73000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":140000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"DueToRelatedPartiesCurrent":{"label":"Due to Related Parties, Current","description":"Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2011-12-31","val":32000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":32000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2012-09-30","val":45000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":92000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":92000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":92000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":92000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":92000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":32000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":177000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":121000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":80000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":87000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":120000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":104000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":121000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":53000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":231000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":215000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":215000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":348000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":497000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":496000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":256000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":88000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":33000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":54000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":40000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":104000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":104000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":39000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-01-01","end":"2010-12-31","val":0.367,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":0.36,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":0.35,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0.33,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":0.32,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":0.337,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.337,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":0.12,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.31,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":0.31,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":0.38,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":0.38,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":0.28,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":0.28,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":0.25,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":0.25,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":0.288,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.288,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":0.288,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0.32,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":0.32,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":0.36,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":0.36,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":0.37,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":0.37,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0.35,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":0.35,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":0.34,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":0.34,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":0.352,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.352,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.352,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.352,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":0.36,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":0.36,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":0.37,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":0.37,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":0.37,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":0.37,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0.35,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":0.35,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":0.35,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":0.34,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":0.34,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":0.34,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":0.34,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0.342,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.342,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.342,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":0.35,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":0.35,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":0.36,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":0.36,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":0.36,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":0.36,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":0.36,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":0.36,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0.36,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.36,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.36,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0.357,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0.357,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0.37,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":0.37,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":0.36,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":0.36,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":0.35,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":0.35,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0.35,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":0.35,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":0.35,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":0.35,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0.36,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0.36,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":0.36,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":0.36,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0.36,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0.35,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-0.02,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.22,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0.35,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0.35,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-12-31","val":0.35,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0.21,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"ExtraordinaryItemGainOrLossNetOfTaxAttributableToReportingEntity":{"label":"Extraordinary Item, Gain (Loss), Net of Tax, Attributable to Parent (Deprecated 2019-01-31)","description":"Net of tax amount of gain (loss) classified as extraordinary item, attributable to the parent.","units":{"USD":[{"start":"2005-12-01","end":"2005-12-31","val":-947000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2005-12-01","end":"2005-12-31","val":-947000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-09-30","val":598000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":598000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":598000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":598000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":598000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-07-01","end":"2011-09-30","val":598000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":598000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":598000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":598000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"ExtraordinaryItemNetOfTax":{"label":"Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest (Deprecated 2019-01-31)","description":"Net of tax amount of gain (loss) classified as extraordinary item, including amount attributable to noncontrolling interests.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q1"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q2"},{"start":"2011-07-01","end":"2011-09-30","val":598000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q3"},{"start":"2011-10-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4"}]}},"ExtraordinaryItemsGross":{"label":"Extraordinary Item, Gain (Loss), Gross (Deprecated 2019-01-31)","description":"This element represents the gains or losses whether arising from extinguishment of debt, prior period adjustments, or from other events or transactions, that are both unusual in nature and infrequent in occurrence thereby meeting the criteria for an event or transaction to be classified as an extraordinary item. This element is gross of the related tax effect.","units":{"USD":[{"start":"2011-07-01","end":"2011-09-30","val":921000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":921000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"}]}},"FairValueAssetsLevel1ToLevel2TransfersAmount":{"label":"Fair Value, Assets, Level 1 to Level 2 Transfers, Amount","description":"Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.","units":{"USD":[{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"FairValueAssetsLevel2ToLevel1TransfersAmount":{"label":"Fair Value, Assets, Level 2 to Level 1 Transfers, Amount","description":"Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.","units":{"USD":[{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"FairValueLiabilitiesLevel1ToLevel2TransfersAmount":{"label":"Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount","description":"Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.","units":{"USD":[{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"FairValueLiabilitiesLevel2ToLevel1TransfersAmount":{"label":"Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount","description":"Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.","units":{"USD":[{"end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"},{"end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple":{"label":"Income (Loss) from Operations before Extraordinary Items (Deprecated 2019-01-31)","description":"Income or Loss from continuing operations, net of taxes, including net Income or Loss from discontinued operations but before extraordinary items.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":208000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":182000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":92000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":200000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":200000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":24000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q1"},{"start":"2011-04-01","end":"2011-06-30","val":79000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":470000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":470000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":367000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":367000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":367000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":488000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":488000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":488000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-10-01","end":"2011-12-31","val":18000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-09-30","val":252000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":138000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":279000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":279000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":269000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest":{"label":"Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest","description":"Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":310000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":286000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":145000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":316000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":316000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":39000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":161000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":122000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":703000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":703000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":542000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":542000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":736000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":736000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":736000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":41000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":41000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":166000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":166000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":125000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":125000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":350000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":350000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":184000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":184000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":392000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":392000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":392000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":28000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":28000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":143000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":143000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":115000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":115000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":335000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":335000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":192000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":192000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":415000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":415000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":415000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":415000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":55000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":55000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":145000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":145000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":90000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":90000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":324000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":324000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":324000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":179000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":179000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":179000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":383000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":383000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":383000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":383000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":48000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":48000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":156000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":156000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":108000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":108000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":351000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":351000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":351000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":195000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":195000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":195000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":406000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":406000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":406000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":406000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":27000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":27000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":137000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":137000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":110000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":110000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":345000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":345000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":208000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":208000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":425000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":425000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":28000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":28000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":145000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":117000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":346000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":201000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":424000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":67000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-01-01","end":"2010-06-30","val":141000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":94000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-12-31","val":316000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":161000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":122000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":736000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":736000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":392000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":392000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":415000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"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":"2009-01-01","end":"2009-12-31","val":102000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":51000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":34000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":104000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":53000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":116000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":116000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":15000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":58000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":58000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":43000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":43000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":233000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":233000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":175000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":175000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":248000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":248000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":248000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":52000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":52000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":47000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":47000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":98000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":98000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":46000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":46000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":113000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":9000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":9000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":51000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":51000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":117000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":117000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":66000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":66000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":20000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":20000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":53000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":53000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":33000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":33000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":113000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":113000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":113000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":60000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":60000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":60000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":131000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":131000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":131000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":131000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":17000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":17000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":56000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":56000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":39000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":39000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":127000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":127000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":127000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":71000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":71000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":71000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":145000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":49000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":49000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":39000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":39000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":121000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":121000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":72000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":72000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":149000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":149000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":10000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":10000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":52000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":42000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":123000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":71000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-9000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":15000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2009-01-01","end":"2009-12-31","val":134000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":34000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":57000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":111000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":111000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-44000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-83000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-83000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-29000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-29000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":42000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":42000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":42000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":49000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":49000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":126000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":126000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":183000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":183000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":183000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":81000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":81000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":108000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":108000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":39000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":39000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":186000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":186000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":221000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":221000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":221000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":296000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":296000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":296000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":296000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-103000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-103000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":27000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":27000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":157000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":157000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":157000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":81000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":81000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":81000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":81000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-65000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-8000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-8000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":82000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":82000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":128000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":128000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":76000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":76000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":76000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":16000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-12-31","val":63000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":63000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":63000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":2000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":2000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":7000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":7000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":7000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":13000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-06-30","val":8000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":103000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":8000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":6000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":6000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":6000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":6000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":9000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":44000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2010-01-01","end":"2010-12-31","val":111000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":258000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":258000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":137000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":137000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":137000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":145000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":145000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":145000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":145000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":134000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":134000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":134000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":134000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":142000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":142000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":142000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":142000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":149000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":149000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":148000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-01-01","end":"2010-12-31","val":-7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-15000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-15000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":-11000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-11000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-11000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":-11000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-11000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-11000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-11000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":-12000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-12000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":-11000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2015-07-01","end":"2015-09-30","val":-5000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":-5000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"}]}},"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":"2010-01-01","end":"2010-12-31","val":10000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":12000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":12000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"IncomeTaxReconciliationTaxCreditsInvestment":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Investment, 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 investment tax credit.