{"cik":1135971,"entityName":"PEPCO HOLDINGS INC","facts":{"dei":{"EntityCommonStockSharesOutstanding":{"label":"Entity Common Stock, Shares Outstanding","description":"Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","units":{"shares":[{"end":"2009-09-30","val":221592782,"accn":"0001193125-09-217423","fy":2009,"fp":"Q3","form":"10-Q","filed":"2009-10-29","frame":"CY2009Q3I"},{"end":"2010-02-01","val":222357258,"accn":"0001193125-10-041024","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009Q4I"},{"end":"2010-03-31","val":223210345,"accn":"0001193125-10-111190","fy":2010,"fp":"Q1","form":"10-Q","filed":"2010-05-07","frame":"CY2010Q1I"},{"end":"2010-06-30","val":223889619,"accn":"0001193125-10-179617","fy":2010,"fp":"Q2","form":"10-Q","filed":"2010-08-06","frame":"CY2010Q2I"},{"end":"2010-09-30","val":224500318,"accn":"0001193125-10-240191","fy":2010,"fp":"Q3","form":"10-Q","filed":"2010-10-29","frame":"CY2010Q3I"},{"end":"2012-07-25","val":228885730,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-10-25","val":229471971,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2013-02-15","val":230073469,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-04-24","val":248581877,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-07-25","val":249142538,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-10-24","val":249756730,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2014-02-14","val":250517109,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-04-25","val":251025051,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-07-21","val":251524386,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-10-20","val":251907108,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2015-02-13","val":252815448,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-04-20","val":253072175,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-07-17","val":253466203,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-10-16","val":253617191,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2016-02-05","val":254340724,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"EntityPublicFloat":{"label":"Entity Public Float","description":"The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.","units":{"USD":[{"end":"2009-06-30","val":3000000000,"accn":"0001193125-10-041024","fy":2009,"fp":"FY","form":"10-K","filed":"2010-02-26","frame":"CY2009Q2I"},{"end":"2010-06-30","val":3500000000,"accn":"0001193125-11-046310","fy":2010,"fp":"FY","form":"10-K","filed":"2011-02-25","frame":"CY2010Q2I"},{"end":"2011-06-30","val":4432800000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2I"},{"end":"2012-06-29","val":4464800000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012Q2I"},{"end":"2013-06-28","val":5010300000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q2I"},{"end":"2014-06-30","val":6893800000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q2I"},{"end":"2015-06-30","val":6802600000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2I"}]}}},"us-gaap":{"AccountsPayableAndAccruedLiabilitiesCurrent":{"label":"Accounts Payable and Accrued Liabilities, Current","description":"Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.","units":{"USD":[{"end":"2010-12-31","val":587000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":587000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":587000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":553000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":534000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":485000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":488000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":549000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":549000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":549000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":549000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":549000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":522000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":526000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":548000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":553000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":553000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":554000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":554000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":574000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":574000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":486000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":523000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":492000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"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":"2012-12-31","val":196000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":215000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":215000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":215000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":215000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":215000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":187000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":170000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":192000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":174000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":174000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":174000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":174000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":174000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":206000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":172000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":205000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":175000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccountsReceivableNetCurrent":{"label":"Accounts Receivable, after Allowance for Credit Loss, Current","description":"Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.","units":{"USD":[{"end":"2010-12-31","val":1027000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":958000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":989000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":929000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":929000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":929000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":929000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":929000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":835000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":835000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":843000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":840000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":940000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":837000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":837000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":804000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":804000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":804000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":804000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":804000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":838000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":803000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":844000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":835000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":835000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":835000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":835000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":835000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":872000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":822000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":812000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":782000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":782000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":782000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":782000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":782000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":978000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":956000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":947000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":839000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccrualForEnvironmentalLossContingencies":{"label":"Accrual for Environmental Loss Contingencies","description":"Total costs accrued as of the balance sheet date for environmental loss contingencies.","units":{"USD":[{"end":"2010-12-31","val":34000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":35000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":35000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":35000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":30000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":30000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":30000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":34000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":34000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":34000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":29000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":28000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":28000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":30000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":30000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":30000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":30000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":30000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":30000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":29000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":28000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":28000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":28000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":29000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":33000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccrualForEnvironmentalLossContingenciesPayments":{"label":"Accrual for Environmental Loss Contingencies, Payments (Deprecated 2016-01-31)","description":"The aggregate amount disbursed during the reporting period to settle environmental loss contingencies.","units":{"USD":[{"start":"2010-12-31","end":"2011-12-31","val":-2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-12-03","end":"2013-12-04","val":3000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"AccrualForEnvironmentalLossContingenciesProvisionForNewLosses":{"label":"Accrual for Environmental Loss Contingencies, Provision for New Losses (Deprecated 2016-01-31)","description":"The amount added to the accrual for newly incurred environmental loss contingencies. These additions include remediation expense and interest accretion. These additions do not relate to changes in the environmental accrual related to a business acquisition or divestiture, to currency movements, or revisions in previously existing estimates.","units":{"USD":[{"start":"2010-12-31","end":"2011-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":5000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":5000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"AccruedEnvironmentalLossContingenciesCurrent":{"label":"Accrued Environmental Loss Contingencies, Current","description":"Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.","units":{"USD":[{"end":"2011-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2015-09-30","val":5000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccruedEnvironmentalLossContingenciesNoncurrent":{"label":"Accrued Environmental Loss Contingencies, Noncurrent","description":"Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.","units":{"USD":[{"end":"2015-09-30","val":24000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":29000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccruedIncomeTaxesCurrent":{"label":"Accrued