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"}]}},"IncomeTaxReconciliationTaxSettlementsDomestic":{"label":"Effective Income Tax Rate Reconciliation, Tax Settlement, Domestic, 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 domestic income tax settlement.","units":{"USD":[{"start":"2013-01-01","end":"2013-09-30","val":-5000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":-5000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2014-01-01","end":"2014-09-30","val":-5000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":-5000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3"}]}},"IncreaseDecreaseInAccountsAndOtherReceivables":{"label":"Increase (Decrease) in Accounts and Other Receivables","description":"The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-12000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":25000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":25000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":24000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":24000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":24000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-15000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":73000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":81000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-26000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-26000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":80000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":80000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":141000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":141000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-23000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-23000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":63000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":131000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":73000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-9000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInAccountsPayable":{"label":"Increase (Decrease) in Accounts Payable","description":"The increase (decrease) during the reporting period in the aggregate amount 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.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-78000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-2000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-9000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-8000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-8000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-21000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-21000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-21000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-21000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-23000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-23000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":10000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":10000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":48000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":48000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":48000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":48000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-21000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-21000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-15000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-15000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-16000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-16000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-16000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-14000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-14000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-7000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-7000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":48000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":48000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":57000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":105000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":59000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-16000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInAccountsReceivableAndOtherOperatingAssets":{"label":"Increase (Decrease) in Accounts Receivable and Other Operating Assets","description":"Amount of increase (decrease) in receivables, and operating assets classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-44000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-92000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":74000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-12000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-2000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-87000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":87000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":107000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":107000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":25000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-3000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":102000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":102000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":119000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":119000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2013-01-01","end":"2013-03-31","val":-5000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-5000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":96000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":96000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":84000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":84000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2014-01-01","end":"2014-03-31","val":-22000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-22000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":76000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":76000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":99000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":99000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":99000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":73000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":81000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":81000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"}]}},"IncreaseDecreaseInDerivativeAssetsAndLiabilities":{"label":"Increase (Decrease) in Derivative Assets and Liabilities","description":"The increase (decrease) during the period in the net carrying value of derivative instruments reported as assets and liabilities that are due to be disposed of within one year (or the normal operating cycle, if longer).","units":{"USD":[{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"}]}},"IncreaseDecreaseInIncomeTaxesReceivable":{"label":"Increase (Decrease) in Income Taxes Receivable","description":"The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":46000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":54000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-54000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-29000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":63000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-63000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-63000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-63000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-61000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-61000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":-61000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-2000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-7000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-7000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":6000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":6000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-7000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-7000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":103000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":103000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":103000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":103000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-103000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-103000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-95000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-95000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-103000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-103000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-103000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-44000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-44000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-44000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-44000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-59000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-59000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-59000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-59000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-59000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-59000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-53000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-53000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":38000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-6000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-6000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2009-01-01","end":"2009-12-31","val":-5000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-1000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-3000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":4000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":4000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":11000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":11000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":9000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":9000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":9000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":9000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":21000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":21000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":21000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-8000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-8000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-4000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":4000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":4000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":5000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":5000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":3000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-15000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInNotesPayableRelatedParties":{"label":"Increase (Decrease) in Notes Payable, Related Parties","description":"The increase (decrease) during the reporting period in the amount owed by the reporting entry in the form of loans and obligations (generally evidenced by promissory notes) made by the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.","units":{"USD":[{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-92000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-92000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-148000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-148000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-148000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-3000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-3000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-3000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":19000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":19000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":131000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":131000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":120000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":120000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":312000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":312000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":312000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":153000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":153000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":132000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":132000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-183000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-183000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-312000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-312000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":60000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-60000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInNotesPayableRelatedPartiesCurrent":{"label":"Increase (Decrease) in Notes Payable, Related Parties, Current","description":"The increase (decrease) during the reporting period in the current portion (due within one year or one business cycle, whichever is longer) of the amount owed by the reporting entity in the form of loans and obligations (generally evidenced by promissory notes) made by the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; an entity and its principal owners, management, or member of their immediate families; affiliates; or other parties with the ability to exert significant influence.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-8000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-148000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"IncreaseDecreaseInNotesReceivableRelatedParties":{"label":"Increase (Decrease) in Notes Receivable, Related Parties","description":"The increase (decrease) during the reporting period in the amount owed to the reporting entity in the form of loans and obligations (generally evidenced by promissory notes) made to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":289000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":109000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":585000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":610000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":610000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-53000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":60000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":60000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":117000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":117000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":111000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":111000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":111000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-1010000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-1010000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-1010000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-1010000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-746000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-746000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-577000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-577000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-577000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-256000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-256000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-433000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-433000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-369000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-369000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-1183000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1183000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1183000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-1183000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":90000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":90000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":79000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":79000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":43000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":43000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":43000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":107000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":107000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":107000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":107000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-107000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-107000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-107000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-107000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-107000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-107000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-107000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-107000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":96000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":96000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":107000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":107000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-5000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-29000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-96000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":133000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInOtherCurrentAssets":{"label":"Increase (Decrease) in Other Current Assets","description":"Amount of increase (decrease) in current assets classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":2000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":14000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-2000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-14000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":15000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-15000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-4000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-4000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-10000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-10000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-13000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-13000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-10000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-10000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":-17000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-17000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-15000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-15000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-11000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-11000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-11000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-15000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-15000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-18000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-18000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-19000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-19000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-19000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-15000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-15000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-18000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-18000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-3000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-3000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-2000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-2000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-2000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-5000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInOtherCurrentLiabilities":{"label":"Increase (Decrease) in Other Current Liabilities","description":"Amount of increase (decrease) in current liabilities classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-28000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-8000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":5000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":13000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":13000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-3000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":5000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":16000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":16000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-8000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-8000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-17000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-17000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":-42000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-42000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-36000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-36000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-18000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-18000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-18000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-13000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-13000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-13000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-13000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-15000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-15000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-15000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-40000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-40000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-40000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-40000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":10000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":14000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":14000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":24000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":24000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":21000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-7000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":25000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":16000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInOtherNoncurrentAssets":{"label":"Increase (Decrease) in Other Noncurrent Assets","description":"Amount of increase (decrease) in noncurrent assets classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":3000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-2000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":3000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":3000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-3000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-3000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-3000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-3000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-6000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-6000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-7000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-7000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-9000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-9000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":8000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":8000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-4000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-13000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInOtherNoncurrentLiabilities":{"label":"Increase (Decrease) in Other Noncurrent Liabilities","description":"Amount of increase (decrease) in noncurrent operating liabilities classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-13000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":5000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-13000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-2000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-2000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":4000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":10000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":10000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":10000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":5000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":2000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":2000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":5000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":5000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":5000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":3000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-4000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-4000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-2000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2009-01-01","end":"2009-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":2000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":6000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":6000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":6000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":6000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":6000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"}]}},"IncreaseDecreaseInRegulatoryAssetsAndLiabilities":{"label":"Increase (Decrease) in Regulatory Assets and Liabilities","description":"The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":63000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-6000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":17000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-6000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-20000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":25000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":25000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":28000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":28000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":28000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-22000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-22000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-20000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-20000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-25000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-25000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-28000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-28000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-28000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-15000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-15000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-11000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-11000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-21000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-21000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":5000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":5000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-19000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-19000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-20000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-20000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-36000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-36000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-36000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":31000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":31000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":69000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":69000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":70000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":70000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":110000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":110000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":28000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":28000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":59000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":149000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":148000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":26000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"IncreaseDecreaseInRestrictedCash":{"label":"Increase (Decrease) in Restricted Cash","description":"The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-26000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":5000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":15000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":15000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":13000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":13000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":12000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":12000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":13000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":13000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":13000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-2000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-2000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-13000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-13000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":10000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":10000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-5000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-5000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-13000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-13000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-9000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-9000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-9000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-12000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":2000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":2000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":2000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":5000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-8000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-8000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-5000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"InterestAndDebtExpense":{"label":"Interest and Debt Expense","description":"Interest and debt related expenses associated with nonoperating financing activities of the entity.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":158000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":74000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":37000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":113000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":39000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":149000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":149000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":37000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":75000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":75000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":38000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":38000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":113000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":113000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":38000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":38000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":150000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":150000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":150000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":38000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":38000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":74000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":74000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":36000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":36000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":110000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":110000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":36000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":36000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":141000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":141000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":141000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":30000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":30000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":53000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":53000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":23000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":23000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":77000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":77000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":24000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":24000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":99000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":99000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":99000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":99000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":24000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":24000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":53000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":53000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":29000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":29000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":80000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":80000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":80000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":27000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":27000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":27000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":109000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":109000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":109000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":109000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":29000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":29000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":58000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":58000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":29000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":29000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":88000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":88000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":88000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":30000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":30000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":30000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":118000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":118000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":118000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":118000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":31000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":31000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":62000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":62000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":31000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":31000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":94000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":94000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":32000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":32000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":126000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":126000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":33000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":33000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":65000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":32000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":97000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":32000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":128000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":33000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"InterestCostsIncurredCapitalized":{"label":"Capitalized Interest Costs, Including Allowance for Funds Used During Construction","description":"Amount of interest capitalized, including amount of allowance for funds used during construction.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":10000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":10000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":10000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"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":"2009-01-01","end":"2009-12-31","val":287000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":129000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":290000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":292000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":292000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":130000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":133000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":133000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":279000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":279000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":282000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":282000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":282000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":123000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":123000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":125000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":125000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":265000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":265000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":100000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":100000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":118000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":118000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":221000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":221000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":238000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":238000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":238000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":238000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":78000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":78000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":94000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":94000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":186000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":186000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":186000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":215000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":215000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":215000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":215000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":71000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":71000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":98000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":98000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":169000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":169000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":169000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":213000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":213000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":213000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":213000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":67000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":67000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":96000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":96000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":178000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":178000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":209000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":209000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":64000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":64000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":94000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":176000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":205000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":61000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-12-31","val":101000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":101000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":101000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":108000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":32000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":96000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":96000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":96000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":96000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":96000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":47000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":117000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":51000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":87000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":87000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":87000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":87000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":87000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":49000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":85000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":40000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":75000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":75000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":75000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":75000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":75000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":47000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":86000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":50000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":75000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":57000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":81000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":63000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":63000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":70000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":54000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":75000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":47000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":68000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":68000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":68000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":68000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":68000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":56000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":76000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":46000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":65000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":65000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":53000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":71000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":71000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":71000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":74000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":75000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":80000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":80000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":80000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":80000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":80000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":83000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":87000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":91000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":94000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":94000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":94000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":94000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":94000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":97000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":104000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":103000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":105000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q4I"},{"end":"2013-12-31","val":105000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":105000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":105000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":109000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":114000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":114000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"}]}},"InvestmentTaxCredit":{"label":"Investment Tax Credit","description":"The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"}]}},"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":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2010-12-31","val":9832000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":9832000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":9832000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9877000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":11091000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":11224000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":11004000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":11132000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":11056000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":11119000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":10405000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":10495000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10365000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":9611000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":9609000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":9876000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":9812000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9822000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10051000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":10051000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":10053000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":9790000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9946000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9962000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":9962000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":10025000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":10046000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":10046000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":9960000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10065000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10090000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":10211000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":10245000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":10319000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":10289000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":10292000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":10292000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":10358000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":662000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":662000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":662000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":724000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":671000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":793000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":793000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":793000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":793000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":793000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":1191000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1311000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1255000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1366000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1366000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":1366000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1366000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":1366000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":749000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":935000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":818000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":918000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":918000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":918000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":918000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":918000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":803000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":857000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":865000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":929000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":788000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":960000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1010000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":1010000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":1131000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":1218000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1266000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1059000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":908000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":908000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":908000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":908000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":908000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":832000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":904000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":988000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1082000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1082000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":921000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"LiabilitiesNoncurrent":{"label":"Liabilities, Noncurrent","description":"Amount of obligation due after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":2508000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":2508000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":2508000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2584000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3042000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3035000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3035000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":3035000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":3035000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":3035000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":3044000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3032000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3045000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3029000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3029000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":3029000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":3029000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":3029000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":3043000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2933000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2898000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2817000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2817000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":2817000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2809000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2777000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"}]}},"LiabilitiesOtherThanLongtermDebtNoncurrent":{"label":"Liabilities, Other than Long-term Debt, Noncurrent","description":"Aggregated carrying amounts of obligations as of the balance sheet date, excluding long-term debt, incurred as part of the normal operations that are expected to be paid after one year or beyond the normal operating cycle, if longer. Alternate captions include Total Deferred Credits and Other Liabilities.","units":{"USD":[{"end":"2013-12-31","val":2802000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2817000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2014-09-30","val":2771000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2850000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2852000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":2850000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2852000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":2852000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":2852000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":2852000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":2845000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2822000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2784000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":2784000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2825000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":2810000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2773000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2742000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2732000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2732000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":2732000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":2732000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":2732000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":2724000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2725000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2665000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2522000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":2522000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":2503000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2013-12-31","val":300000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":300000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2014-09-30","val":300000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":300000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":300000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":300000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":300000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":300000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":300000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":300000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":300000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":300000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":300000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":300000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":300000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":300000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":300000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":300000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":300000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":300000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":300000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":300000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":300000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2011-12-31","val":353000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":897000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":897000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":354000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":354000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":372000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":372000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":372000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":391000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":391000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":391000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":411000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":411000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":434000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":897000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":354000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":434000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":538000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":434000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":402000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":519000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":391000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":539000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":200000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":200000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":613000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":372000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":391000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":231000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":354000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":372000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":458000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2010-12-31","val":4614000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":4614000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":4614000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4417000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4261000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4262000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":4262000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":4262000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":4262000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":4262000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":5283000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5225000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5054000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4995000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":4995000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":4995000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":4995000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":4995000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":4864000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4805000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4701000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4641000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":4641000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":4641000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":4641000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":4641000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":4996000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4853000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4742000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":4680000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":4534000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4472000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4352000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":4352000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":4468000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":4468000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":4468000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":4468000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":4489000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":4489000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":4314000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":4348000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":4517000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":4454000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":4454000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":4454000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":4454000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":4454000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":4586000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":4522000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":4384000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":4319000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":4319000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":4540000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2009-01-01","end":"2009-12-31","val":688000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-106000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-241000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-241000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-241000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-141000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-140000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-140000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-284000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-284000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-286000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-286000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":-286000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-148000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-148000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-195000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-195000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-427000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-489000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-489000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-611000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-669000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-12-31","val":-1812000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2015-01-01","end":"2015-09-30","val":-190000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-112000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-69000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":110000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-12-31","val":-236000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":139000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"NetCashProvidedByUsedInFinancingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Financing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of