Income Taxes, Current","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.","units":{"USD":[{"end":"2014-12-31","val":41000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":41000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-09-30","val":40000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":51000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccruedIncomeTaxesNoncurrent":{"label":"Accrued Income Taxes, Noncurrent","description":"Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.","units":{"USD":[{"end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"AccruedLiabilitiesCurrent":{"label":"Accrued Liabilities, Current","description":"Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).","units":{"USD":[{"end":"2012-12-31","val":357000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":301000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":301000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":301000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":301000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":301000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":319000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":327000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":321000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":313000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":313000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":313000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":313000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":313000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":302000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":353000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":300000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":322000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccumulatedDeferredInvestmentTaxCredit":{"label":"Accumulated Deferred Investment Tax Credit","description":"The noncurrent portion of the reserve for accumulated deferred investment tax credits as of the balance sheet date. This is the remaining investment credit, which will reduce the cost of services collected from ratepayers by a ratable portion over the investment's regulatory life.","units":{"USD":[{"end":"2010-12-31","val":26000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":26000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":26000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":23000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":23000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":22000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":22000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":21000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":22000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":20000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":20000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":19000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":18000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":17000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":17000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":17000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":17000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":17000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":17000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":17000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":16000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":16000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":16000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":16000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":16000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":16000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":15000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":15000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":14000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":4447000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":4447000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4447000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4553000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4613000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4635000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4681000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4713000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4749000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4779000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4796000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4830000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4802000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4863000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4863000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4863000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4863000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4863000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4897000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4938000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4988000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4959000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4959000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4959000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4959000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4959000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4889000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4922000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4952000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4914000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax","description":"Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.","units":{"USD":[{"end":"2010-06-30","val":114000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2I"},{"end":"2010-09-30","val":-113000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":-89000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-03-31","val":-73000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1I"},{"end":"2011-06-30","val":60000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":60000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-50000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":50000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3I"},{"end":"2011-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":-31000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2012-03-31","val":21000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1I"},{"end":"2012-06-30","val":25000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-06-30","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":21000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-09-30","val":10000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":16000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":-10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":-10000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":9000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-03-31","val":-9000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1I"},{"end":"2014-06-30","val":9000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":9000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-09-30","val":9000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3I"},{"end":"2015-03-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":9000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":8000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"}]}},"AccumulatedOtherComprehensiveIncomeLossNetOfTax":{"label":"Accumulated Other Comprehensive Income (Loss), Net of Tax","description":"Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.","units":{"USD":[{"end":"2008-12-31","val":-155000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2008Q4I"},{"end":"2009-12-31","val":-138000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":-138000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2009Q4I"},{"end":"2010-12-31","val":-106000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":-106000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":-106000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":-106000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2010Q4I"},{"end":"2011-06-30","val":-80000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":-71000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":-63000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":-55000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2012-03-31","val":-55000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-03-31","val":-55000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1I"},{"end":"2012-06-30","val":-51000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-06-30","val":-51000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-06-30","val":-36000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":-47000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":-48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":-42000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":-42000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":-41000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":-41000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-06-30","val":-41000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q2I"},{"end":"2013-09-30","val":-40000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":-40000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3I"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2013-12-31","val":-34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-03-31","val":-33000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":-33000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-03-31","val":-33000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-03-31","val":-33000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q1I"},{"end":"2014-06-30","val":-35000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":-35000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-06-30","val":-35000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-06-30","val":-35000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q2I"},{"end":"2014-09-30","val":-33000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-09-30","val":-33000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3I"},{"end":"2014-12-31","val":-46000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":-46000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":-46000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":-46000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":-46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":-45000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2015-03-31","val":-45000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q1I"},{"end":"2015-06-30","val":-42000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2015-06-30","val":-42000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2I"},{"end":"2015-09-30","val":-41000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":-36000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AdditionalCollateralAggregateFairValue":{"label":"Additional Collateral, Aggregate Fair Value","description":"The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.","units":{"USD":[{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":123000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":123000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":123000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":123000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2012-03-31","val":111000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":72000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":56000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":24000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"AdditionalPaidInCapitalCommonStock":{"label":"Additional