financing activities, excluding 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":"2012-01-01","end":"2012-09-30","val":-427000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":-489000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-611000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-669000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-930000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-930000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-1812000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-1812000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-1812000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":360000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":360000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":217000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":217000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":112000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":112000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":112000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":142000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":142000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":142000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":142000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-118000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-118000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-67000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-67000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-190000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-190000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-310000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-112000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-112000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-424000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":7000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":7000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":11000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":11000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-170000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-170000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-69000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":110000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":35000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-139000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"}]}},"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":"2009-01-01","end":"2009-12-31","val":-677000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-320000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-905000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-1089000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1089000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-60000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-293000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-293000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-453000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-453000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":-617000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-617000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":-617000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":842000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":842000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":699000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":699000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":296000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":114000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":100000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-12-31","val":445000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2015-01-01","end":"2015-12-31","val":-809000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":-964000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-319000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-12-31","val":-776000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-364000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"NetCashProvidedByUsedInInvestingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Investing Activities, Continuing Operations","description":"Amount of cash inflow (outflow) of investing activities, excluding 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":"2012-01-01","end":"2012-09-30","val":296000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":114000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":100000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-122000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-122000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":445000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":445000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":445000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":-299000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-299000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-479000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-479000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-647000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-647000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-647000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-917000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-917000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-917000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-917000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-116000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-116000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-328000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-328000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-570000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-570000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-570000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-809000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-809000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-809000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-235000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-235000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-454000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-454000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-644000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-644000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-964000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":-317000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":-413000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-564000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"}]}},"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":"2009-01-01","end":"2009-12-31","val":562000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":264000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":491000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":789000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":789000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":85000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":411000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":411000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":642000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":642000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":925000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":925000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":925000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":81000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":81000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":333000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":333000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":610000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":980000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":980000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":57000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":267000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-12-31","val":928000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2015-01-01","end":"2015-09-30","val":687000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":895000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1110000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":104000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-12-31","val":909000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":180000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"NetCashProvidedByUsedInOperatingActivitiesContinuingOperations":{"label":"Net Cash Provided by (Used in) Operating Activities, Continuing Operations","description":"Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2012-01-01","end":"2012-09-30","val":610000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":980000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":57000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":267000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":604000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":604000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":928000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":928000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":928000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":80000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":80000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":243000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":243000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":543000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":543000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":543000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":858000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":858000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":858000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":858000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":157000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":157000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":341000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":341000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":687000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":687000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":807000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":895000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":895000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1207000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":169000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":169000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":430000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":430000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":820000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":820000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1110000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"},{"start":"2017-01-01","end":"2017-03-31","val":106000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-06-30","val":282000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":562000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"}]}},"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":"2009-01-01","end":"2009-12-31","val":208000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":90000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":60000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":182000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":92000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":200000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":200000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":24000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":24000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2011-01-01","end":"2011-06-30","val":103000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":103000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":79000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":79000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":79000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":1068000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":1068000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":965000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":965000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":965000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":1086000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1086000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":1086000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-10-01","end":"2011-12-31","val":18000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":36000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":114000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":114000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":78000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":78000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-04-01","end":"2012-06-30","val":78000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-04-01","end":"2012-06-30","val":78000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":252000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":252000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":138000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":138000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":138000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-07-01","end":"2012-09-30","val":138000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":279000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":279000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":279000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-10-01","end":"2012-12-31","val":27000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4"},{"start":"2012-10-01","end":"2012-12-31","val":27000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":19000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":19000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2013-01-01","end":"2013-03-31","val":19000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-03-31","val":19000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":92000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":92000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":73000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":73000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":73000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-04-01","end":"2013-06-30","val":73000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":218000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":218000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":126000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":126000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":126000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-07-01","end":"2013-09-30","val":126000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":269000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":269000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":269000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":269000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-10-01","end":"2013-12-31","val":51000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4"},{"start":"2013-10-01","end":"2013-12-31","val":51000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":35000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":35000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":35000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2014-01-01","end":"2014-03-31","val":35000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":35000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":92000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":92000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":57000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":57000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":57000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-04-01","end":"2014-06-30","val":57000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-04-01","end":"2014-06-30","val":57000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":211000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":211000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":211000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-07-01","end":"2014-09-30","val":119000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-10-01","end":"2014-12-31","val":41000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4"},{"start":"2014-10-01","end":"2014-12-31","val":41000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":41000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":31000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":31000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":31000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":31000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":31000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":100000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":224000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":224000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":224000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":124000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":261000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":37000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4"},{"start":"2015-10-01","end":"2015-12-31","val":37000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-10-01","end":"2015-12-31","val":37000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":17000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":17000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":17000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":17000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":88000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":88000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":71000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":71000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-04-01","end":"2016-06-30","val":71000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-04-01","end":"2016-06-30","val":71000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":224000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":224000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":136000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":136000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":136000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-07-01","end":"2016-09-30","val":136000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":276000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":276000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-10-01","end":"2016-12-31","val":52000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4"},{"start":"2016-10-01","end":"2016-12-31","val":52000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":18000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":18000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"start":"2017-01-01","end":"2017-03-31","val":18000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":93000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":75000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":75000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":223000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":130000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":130000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":433000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":210000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":52000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"NetRegulatoryAssets":{"label":"Net Regulatory Assets","description":"The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.","units":{"USD":[{"end":"2011-12-31","val":3285000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2915000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2915000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":2492000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2490000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":2092000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2092000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2092000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":1669000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1669000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":1669000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1256000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1263000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":285000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":285000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":178000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2009-01-01","end":"2009-12-31","val":-236000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-130000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":-64000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-197000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":-67000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-257000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-257000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":-62000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-125000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":-125000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":-63000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":-63000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":173000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":173000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":298000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":298000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":113000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":113000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":113000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":-66000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-66000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":-132000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":-132000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":-66000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":-66000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":-190000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":-190000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":-58000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":-58000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-247000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-247000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-247000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":-56000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-56000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":-106000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":-106000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":-50000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":-50000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-153000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-153000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":-47000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":-47000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":-199000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-199000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-199000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-199000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":-51000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":-51000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":-106000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":-106000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":-55000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":-55000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-159000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-159000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-159000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-213000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-213000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-213000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-213000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-53000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":-53000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":-103000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":-103000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":-50000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":-50000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":-152000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":-152000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":-152000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":-49000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":-49000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":-49000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-202000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-202000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-202000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-202000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":-52000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":-52000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":-100000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-100000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-48000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-48000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-150000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-150000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":-50000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":-50000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":-202000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":-202000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-57000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-49000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-96000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":-47000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-142000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":-46000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-187000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-52000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"NotesPayableRelatedPartiesClassifiedCurrent":{"label":"Notes Payable, Related Parties, Current","description":"The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2013-06-30","val":92000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":59000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"}]}},"NotesPayableRelatedPartiesNoncurrent":{"label":"Notes Payable, Related Parties, Noncurrent","description":"The amount for notes payable (written promise to pay), payable to related parties, which are due after one year (or one business cycle).","units":{"USD":[{"end":"2010-12-31","val":151000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":151000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":151000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":151000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":151000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":151000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":151000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":151000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":151000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":151000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":151000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":151000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":151000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":151000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":151000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":151000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":151000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":151000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":151000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":59000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"NotesReceivableRelatedParties":{"label":"Notes Receivable, Related Parties","description":"For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.","units":{"USD":[{"end":"2011-12-31","val":750000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2012-06-30","val":750000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":750000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":750000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":750000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":750000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"}]}},"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":750000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":750000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":750000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":750000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":750000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":750000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":750000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":750000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":750000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":750000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":750000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":750000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":750000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"OperatingExpenses":{"label":"Operating 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. Includes selling, general and administrative expense.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":1468000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":779000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":404000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1222000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":443000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":1638000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1638000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":388000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":809000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":809000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":421000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":421000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":1272000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":1272000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":463000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":463000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":1714000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1714000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":1714000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":424000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":424000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":909000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":909000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":485000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":485000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":1415000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":1415000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":506000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":506000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":1901000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1901000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":448000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":448000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":939000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":939000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":491000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":491000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1445000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":506000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1963000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":524000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1077000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":553000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":546000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":271000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":158000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":483000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":212000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":573000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":573000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":101000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":101000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2011-01-01","end":"2011-06-30","val":286000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":286000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":185000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":185000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":185000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":530000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":530000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":244000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":244000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":244000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":623000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":623000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":623000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-10-01","end":"2011-12-31","val":93000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":107000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":107000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2012-01-01","end":"2012-03-31","val":107000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":107000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":298000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":298000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":191000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":191000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-04-01","end":"2012-06-30","val":191000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-04-01","end":"2012-06-30","val":191000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":540000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":540000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":242000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":242000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":242000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-07-01","end":"2012-09-30","val":242000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":639000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":639000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":639000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-10-01","end":"2012-12-31","val":99000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4"},{"start":"2012-10-01","end":"2012-12-31","val":99000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":249000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":249000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":165000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":165000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":165000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-04-01","end":"2013-06-30","val":165000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":488000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":488000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":239000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":239000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":239000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-07-01","end":"2013-09-30","val":239000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":614000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":614000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":614000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":614000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-10-01","end":"2013-12-31","val":126000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4"},{"start":"2013-10-01","end":"2013-12-31","val":126000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":106000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":145000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":145000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":145000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-04-01","end":"2014-06-30","val":145000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-04-01","end":"2014-06-30","val":145000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":483000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":483000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":483000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-07-01","end":"2014-09-30","val":232000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":596000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":596000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":596000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":596000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-10-01","end":"2014-12-31","val":113000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4"},{"start":"2014-10-01","end":"2014-12-31","val":113000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":113000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":101000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":101000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":101000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":101000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":101000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":259000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":259000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":158000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":158000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":158000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-04-01","end":"2015-06-30","val":158000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":158000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":503000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":503000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":503000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":244000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":608000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":608000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":608000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":608000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":105000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4"},{"start":"2015-10-01","end":"2015-12-31","val":105000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-10-01","end":"2015-12-31","val":105000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":79000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":79000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":79000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":79000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":237000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":237000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":158000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":158000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-04-01","end":"2016-06-30","val":158000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-04-01","end":"2016-06-30","val":158000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":495000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":495000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":258000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":258000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":258000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-07-01","end":"2016-09-30","val":258000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":627000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":627000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-10-01","end":"2016-12-31","val":132000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4"},{"start":"2016-10-01","end":"2016-12-31","val":132000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":85000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":77000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"start":"2017-01-01","end":"2017-03-31","val":77000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":241000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":164000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":164000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":488000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":247000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":247000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":611000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":123000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":119000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"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":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":62000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":62000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":62000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":48000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":65000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":65000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":65000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":65000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":65000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":65000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":76000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":75000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":67000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":77000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":77000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":77000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":77000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":77000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":62000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":62000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":57000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":65000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":65000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":65000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":65000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":65000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":50000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":60000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":63000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":74000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":54000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":43000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":46000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":46000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":63000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":52000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":47000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":62000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":66000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":66000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":66000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":66000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":66000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":59000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":52000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":55000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":62000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":62000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":62000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":37000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":37000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":37000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":45000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":32000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":35000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":35000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":35000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":35000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":35000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":44000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":48000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":36000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":41000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":41000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":41000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":41000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":41000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":41000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":46000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":26000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":43000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":43000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":43000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":43000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":43000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":49000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":53000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":41000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":34000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":36000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":43000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":44000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":44000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":16000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":37000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":15000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":17000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":3000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":42000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":42000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":42000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":42000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":42000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":44000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":48000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":36000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":29000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":29000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":32000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax":{"label":"Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax","description":"Amount after tax and reclassification adjustments, 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":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax":{"label":"Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax","description":"Amount of tax expense (benefit), after reclassification adjustments, 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":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":1000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":2000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":-1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":-1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":0,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":-1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"OtherDepreciationAndAmortization":{"label":"Other Depreciation and Amortization","description":"Amount of expense charged against earnings to allocate the cost of tangible and intangible assets over their remaining economic lives, classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":22000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":22000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":32000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":32000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":32000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":32000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":24000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":24000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":24000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":24000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":34000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":34000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":41000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"OtherLiabilitiesCurrent":{"label":"Other Liabilities, Current","description":"Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":74000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":74000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":74000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":79000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":90000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":98000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":98000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":98000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":98000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":98000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":90000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":97000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":97000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":112000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":112000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":112000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":112000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":112000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":112000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":115000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":95000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":128000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":128000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":128000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":128000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":128000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":86000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":92000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":110000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":109000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":96000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":96000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":94000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":94000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":69000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":79000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":83000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":93000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":90000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":90000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":90000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":90000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":90000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":87000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":83000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":115000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":120000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":120000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":110000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":297000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":297000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":297000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":362000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":93000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":78000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":78000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":78000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":78000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":78000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":45000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":45000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":34000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":40000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":40000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":40000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":40000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":40000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":41000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":43000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":58000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":46000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":46000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":46000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":46000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":46000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":46000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":50000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":54000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":54000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":55000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":52000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":58000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":58000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":59000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":60000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":61000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":63000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":51000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":51000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":51000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":51000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":51000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":53000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":54000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":53000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":54000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":54000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":54000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"OtherLongTermDebtCurrent":{"label":"Other Long-term Debt, Current","description":"Amount of long-term debt classified as other, payable within one year or the operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":46000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":46000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":46000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":46000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":46000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":46000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":46000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":496000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":450000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":450000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":450000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":450000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":450000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":450000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":450000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"OtherLongTermDebtNoncurrent":{"label":"Other Long-term Debt, Noncurrent","description":"Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":2092000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":2092000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":2092000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2046000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2046000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2047000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2047000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":2047000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":2047000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":2047000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":1597000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1597000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1595000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1595000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1595000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":1595000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1595000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":1595000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":1595000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1595000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1595000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1595000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1595000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1595000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1595000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":1595000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2088000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2006000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2006000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":2006000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":2006000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2006000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2006000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":2006000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":2192000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2192000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":2192000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":2192000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2206000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2206000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":2192000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2289000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":2586000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2587000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2587000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":2587000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":2587000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":2587000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":2884000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2884000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2884000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2885000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":2885000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":3280000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":53000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":16000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":9000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":22000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":6000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":8000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":15000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":15000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":30000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":30000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":38000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":38000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":38000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":17000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":17000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":8000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":8000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":32000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":32000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":15000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":15000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":41000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":41000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":41000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":9000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":9000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":7000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":7000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":25000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":25000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":9000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":9000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":33000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":11000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":4000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":4000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":4000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":10000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":10000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":6000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":6000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":16000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":16000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":16000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":6000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":6000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":6000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":21000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":3000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":9000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":9000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":6000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":6000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":14000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":14000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":5000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":5000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":15000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":15000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-4000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":9000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":5000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":13000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":4000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":18000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":-3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2012-01-01","end":"2012-12-31","val":-3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":-1000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-1000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-1000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-2000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":-1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":5000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-4000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":-6000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"PaymentsForProceedsFromOtherInvestingActivities":{"label":"Payments for (Proceeds from) Other Investing Activities","description":"Amount of cash (inflow) outflow from investing activities classified as other.