Paid in Capital, Common Stock","description":"Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.","units":{"USD":[{"end":"2010-12-31","val":3275000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":3275000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3275000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3299000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3312000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3325000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3340000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3354000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3369000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3383000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3706000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3720000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3734000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3751000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":3751000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":3751000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":3751000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":3751000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3764000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3780000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3794000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3800000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3800000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":3800000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":3800000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":3800000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3809000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3823000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3830000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3829000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther":{"label":"Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities, Other (Deprecated 2011-01-31)","description":"Transactions that do not result in cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect cash flow method. This element is used when there is not a more specific and appropriate element.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue":{"label":"APIC, Share-based Payment Arrangement, Increase for Cost Recognition","description":"Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-6000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":-6000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":5000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"}]}},"AllocatedShareBasedCompensationExpense":{"label":"Share-based Payment Arrangement, Expense","description":"Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"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":"2010-12-31","val":51000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":52000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":54000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":43000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":41000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":42000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":39000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":37000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":41000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":43000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":44000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":50000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":56000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":48000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":58000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":56000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AmortizationOfDeferredHedgeGains":{"label":"Amortization of Deferred Hedge Gains","description":"The amount of expense charged against earnings by an Entity to record deferred gains and losses on hedge instruments. Examples include gain on economic hedges, amortization of gain on designated fair value hedge and so forth.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":18000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":18000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-18000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries":{"label":"Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries","description":"Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.","units":{"USD":[{"end":"2014-12-31","val":2547000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2633000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount":{"label":"Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount","description":"Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.","units":{"shares":[{"start":"2008-12-31","end":"2009-12-31","val":334966,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":280266,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":280266,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":280266,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":280266,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":280266,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":280266,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":280266,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":280266,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":133066,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":119766,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":119766,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":14900,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":14900,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":119766,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":119766,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":119766,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":14900,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":14900,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":14900,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":14900,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":14900,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":3000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":3000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-09-30","val":0,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"AssetImpairmentCharges":{"label":"Asset Impairment Charges","description":"Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2012-01-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":53000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":53000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":53000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":53000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":81000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":81000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"}]}},"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":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"}]}},"AssetRetirementObligationCurrent":{"label":"Asset Retirement Obligation, Current","description":"Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.","units":{"USD":[{"end":"2007-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2007Q4I"},{"end":"2007-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2008-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2008Q4I"},{"end":"2008-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2009Q4I"},{"end":"2009-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"}]}},"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":14480000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":14480000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":14480000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-03-31","val":14220000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1I"},{"end":"2011-06-30","val":14238000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":14233000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2I"},{"end":"2011-09-30","val":14570000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":14568000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3I"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":15001000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":15001000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":15188000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":15421000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":15622000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":15776000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":15788000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":14519000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-03-31","val":15655000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":14989000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":14808000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14912000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":14910000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3I"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":14778000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-03-31","val":15004000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":15004000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15070000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":15070000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2I"},{"end":"2014-09-30","val":15298000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-09-30","val":15298000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":15589000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":16027000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":16132000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":16557000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":16326000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":1757000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1757000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1757000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1498000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1618000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1439000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1439000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1439000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1439000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1439000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1529000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1529000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1348000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1289000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1487000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1249000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1261000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":1267000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1267000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1267000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1267000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1267000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1521000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1396000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1465000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1398000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":1398000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":1398000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":1398000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":1398000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1464000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1316000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1369000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1084000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1084000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":1084000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":1084000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":1034000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1411000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1291000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1546000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1202000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"AssetsFairValueDisclosure":{"label":"Assets, Fair