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-28000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":3000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":-8000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":-2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-2000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":11000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":11000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-5000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":-5000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":7000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":7000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":7000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":10000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":10000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":20000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":20000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":9000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":9000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":-4000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":-4000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":11000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":11000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":19000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":19000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":6000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":6000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":9000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":9000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":9000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":4000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":8000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":8000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":-13000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":-13000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":2000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":4000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":12000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":-2000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":2000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"PaymentsOfDebtExtinguishmentCosts":{"label":"Payment for Debt Extinguishment or Debt Prepayment Cost","description":"Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-09-30","val":69000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":69000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":69000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"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":"2009-01-01","end":"2009-12-31","val":10000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":-2000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":9000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":9000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":16000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":16000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":5000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":5000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":6000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":1000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":3000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":3000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":6000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":6000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":2000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":2000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":3000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":3000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":3000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":1685000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1685000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-09-30","val":1685000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-12-31","val":1685000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1685000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":1685000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":766000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":766000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":766000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":766000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":252000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":10000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":10000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":54000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":54000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":135000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":135000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":32000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":32000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":42000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":87000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":180000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":32000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-03-31","val":1685000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1685000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":1685000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"}]}},"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":"2009-01-01","end":"2009-12-31","val":442000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":242000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":385000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":566000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":566000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":143000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":298000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":298000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":449000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":449000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":606000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":606000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":606000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":143000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":143000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":278000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":278000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":429000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":429000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":609000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":609000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":609000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":137000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":137000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":325000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":325000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":508000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":508000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":753000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":753000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":753000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":753000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":196000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":196000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":371000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":371000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":588000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":588000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":588000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":804000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":804000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":804000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":804000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":225000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":225000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":442000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":442000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":677000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":677000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":677000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":929000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":929000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":929000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":929000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":227000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":227000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":444000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":444000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":655000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":655000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":862000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":862000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":210000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":210000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":414000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":603000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":875000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":230000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent":{"label":"Liability, Defined Benefit Plan","description":"Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.","units":{"USD":[{"end":"2011-12-31","val":219000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":236000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":236000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":197000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":197000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":232000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":232000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":232000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":173000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":173000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent":{"label":"Liability, Defined Benefit Plan, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":215000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":215000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":215000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":211000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":214000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":252000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":252000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":252000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":252000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":252000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":251000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":252000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":253000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":268000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":268000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":268000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":268000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":268000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":267000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":268000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":267000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":227000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":227000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":227000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":227000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":227000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":226000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":227000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":227000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":260000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":260000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":261000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":260000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":260000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":192000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":191000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":172000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":171000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":148000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":148000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":148000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":148000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":148000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":147000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":146000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":145000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":146000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":146000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":144000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"PensionExpense":{"label":"Pension Cost (Reversal of Cost)","description":"Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-31000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":27000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-27000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":30000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":30000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-30000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":25000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":25000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":25000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":25000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":26000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":26000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":26000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":26000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":35000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":35000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":35000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":35000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":44000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":44000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":41000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"PostemploymentBenefitsLiabilityCurrentAndNoncurrent":{"label":"Postemployment Benefits Liability","description":"The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement.","units":{"USD":[{"end":"2011-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":16000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"PostemploymentBenefitsPeriodExpense":{"label":"Postemployment Benefits, Period Expense","description":"Period expense related to postemployment benefits.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"PreferredStockParOrStatedValuePerShare":{"label":"Preferred Stock, Par or Stated Value Per Share","description":"Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.","units":{"USD/shares":[{"end":"2009-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":0.01,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":0.01,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":0.01,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":0.01,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":0.01,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":0.01,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"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":"2009-12-31","val":20000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":20000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-12-31","val":20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":20000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-12-31","val":20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":20000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":20000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":20000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":20000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":20000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":20000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":20000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-12-31","val":20000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015Q4I"},{"end":"2015-12-31","val":20000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"PreferredStockSharesOutstanding":{"label":"Preferred Stock, Shares Outstanding","description":"Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.","units":{"shares":[{"end":"2009-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"ProceedsFromContributionsFromParent":{"label":"Proceeds from Contributions from Parent","description":"The cash inflow from parent as a source of financing that is recorded as additional paid in capital.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-12-31","val":90000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":90000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":90000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":90000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":374000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":374000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":0,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"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":"2016-01-01","end":"2016-03-31","val":65000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2017-01-01","end":"2017-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1"}]}},"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":"2009-01-01","end":"2009-12-31","val":1165000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":1695000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":1695000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":1695000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":1695000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":2495000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":2495000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":2495000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2495000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":2495000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":600000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":600000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":600000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":600000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":600000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":600000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":600000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":600000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":600000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":600000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":600000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":200000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":200000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":300000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":300000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":600000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":600000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":600000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":600000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":298000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":298000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":298000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":298000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":298000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":398000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-12-31","val":200000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":200000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"}]}},"ProceedsFromPaymentsForOtherFinancingActivities":{"label":"Proceeds from (Payments for) Other Financing Activities","description":"Amount of cash inflow (outflow) from financing activities classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":0,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":0,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":0,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":0,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":1000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":1000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2018-01-01","end":"2018-03-31","val":1000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"ProceedsFromRepaymentsOfLinesOfCredit":{"label":"Proceeds from (Repayments of) Lines of Credit","description":"The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-251000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2011"}]}},"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":"2010-12-31","val":7586000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":7586000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":7742000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":7732000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":7827000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":7827000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":7827000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":7827000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-03-31","val":7927000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":7985000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":8052000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8204000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":8204000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":8204000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":8204000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":8204000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":8321000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":8425000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":8578000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":8741000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":8741000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":8741000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":8741000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":8741000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":8900000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":9044000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9203000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":9393000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":9570000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9752000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":9941000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":9941000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":10142000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":10316000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":10493000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":10649000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":10840000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":10840000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":10840000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":10840000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":10840000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":11011000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":11196000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":11256000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":11496000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":11496000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":11660000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2010-12-31","val":4781000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":4781000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":4781000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4876000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4937000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5043000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":5043000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":5043000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":5043000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":5043000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":5115000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5180000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5252000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5365000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":5365000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":5365000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":5365000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":5365000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":5441000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5544000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":5659000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5834000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5834000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":5834000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":5834000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":5834000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":5951000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6055000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6177000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":6343000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":6468000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":6604000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6750000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":6750000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":6933000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":7050000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":7173000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":7272000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":7397000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":7397000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":7397000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":7397000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":7397000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":7503000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":7615000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":7663000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":7863000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":7863000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":7966000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"ProvisionForDoubtfulAccounts":{"label":"Accounts Receivable, Credit Loss Expense (Reversal)","description":"Amount of expense (reversal of expense) for expected credit loss on accounts receivable.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":3000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-12-31","val":1000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"}]}},"PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity":{"label":"Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity","description":"The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest":{"label":"Allowance for Funds Used During Construction, Capitalized Interest","description":"Amount capitalized of allowance for funds used during construction.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":10000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"PublicUtilitiesInventory":{"label":"Public Utilities, Inventory","description":"The period end amount for a type of inventory held by the utility in a schedule of inventories.","units":{"USD":[{"end":"2013-12-31","val":105000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":126000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":118000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":129000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":125000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":125000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":133000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":129000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":137000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":138000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":134000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":134000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":134000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":134000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":134000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":130000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":135000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":137000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":119000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":119000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":115000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"RedemptionPremium":{"label":"Redemption Premium","description":"The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.","units":{"USD":[{"start":"2012-08-01","end":"2012-08-31","val":71000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"}]}},"RegulatoryAssets":{"label":"Regulatory Assets","description":"The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.","units":{"USD":[{"end":"2011-12-31","val":3726000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":2999000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2017-12-31","val":1570000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2018-03-31","val":1457000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"RegulatoryAssetsNoncurrent":{"label":"Regulatory Assets, Noncurrent","description":"Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.","units":{"USD":[{"end":"2010-12-31","val":2675000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":2675000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":2675000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2570000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3743000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3726000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3726000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":3726000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":3726000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":3726000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":3646000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3529000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3465000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":3388000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":3309000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3206000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3100000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3001000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":2999000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":2999000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":2999000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":2999000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":2926000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2820000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2679000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":2629000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":2556000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2467000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2355000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":2355000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":2211000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":2133000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":2020000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1870000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":1793000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1793000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":1793000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":1793000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":1793000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":1743000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":1689000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":1663000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1570000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1570000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1457000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"RegulatoryLiabilities":{"label":"Regulatory Liabilities","description":"The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.","units":{"USD":[{"end":"2011-12-31","val":441000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2016-12-31","val":537000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1285000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1285000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1279000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"RegulatoryLiabilityCurrent":{"label":"Regulatory Liability, Current","description":"The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.","units":{"USD":[{"end":"2016-12-31","val":7000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":22000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"RegulatoryLiabilityNoncurrent":{"label":"Regulatory Liability, Noncurrent","description":"The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.","units":{"USD":[{"end":"2010-12-31","val":417000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":417000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":417000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":432000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":430000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":441000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":441000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":441000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":441000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":441000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":460000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":465000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":473000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":473000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":495000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":497000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":515000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":509000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":529000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":540000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":545000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":537000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":555000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":560000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":567000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":567000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":542000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":527000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":520000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":520000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":530000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":530000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":530000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":530000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":530000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":511000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":494000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":428000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":1263000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1263000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1265000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"RelatedPartyTransactionRate":{"label":"Related Party Transaction, Rate","description":"Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.","units":{"pure":[{"start":"2012-01-01","end":"2012-03-31","val":0.0325,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":0.0325,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2012"}]}},"RelatedPartyTransactionSellingGeneralAndAdministrativeExpensesFromTransactionsWithRelatedParty":{"label":"Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party","description":"Amount of selling, general and administrative expenses resulting from transactions, excluding transactions that are eliminated in consolidated or combined financial statements, with related party.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":132000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-09-30","val":103000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":32000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":142000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":142000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":37000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":72000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-04-01","end":"2012-06-30","val":35000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":105000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":105000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":33000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":33000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":143000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":143000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":143000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":36000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":36000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":73000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":73000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":37000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":37000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":109000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":109000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":36000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":36000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":147000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":37000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":37000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":76000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":76000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":39000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":39000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":117000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":117000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":117000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":41000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":41000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":41000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":159000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":42000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":86000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":44000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":126000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":126000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":40000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":40000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"}]}},"RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided":{"label":"Remaining Amounts of Regulatory Assets for which No Return on Investment During Recovery Period is Provided","description":"Remaining balance of regulatory assets for which no return on investment during recovery is provided. In some cases, a regulator may permit an enterprise to include a cost that would be charged to expense by an unregulated enterprise as an allowable cost over a period of time by amortizing that cost for rate-making purposes, but the regulator does not include the unrecovered amount in the rate base.","units":{"USD":[{"end":"2011-12-31","val":16000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":14000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"RepaymentsOfLongTermDebt":{"label":"Repayments of Long-term Debt","description":"The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":208000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":106000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-01-01","end":"2010-09-30","val":241000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":141000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":141000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":141000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":283000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":283000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":283000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":283000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":283000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":151000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":151000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":197000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":197000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":1153000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":1153000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":1215000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1215000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":1215000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":612000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":612000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":670000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":670000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":838000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":838000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":897000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":897000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":897000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":897000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":231000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":231000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":373000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":373000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":477000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":477000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":477000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":537000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":537000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":537000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":537000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":137000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":137000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":198000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":198000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":310000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":310000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":310000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":372000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":372000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":372000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":372000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":145000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":145000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":408000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":408000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":527000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":527000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":590000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":590000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":155000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":155000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":219000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":347000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":411000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":165000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"RestrictedCashAndCashEquivalents":{"label":"Restricted Cash and Cash Equivalents","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage. 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":"2011-12-31","val":42000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2012-12-31","val":54000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":54000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":41000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2016-12-31","val":40000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2017-12-31","val":36000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4I"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2010-12-31","val":818000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":818000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":921000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1886000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1904000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1904000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":1904000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2012-03-31","val":255000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":333000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":471000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":498000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q4I"},{"end":"2012-12-31","val":498000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":498000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2013-03-31","val":517000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":590000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":716000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2014-03-31","val":36000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":93000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":212000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":270000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":270000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":270000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":270000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2015-03-31","val":301000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":370000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":494000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":494000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":279000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":279000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":279000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":279000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-03-31","val":296000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":357000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":449000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":420000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":420000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":420000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":420000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":420000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":406000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":471000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":556000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":673000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":673000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":693000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2017-01-01","end":"2017-03-31","val":644000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2018-01-01","end":"2018-03-31","val":761000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"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":"2009-01-01","end":"2009-12-31","val":2014000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1050000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":562000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1705000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":655000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":2211000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2211000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":489000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":489000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2011-01-01","end":"2011-06-30","val":1095000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":1095000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":606000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":606000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":606000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-01-01","end":"2011-09-30","val":1802000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":1802000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":707000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":707000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":707000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":2337000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2337000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":2337000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-10-01","end":"2011-12-31","val":535000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":531000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":531000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2012-01-01","end":"2012-03-31","val":531000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-03-31","val":531000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":1207000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":1207000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":676000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":676000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-04-01","end":"2012-06-30","val":676000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-04-01","end":"2012-06-30","val":676000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":1955000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":1955000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":748000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":748000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-07-01","end":"2012-09-30","val":748000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-07-01","end":"2012-09-30","val":748000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":2540000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2540000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":2540000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-10-01","end":"2012-12-31","val":585000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4"},{"start":"2012-10-01","end":"2012-12-31","val":585000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":532000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":532000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2013-01-01","end":"2013-03-31","val":532000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-01-01","end":"2013-03-31","val":532000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":1188000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":1188000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":656000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":656000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":656000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-04-01","end":"2013-06-30","val":656000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":1933000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":1933000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":745000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":745000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":745000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-07-01","end":"2013-09-30","val":745000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":2577000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":2577000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":2577000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":2577000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2013-10-01","end":"2013-12-31","val":644000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4"},{"start":"2013-10-01","end":"2013-12-31","val":644000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":630000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":630000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-03-31","val":630000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2014-01-01","end":"2014-03-31","val":630000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":630000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":1328000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":1328000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":698000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":698000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-04-01","end":"2014-06-30","val":698000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-04-01","end":"2014-06-30","val":698000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-04-01","end":"2014-06-30","val":698000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":2167000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":2167000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":2167000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-07-01","end":"2014-09-30","val":839000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":2846000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":2846000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":2846000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":2846000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-10-01","end":"2014-12-31","val":679000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4"},{"start":"2014-10-01","end":"2014-12-31","val":679000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-10-01","end":"2014-12-31","val":679000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":617000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":617000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":617000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-03-31","val":617000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-01-01","end":"2015-03-31","val":617000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":1322000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":1322000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":705000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":705000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-04-01","end":"2015-06-30","val":705000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-04-01","end":"2015-06-30","val":705000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-04-01","end":"2015-06-30","val":705000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":2149000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":2149000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":2149000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-07-01","end":"2015-09-30","val":827000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":2846000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":2846000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":2846000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":2846000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2015-10-01","end":"2015-12-31","val":697000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4"},{"start":"2015-10-01","end":"2015-12-31","val":697000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-10-01","end":"2015-12-31","val":697000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":656000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":656000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2016-01-01","end":"2016-03-31","val":656000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-01-01","end":"2016-03-31","val":656000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":1419000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":1419000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":763000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":763000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-04-01","end":"2016-06-30","val":763000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-04-01","end":"2016-06-30","val":763000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":2328000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":2328000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":909000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":909000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-07-01","end":"2016-09-30","val":909000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-07-01","end":"2016-09-30","val":909000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":3059000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":3059000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2016-10-01","end":"2016-12-31","val":731000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4"},{"start":"2016-10-01","end":"2016-12-31","val":731000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":638000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":638000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"start":"2017-01-01","end":"2017-03-31","val":638000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":1390000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":752000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q2"},{"start":"2017-04-01","end":"2017-06-30","val":752000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-01-01","end":"2017-09-30","val":2233000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":843000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q3"},{"start":"2017-07-01","end":"2017-09-30","val":843000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-01-01","end":"2017-12-31","val":2998000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2017-10-01","end":"2017-12-31","val":765000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017Q4"},{"start":"2018-01-01","end":"2018-03-31","val":755000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"SecuritizedRegulatoryTransitionAssetsNoncurrent":{"label":"Securitized Regulatory Transition Assets, Noncurrent","description":"Carrying value of the regulatory asset that represents capitalized stranded costs that have been securitized (financed with debt) and are expected to be recoverable through a transition charge after one year (or beyond the operating cycle if longer). A transition charge is a charge approved by a regulator that allows deregulated utilities to recover investments in certain assets, such as power plants, over a transition period leading into a deregulated market.","units":{"USD":[{"end":"2015-12-31","val":2373000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2016-12-31","val":1919000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":1919000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":1590000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":1590000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":1455000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"SpecialAssessmentBondNoncurrent":{"label":"Special Assessment Bond, Noncurrent","description":"The noncurrent portion of the carrying value as of the balance sheet date of a type of municipal bond typically used to fund a development project. Also called special assessment limited liability bond, special district bond, special purpose bond, special tax bond and community development obligation. Interest owed to lenders is paid by taxes levied on the community benefiting from the particular bond-funded