Value Disclosure","description":"Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.","units":{"USD":[{"end":"2012-12-31","val":112000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q4I"},{"end":"2012-12-31","val":112000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":119000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":152000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"AssetsHeldForSaleCurrent":{"label":"Assets Held-for-sale, Current (Deprecated 2014-01-31)","description":"Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year.","units":{"USD":[{"end":"2010-12-31","val":111000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":111000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":111000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":126000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":126000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-06-30","val":14000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"AssetsHeldForSaleLongLived":{"label":"Assets Held-for-sale, Long Lived (Deprecated 2014-01-31)","description":"Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year.","units":{"USD":[{"end":"2011-12-31","val":1350000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"AssetsHeldForSaleOtherNoncurrent":{"label":"Assets Held-for-sale, Other, Noncurrent (Deprecated 2014-01-31)","description":"Other assets that are held for sale apart from normal operations, not otherwise included elsewhere in the taxonomy and which are anticipated to be sold in less than one year, but by their nature which are not considered current (originally classified based on not being realized or converted to working capital within one year of the date of the statement of financial position or operating cycle, if longer).","units":{"USD":[{"end":"2010-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"AssetsHeldInTrust":{"label":"Assets Held-in-trust","description":"The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.","units":{"USD":[{"end":"2010-12-31","val":1258000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1258000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1258000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":1161000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1263000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":1362000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1375000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":869000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":167000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"}]}},"AssetsHeldInTrustNoncurrent":{"label":"Assets Held-in-trust, Noncurrent","description":"The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.","units":{"USD":[{"end":"2010-12-31","val":1423000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1423000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1423000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":1329000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1336000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":1362000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1375000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":869000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":167000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"}]}},"CapitalLeasedAssetsGross":{"label":"Capital Leased Assets, Gross","description":"Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.","units":{"USD":[{"end":"2010-12-31","val":155000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":155000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":155000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":155000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":155000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":155000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":155000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":155000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":155000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":155000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":155000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":152000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":152000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":152000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeaseObligationsCurrent":{"label":"Capital Lease Obligations, Current","description":"Amount of capital lease obligation due within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":12000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":9000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":9000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":11000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":11000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeaseObligationsNoncurrent":{"label":"Capital Lease Obligations, Noncurrent","description":"Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":86000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":86000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":86000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":82000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":82000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":78000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":78000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":70000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":70000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":70000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":69000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":65000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":65000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":60000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":60000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":60000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":60000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":60000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":60000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":55000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":55000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":50000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":45000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":45000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":39000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesBalanceSheetAssetsByMajorClassNet":{"label":"Capital Leases, Balance Sheet, Assets by Major Class, Net","description":"The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.","units":{"USD":[{"end":"2010-12-31","val":94000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":86000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":86000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":86000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":86000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":78000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":78000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":78000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":78000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":69000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":69000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":60000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":60000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":50000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsDueCurrent":{"label":"Capital Leases, Future Minimum Payments Due, Next Twelve Months","description":"Amount of minimum lease payments for capital leases 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":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInFourYears":{"label":"Capital Leases, Future Minimum Payments Due in Four Years","description":"Amount of minimum lease payments for capital leases 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":"2015-12-31","val":16000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInThreeYears":{"label":"Capital Leases, Future Minimum Payments Due in Three Years","description":"Amount of minimum lease payments for capital leases 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":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsDueInTwoYears":{"label":"Capital Leases, Future Minimum Payments Due in Two Years","description":"Amount of minimum lease payments for capital leases 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":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsNetMinimumPayments":{"label":"Capital Leases, Future Minimum Payments, Net Minimum Payments (Deprecated 2012-01-31)","description":"The total contractually required rental payments on capitalized leases net of deductions for: (i) executory costs, including any profit thereon, included in the minimum lease payments and (ii) the amount of imputed interest necessary to reduce the net minimum lease payments to present value.","units":{"USD":[{"end":"2011-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsNetMinimumPayments1":{"label":"Capital Leases, Future Minimum Payments, Net Minimum Payments","description":"Amount of minimum lease payments for capital leases net of executory costs, which include amounts paid by the lessee to the lessor for insurance, maintenance and taxes.","units":{"USD":[{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments":{"label":"Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments","description":"Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.","units":{"USD":[{"end":"1994-12-31","val":152000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"1994-12-31","val":152000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"1994-12-31","val":152000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY1994Q4I"},{"end":"2011-12-31","val":152000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2013-12-31","val":152000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":152000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":152000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableCurrent":{"label":"Capital Leases, Future Minimum Payments Receivable, Next Twelve Months","description":"Amount of minimum lease payments to be received by the lessor for capital leases 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":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableDueThereafter":{"label":"Capital Leases, Future Minimum Payments, Receivable Thereafter","description":"Amount of minimum lease payments to be received by the lessor for capital leases after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":1349000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1237000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableInFiveYears":{"label":"Capital Leases, Future Minimum Payments, Receivable in Five Years","description":"Amount of minimum lease payments to be received by the lessor for capital leases 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":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableInFourYears":{"label":"Capital Leases, Future Minimum Payments, Receivable in Four Years","description":"Amount of minimum lease payments to be received by the lessor for capital leases 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":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears":{"label":"Capital