project. For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project.","units":{"USD":[{"end":"2010-12-31","val":2522000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2522000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2011-06-30","val":2371000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2215000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"}]}},"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":"2009-12-31","val":1848000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009Q4I"},{"end":"2010-12-31","val":2048000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":2048000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":2048000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2048000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2011-06-30","val":2152000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3117000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":3134000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":1486000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1564000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1702000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1746000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1729000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":1729000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":1729000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":1729000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":1729000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":1749000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1822000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1948000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1250000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013Q4I"},{"end":"2013-12-31","val":1250000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2013-12-31","val":1250000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2013-12-31","val":1233000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":1233000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":1233000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":1233000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":1268000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1325000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1444000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014Q4I"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":1592000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":1623000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1692000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1816000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":1816000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015Q4I"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":1601000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":1618000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":1678000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":1772000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":2117000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":2117000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":2117000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":2117000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":2117000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":2103000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":2168000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":2252000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":2369000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":2369000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":2394000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2012-01-01","end":"2012-03-31","val":10000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":10000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-09-30","val":-25000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":25000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":-17000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":17000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":-26000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-26000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":-26000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-07-01","end":"2013-09-30","val":-5000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":-6000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"}]}},"TaxEffectOfExtraordinaryItem":{"label":"Tax Effect of Extraordinary Item, Gain (Loss) (Deprecated 2019-01-31)","description":"The tax effect of gains and losses from events or transactions meeting the criteria of unusual in nature and infrequent in occurrence, thereby meeting the criteria to be classified as an extraordinary item.","units":{"USD":[{"start":"2011-07-01","end":"2011-09-30","val":232000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":323000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"}]}},"TaxesExcludingIncomeAndExciseTaxes":{"label":"Taxes, Miscellaneous","description":"All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":208000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":104000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":52000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":157000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":53000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":207000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":207000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2011-01-01","end":"2011-03-31","val":53000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":104000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-01-01","end":"2011-06-30","val":104000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2011-04-01","end":"2011-06-30","val":51000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":51000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":158000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-01-01","end":"2011-09-30","val":158000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":54000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":54000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":210000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":210000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2011-01-01","end":"2011-12-31","val":210000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"start":"2012-01-01","end":"2012-03-31","val":52000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":52000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"start":"2012-01-01","end":"2012-06-30","val":106000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2012-01-01","end":"2012-06-30","val":106000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-04-01","end":"2012-06-30","val":54000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":54000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"start":"2012-01-01","end":"2012-09-30","val":160000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2012-01-01","end":"2012-09-30","val":160000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":54000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":54000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-12-31","val":214000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":214000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":214000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-03-31","val":55000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":55000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"start":"2013-01-01","end":"2013-06-30","val":112000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2013-01-01","end":"2013-06-30","val":112000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-04-01","end":"2013-06-30","val":57000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2013Q2"},{"start":"2013-04-01","end":"2013-06-30","val":57000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"start":"2013-01-01","end":"2013-09-30","val":169000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-01-01","end":"2013-09-30","val":169000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-07-01","end":"2013-09-30","val":57000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-07-01","end":"2013-09-30","val":57000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"start":"2013-01-01","end":"2013-12-31","val":225000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":225000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":225000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2013-01-01","end":"2013-12-31","val":225000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-03-31","val":58000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-03-31","val":58000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"start":"2014-01-01","end":"2014-06-30","val":114000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-01-01","end":"2014-06-30","val":114000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-04-01","end":"2014-06-30","val":56000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-04-01","end":"2014-06-30","val":56000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"start":"2014-01-01","end":"2014-09-30","val":170000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":170000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":170000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":56000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":56000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":56000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":224000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":224000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":224000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":224000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":56000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":56000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":111000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":111000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":55000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":55000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":167000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":167000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":167000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":56000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":56000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":56000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":222000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":222000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":222000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":222000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":57000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":57000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":114000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":114000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":57000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":57000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":173000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":173000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":59000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":59000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":231000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":231000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":60000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":60000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":118000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":58000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":177000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":59000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":235000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":61000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}},"TaxesPayableCurrent":{"label":"Taxes Payable, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other 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":"2010-12-31","val":92000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"end":"2010-12-31","val":92000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"end":"2010-12-31","val":92000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12","frame":"CY2010Q4I"},{"end":"2011-06-30","val":76000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":88000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3I"},{"end":"2011-12-31","val":101000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":101000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":101000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2011-12-31","val":101000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09"},{"end":"2011-12-31","val":101000000,"accn":"0000048732-12-000006","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-12"},{"end":"2012-03-31","val":62000000,"accn":"0000048732-12-000011","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-09","frame":"CY2012Q1I"},{"end":"2012-06-30","val":97000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":83000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":95000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":49000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":54000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":109000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":144000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":144000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":144000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":144000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":144000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":93000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":54000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":109000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":104000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":92000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":52000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":128000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":128000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":100000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":64000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":79000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":114000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":50000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":57000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":100000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":116000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":116000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":74000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"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":"2015-12-31","val":21000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":21000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":21000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":21000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2016-03-31","val":21000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":22000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":24000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":23000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016Q4I"}]}},"UnamortizedLossReacquiredDebtNoncurrent":{"label":"Unamortized Loss Reacquired Debt, Noncurrent","description":"Unamortized Loss on Reacquired Debt is the loss incurred upon reacquisition or refinancing of debt, is treated as a deferred charge and amortized over the life of the new debt issued.","units":{"USD":[{"end":"2015-12-31","val":93000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2016-12-31","val":84000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":84000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-12-31","val":75000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":75000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":74000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"UnbilledReceivablesCurrent":{"label":"Unbilled Receivables, Current","description":"Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":72000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":72000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2012-09-30","val":90000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":80000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012Q4I"},{"end":"2012-12-31","val":80000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08"},{"end":"2012-12-31","val":80000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08"},{"end":"2012-12-31","val":80000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08"},{"end":"2012-12-31","val":80000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-03-31","val":70000000,"accn":"0000048732-13-000010","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-08","frame":"CY2013Q1I"},{"end":"2013-06-30","val":97000000,"accn":"0000048732-13-000015","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-08","frame":"CY2013Q2I"},{"end":"2013-09-30","val":92000000,"accn":"0000048732-13-000019","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-08","frame":"CY2013Q3I"},{"end":"2013-12-31","val":87000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":87000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"end":"2013-12-31","val":87000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08"},{"end":"2013-12-31","val":87000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08"},{"end":"2013-12-31","val":87000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-03-31","val":74000000,"accn":"0000048732-14-000011","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-08","frame":"CY2014Q1I"},{"end":"2014-06-30","val":104000000,"accn":"0000048732-14-000016","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-08","frame":"CY2014Q2I"},{"end":"2014-09-30","val":100000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2014Q3I"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2014Q4I"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"end":"2014-12-31","val":96000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"end":"2015-03-31","val":83000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2015Q1I"},{"end":"2015-06-30","val":113000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2015Q2I"},{"end":"2015-09-30","val":112000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2015Q3I"},{"end":"2015-09-30","val":112000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015Q4I"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"end":"2015-12-31","val":96000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"end":"2016-03-31","val":85000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2016Q1I"},{"end":"2016-06-30","val":113000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2016Q2I"},{"end":"2016-09-30","val":117000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2016Q3I"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016Q4I"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"end":"2016-12-31","val":106000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"end":"2017-03-31","val":90000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2017Q1I"},{"end":"2017-06-30","val":115000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2I"},{"end":"2017-09-30","val":129000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3I"},{"end":"2017-12-31","val":120000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q4I"},{"end":"2017-12-31","val":120000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22"},{"end":"2018-03-31","val":96000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1I"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2009-12-31","val":175000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2009Q4I"},{"end":"2010-12-31","val":232000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2010Q4I"},{"end":"2010-12-31","val":232000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":44000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2011Q4I"},{"end":"2011-12-31","val":44000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2011-12-31","val":44000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":44000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":44000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2012-06-30","val":12000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013Q4I"},{"end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014Q4I"}]}},"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":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":192000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":192000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":46000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":46000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2012-01-01","end":"2012-12-31","val":46000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"}]}},"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":"2010-01-01","end":"2010-12-31","val":50000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"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":"2010-01-01","end":"2010-12-31","val":10000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"UnrecognizedTaxBenefitsIncreasesResultingFromSettlementsWithTaxingAuthorities":{"label":"Unrecognized Tax Benefits, Increase Resulting from Settlements with Taxing Authorities","description":"Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2014"}]}},"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":"2011-12-31","val":5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2011Q4I"},{"end":"2011-12-31","val":5000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":5000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2012-06-30","val":-1000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"},{"end":"2013-12-31","val":6000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"}]}},"UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense":{"label":"Unrecognized Tax Benefits, Interest on Income Taxes Expense","description":"Amount of interest expense for an underpayment of income taxes.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-12000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-12000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2012-01-01","end":"2012-12-31","val":-5000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-5000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013"}]}},"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":14000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13","frame":"CY2010Q4I"},{"end":"2011-12-31","val":18000000,"accn":"0000048732-14-000005","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2011Q4I"},{"end":"2011-12-31","val":18000000,"accn":"0000048732-13-000004","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-13"},{"end":"2011-12-31","val":18000000,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"end":"2011-12-31","val":18000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06"},{"end":"2012-06-30","val":12000000,"accn":"0000048732-12-000015","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0,"accn":"0000048732-12-000019","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3I"}]}},"UtilitiesOperatingExpenseMaintenanceAndOperations":{"label":"Utilities Operating Expense, Maintenance and Operations","description":"Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":398000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2010-04-01","end":"2010-06-30","val":207000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":615000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2010-07-01","end":"2010-09-30","val":217000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-06-30","val":431000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04"},{"start":"2011-04-01","end":"2011-06-30","val":221000000,"accn":"0001130310-11-000048","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-04","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":661000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07"},{"start":"2011-07-01","end":"2011-09-30","val":230000000,"accn":"0001130310-11-000065","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-07","frame":"CY2011Q3"}]}},"UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses":{"label":"Utilities Operating Expense, Maintenance, Operations, and Other Costs and Expenses","description":"The amount of operating expenses for the period that are associated with the utility's normal revenue producing operation; including selling, general, and administrative expenses, costs incurred for routine plant repairs and maintenance, and operations.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":958000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09","frame":"CY2012"},{"start":"2013-01-01","end":"2013-09-30","val":746000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2013-07-01","end":"2013-09-30","val":259000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1053000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12","frame":"CY2013"},{"start":"2013-01-01","end":"2013-12-31","val":1053000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2013-01-01","end":"2013-12-31","val":1053000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2014-01-01","end":"2014-03-31","val":290000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":591000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2014-04-01","end":"2014-06-30","val":301000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":912000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-09-30","val":912000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-01-01","end":"2014-09-30","val":912000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-07-01","end":"2014-09-30","val":321000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12","frame":"CY2014Q3"},{"start":"2014-07-01","end":"2014-09-30","val":321000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2014-07-01","end":"2014-09-30","val":321000000,"accn":"0000048732-14-000020","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-07"},{"start":"2014-01-01","end":"2014-12-31","val":1258000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2014"},{"start":"2014-01-01","end":"2014-12-31","val":1258000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2014-01-01","end":"2014-12-31","val":1258000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2014-01-01","end":"2014-12-31","val":1258000000,"accn":"0000048732-15-000005","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-09"},{"start":"2015-01-01","end":"2015-03-31","val":309000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-03-31","val":309000000,"accn":"0000048732-15-000010","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-12"},{"start":"2015-01-01","end":"2015-06-30","val":627000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2015-01-01","end":"2015-06-30","val":627000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-04-01","end":"2015-06-30","val":318000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05","frame":"CY2015Q2"},{"start":"2015-04-01","end":"2015-06-30","val":318000000,"accn":"0000048732-15-000013","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-12"},{"start":"2015-01-01","end":"2015-09-30","val":953000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2015-01-01","end":"2015-09-30","val":953000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-09-30","val":953000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":326000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04","frame":"CY2015Q3"},{"start":"2015-07-01","end":"2015-09-30","val":326000000,"accn":"0000048732-16-000030","fy":2015,"fp":"Q3","form":"10-Q/A","filed":"2016-05-12"},{"start":"2015-07-01","end":"2015-09-30","val":326000000,"accn":"0000048732-15-000017","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-09"},{"start":"2015-01-01","end":"2015-12-31","val":1311000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2015"},{"start":"2015-01-01","end":"2015-12-31","val":1311000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2015-01-01","end":"2015-12-31","val":1311000000,"accn":"0000048732-16-000031","fy":2015,"fp":"FY","form":"10-K/A","filed":"2016-05-12"},{"start":"2015-01-01","end":"2015-12-31","val":1311000000,"accn":"0000048732-16-000021","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-26"},{"start":"2016-01-01","end":"2016-03-31","val":331000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-03-31","val":331000000,"accn":"0000048732-16-000032","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-12"},{"start":"2016-01-01","end":"2016-06-30","val":662000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2016-01-01","end":"2016-06-30","val":662000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-04-01","end":"2016-06-30","val":331000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2016Q2"},{"start":"2016-04-01","end":"2016-06-30","val":331000000,"accn":"0000048732-16-000038","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-05"},{"start":"2016-01-01","end":"2016-09-30","val":1001000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2016-01-01","end":"2016-09-30","val":1001000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-07-01","end":"2016-09-30","val":339000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2016Q3"},{"start":"2016-07-01","end":"2016-09-30","val":339000000,"accn":"0000048732-16-000043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-04"},{"start":"2016-01-01","end":"2016-12-31","val":1363000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2016"},{"start":"2016-01-01","end":"2016-12-31","val":1363000000,"accn":"0000048732-17-000008","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28"},{"start":"2017-01-01","end":"2017-03-31","val":341000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2017Q1"},{"start":"2017-01-01","end":"2017-03-31","val":349000000,"accn":"0000048732-17-000012","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-05"},{"start":"2017-01-01","end":"2017-06-30","val":699000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03"},{"start":"2017-04-01","end":"2017-06-30","val":350000000,"accn":"0000048732-17-000016","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-03","frame":"CY2017Q2"},{"start":"2017-01-01","end":"2017-09-30","val":1043000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03"},{"start":"2017-07-01","end":"2017-09-30","val":344000000,"accn":"0000048732-17-000019","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-03","frame":"CY2017Q3"},{"start":"2017-01-01","end":"2017-12-31","val":1428000000,"accn":"0000048732-18-000005","fy":2017,"fp":"FY","form":"10-K","filed":"2018-02-22","frame":"CY2017"},{"start":"2018-01-01","end":"2018-03-31","val":342000000,"accn":"0000048732-18-000009","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-04","frame":"CY2018Q1"}]}}},"ffd":{"NetFeeAmt":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":96606.2,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}},"NrrtvMaxAggtOfferingPric":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":699538000,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}},"TtlFeeAmt":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":96606.2,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}},"TtlOfferingAmt":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":699538000,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}},"TtlOffsetAmt":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":0,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}},"TtlPrevslyPdAmt":{"label":"","description":"","units":{"USD":[{"end":"2026-09-21","val":0,"accn":"0001104659-26-109623","fy":null,"fp":null,"form":"424B2","filed":"2026-09-22","frame":"CY2026Q3I"}]}}}}}