Leases, Future Minimum Payments, Receivable in Three Years","description":"Amount of minimum lease payments to be received by the lessor for capital leases 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":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears":{"label":"Capital Leases, Future Minimum Payments, Receivable in Two Years","description":"Amount of minimum lease payments to be received by the lessor for capital leases 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":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation":{"label":"Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation","description":"The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.","units":{"USD":[{"end":"2010-12-31","val":61000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":69000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":69000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":69000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":69000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":77000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":77000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":77000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":77000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":86000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":86000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":92000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":92000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":102000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CapitalLeasesNetInvestmentInDirectFinancingAndSalesTypeLeases":{"label":"Capital Leases, Net Investment in Direct Financing and Sales Type Leases","description":"The lessor's asset under sales type and direct financing leases. The net investment in direct financing and sales-type leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs on direct financing leases; less: (i) estimated executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.","units":{"USD":[{"end":"2010-12-31","val":1400000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1400000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1400000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":1300000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1300000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1300000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":1400000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1400000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1200000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1200000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1200000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome":{"label":"Capital Leases, Net Investment in Direct Financing Leases, Deferred Income","description":"The remaining (unamortized) difference between the gross investment in a direct financing lease and the cost or carrying amount, if different, of the leased property as of the balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":842000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":842000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":842000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":790000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":784000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":771000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":758000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":745000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":626000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":615000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":615000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived":{"label":"Capital Leases, Net Investment in Direct Financing Leases, Minimum Payments to be Received","description":"Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.","units":{"USD":[{"end":"2010-12-31","val":2265000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":2265000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2265000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":2119000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2120000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":2120000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":2120000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2120000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1852000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1852000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1852000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CapitalLeasesNetInvestmentInDirectFinancingLeasesUnguaranteedResidualValuesOfLeasedProperty":{"label":"Capital Leases, Net Investment in Direct Financing Leases, Unguaranteed Residual Values of Leased Property","description":"The estimate of the lease property's economic value at the end of the direct financing lease term excluding any amounts guaranteed by either the lessee or a third-party.","units":{"USD":[{"end":"2011-12-31","val":1,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2009-12-31","val":44000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":46000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2009-12-31","val":46000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2009-12-31","val":46000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-06-30","val":34000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2I"},{"end":"2010-09-30","val":28000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":20000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":20000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":20000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2010Q4I"},{"end":"2011-03-31","val":18000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1I"},{"end":"2011-06-30","val":58000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":58000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2I"},{"end":"2011-09-30","val":103000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":103000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3I"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2011-12-31","val":109000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":64000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2012-03-31","val":64000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1I"},{"end":"2012-06-30","val":39000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-06-30","val":39000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":114000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-09-30","val":114000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":25000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":125000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":125000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1I"},{"end":"2013-06-30","val":15000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":15000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2I"},{"end":"2013-09-30","val":58000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-09-30","val":58000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3I"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2013-12-31","val":23000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-03-31","val":122000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":122000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1I"},{"end":"2014-06-30","val":184000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":184000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2I"},{"end":"2014-09-30","val":257000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-09-30","val":257000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3I"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":141000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":34000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":271000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":25000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2008-12-31","end":"2009-12-31","val":-338000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-25000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-25000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-25000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-25000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":37000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":37000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":82000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":82000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":88000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":88000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-45000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-45000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-70000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-70000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":5000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-84000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-84000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-84000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-84000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-84000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":100000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":100000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-10000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":33000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":33000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":99000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":99000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":161000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":161000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":234000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":234000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":127000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":20000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":257000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"CashFlowHedgeGainLossReclassifiedToEarningsNet":{"label":"Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net (Deprecated 2013-01-31)","description":"The amount of net gains or losses on a cash flow hedge reclassified in the period to earnings from accumulated other comprehensive income.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths":{"label":"Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months","description":"The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":58000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-64000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-49000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-39000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":36000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":36000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-29000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":29000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":24000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-18000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":14000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":11000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Financing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-200000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-111000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-138000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-138000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-138000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-138000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-138000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":103000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":140000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":184000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":248000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":248000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":338000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":313000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":31000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":42000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":42000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":44000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":44000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":42000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":42000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":114000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":65000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":65000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-09-30","val":-21000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-25000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-25000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-25000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":64000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":52000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":40000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":40000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":47000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":47000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"}]}},"CollateralAlreadyPostedAggregateFairValue":{"label":"Collateral Already Posted, Aggregate Fair Value","description":"The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.","units":{"USD":[{"end":"2011-09-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":0,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"}]}},"CommonStockCapitalSharesReservedForFutureIssuance":{"label":"Common Stock, Capital Shares Reserved for Future Issuance","description":"Aggregate number of common shares reserved for future issuance.","units":{"shares":[{"end":"2011-12-31","val":14421629,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":19906382,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":19906382,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":19906382,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":26569117,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":24136266,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":22123913,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CommonStockDividendsPerShareCashPaid":{"label":"Common Stock, Dividends, Per Share, Cash Paid","description":"Aggregate dividends paid during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2008-12-31","end":"2009-12-31","val":1.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-07-01","end":"2010-09-30","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":1.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-03-31","end":"2011-06-30","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-07-01","end":"2011-09-30","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":1.08,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.27,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1.08,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1.08,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":0.27,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":0.27,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":0.27,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":0.27,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.27,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-04-01","end":"2013-06-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":0.27,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1.08,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":1.08,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1.08,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":0.27,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":0.27,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":0.27,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-03-31","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":0.27,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.27,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-04-01","end":"2014-06-30","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":0.27,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1.08,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1.08,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":0.27,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":0.27,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":0.27,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":0.27,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-03-31","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":0.27,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.27,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-04-01","end":"2015-06-30","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":0.27,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1.08,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":0.27,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"CommonStockDividendsPerShareDeclared":{"label":"Common Stock, Dividends, Per Share, Declared","description":"Aggregate dividends declared during the period for each share of common stock outstanding.","units":{"USD/shares":[{"start":"2011-07-27","end":"2011-07-28","val":0.27,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-10-26","end":"2011-10-27","val":0.27,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2012-01-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"start":"2012-04-01","end":"2012-04-30","val":0.27,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-09-30","val":27,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012"},{"start":"2013-03-01","end":"2013-03-28","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2013-03-01","end":"2013-03-31","val":0.27,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"}]}},"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":"2010-12-31","val":0.01,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":0.01,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":0.01,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":0.01,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":0.01,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":0.01,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":0.01,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":0.01,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":0.01,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0.01,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0.01,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":0.01,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0.01,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-04-29","val":0.01,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19"},{"end":"2014-06-30","val":0.01,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0.01,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0.01,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.01,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.01,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2010-12-31","val":400000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":400000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":400000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":400000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":400000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":400000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":400000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":400000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":400000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":400000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":400000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":400000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":400000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":400000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":400000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":400000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":400000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":400000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":400000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":400000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":400000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":400000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":400000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":400000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":400000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":400000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":400000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":400000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":400000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":400000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CommonStockSharesIssued":{"label":"Common Stock, Shares, Issued","description":"Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2012-03-05","val":17922077,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-03-05","val":17922077,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-03-05","val":17922077,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2012-03-05","val":17922077,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2012-03-05","val":17922077,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2012-03-31","val":17922077,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-12-31","val":17922077,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":17922077,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":17922077,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":17922077,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":17922077,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":17922077,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2010-12-31","val":225082252,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":225082252,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":225082252,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":226314924,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":226879348,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":227500190,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":228244115,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":228851815,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":229438681,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":230015427,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":248551381,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":249110050,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":249713980,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":250324898,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":250324898,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":250324898,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":250324898,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":250324898,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":250982923,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":251498408,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":251879809,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":252728684,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":252728684,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":252728684,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":252728684,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":252728684,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":253043362,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":253436046,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":253590612,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":254289261,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":3000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2008-12-31","end":"2009-12-31","val":256000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":62000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":92000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":92000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":30000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":167000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":167000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":167000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":167000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":80000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":184000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":184000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":104000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":104000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":273000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":273000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":89000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":89000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":300000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":300000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":300000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":300000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":300000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":76000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":76000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":142000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":142000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":66000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":66000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":258000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":258000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":116000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":116000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":300000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":300000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":300000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":300000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":300000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-424000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-424000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-381000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-381000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":43000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":43000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-262000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-262000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":119000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":119000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-198000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-198000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-198000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":76000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":76000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":127000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":127000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":51000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":51000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":208000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":208000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":81000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":81000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":230000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":230000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":54000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":110000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":56000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":202000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":92000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":337000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ConstructionAndDevelopmentCosts":{"label":"Construction and Development Costs (Deprecated 2018-01-31)","description":"The aggregate costs related to construction and development services during the reporting period.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":171000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":387000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":216000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":639000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":252000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":291000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":589000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":298000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":888000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":299000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":616000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":320000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":943000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":327000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":1310000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1310000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":282000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":553000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":553000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":271000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":271000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":846000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":846000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":293000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":293000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":1223000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1223000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":246000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":562000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":316000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":855000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":293000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1230000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ContractReceivableRetainageDueFiveYearsOrMore":{"label":"Contract Receivable Retainage, after Year Five","description":"Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract to be collected after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":2125000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ContractReceivableRetainageDueFourToFiveYears":{"label":"Contract Receivable Retainage, Year Five","description":"Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract to be collected 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":"2011-12-31","val":708000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ContractReceivableRetainageDueOneYearOrLess":{"label":"Contract Receivable Retainage, Next Twelve Months","description":"Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract to be collected 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":"2011-12-31","val":553000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ContractReceivableRetainageDueTwoToThreeYears":{"label":"Contract Receivable Retainage, Year Three","description":"Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract to be collected 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":"2011-12-31","val":716000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ContractualObligationDueAfterFifthYear":{"label":"Contractual Obligation, to be Paid, after Year Five","description":"Amount of contractual obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2014-12-31","val":1177000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":993000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ContractualObligationDueInFourthAndFifthYear":{"label":"Contractual Obligation, to be Paid, Year Four and Five","description":"Amount of contractual obligation to be paid in fourth and fifth fiscal years 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":653000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":653000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":653000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":486000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":478000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":472000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ContractualObligationDueInNextTwelveMonths":{"label":"Contractual Obligation, to be Paid, Year One","description":"Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2014-12-31","val":276000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":268000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ContractualObligationDueInSecondAndThirdYear":{"label":"Contractual Obligation, to be Paid, Year Two and Three","description":"Amount of contractual obligation to be paid in second and third fiscal years 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":707000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":707000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":707000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":562000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":509000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":469000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"CostOfGoodsAndServicesSoldDepreciationAndAmortization":{"label":"Cost, Depreciation and Amortization","description":"Amount of expense for allocation of cost of tangible and intangible assets over their useful lives directly used in production of good and rendering of service.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":349000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":182000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":93000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":286000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":104000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":393000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":392000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":393000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":105000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":210000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":210000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":105000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":105000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":115000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":115000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":426000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":425000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":426000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":110000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":110000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":221000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":221000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":111000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":111000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":343000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":343000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":122000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":122000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":112000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":228000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":116000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":352000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":124000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"}]}},"CostOfPurchasedPower":{"label":"Cost of Purchased Power (Deprecated 2018-01-31)","description":"Cost of electricity purchased as well as fuel used to generate electricity used in operations and sold during the reporting period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":5330000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":3683000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1319000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4631000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":3127000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":3127000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":4632000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":995000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1811000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":812000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":2759000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":2747000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":948000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":943000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":3422000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2537000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":2537000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":3453000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":641000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":684000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":1010000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":1239000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":465000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":555000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":1658000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":1948000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":648000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":709000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":2123000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2123000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2476000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":600000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1008000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":446000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1587000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":579000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"}]}},"CostsAndExpenses":{"label":"Costs and Expenses","description":"Total costs of sales and operating expenses for the period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":6754000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":1688000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":3131000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":1443000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":1443000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":4986000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1855000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1855000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":6415000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":6416000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":4883000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":4881000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":1429000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1485000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1485000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":1489000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":1195000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":1194000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":2692000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":2699000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":1207000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1207000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1210000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":1210000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":985000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":1023000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":4140000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4152000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":1448000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1448000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":1453000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":1453000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":1239000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":1238000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":5283000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":5314000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":4378000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4411000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4411000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":1143000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":1162000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":959000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":956000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":1153000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":1153000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1111000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":1010000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":1010000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":1010000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2180000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":1943000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1027000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1027000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":933000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":934000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":933000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":932000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3392000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":3130000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1212000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1212000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":1150000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":1188000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1188000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":1188000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":4411000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":4048000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":4084000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":4084000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":4084000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":1019000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":954000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":953000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":954000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":1088000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1047000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":1047000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":1047000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1969000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1953000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":921000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":906000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":906000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":906000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3062000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3062000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1109000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1109000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":1109000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1109000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":3998000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":3998000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":936000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":936000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":1157000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":1157000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":1157000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2123000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":2123000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":966000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":966000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":966000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3270000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":1147000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":1147000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":4274000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":1004000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":1229000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2230000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":1001000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"}]}},"CostsIncurredAssetRetirementObligationIncurred":{"label":"Costs Incurred, Asset Retirement Obligation Incurred","description":"Amount of asset retirement obligations (ARO) costs incurred (whether capitalized or charged to expense) during the period.","units":{"USD":[{"start":"2010-10-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4"},{"start":"2010-10-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-10-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-10-01","end":"2010-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"}]}},"CreditRiskDerivativeLiabilitiesAtFairValue":{"label":"Credit Risk Derivative Liabilities, at Fair Value","description":"Fair value of credit risk derivative liability.","units":{"USD":[{"end":"2010-12-31","val":156000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":156000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":156000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":90000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":74000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":54000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":54000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":54000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":54000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":54000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":40000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":20000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":14000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"}]}},"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":-270000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-281000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-162000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-03-31","end":"2011-06-30","val":-14000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":14000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":14000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-72000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-72000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-76000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-92000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-166000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-166000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-166000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-128000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-128000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-128000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-137000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-137000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-3000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":-320000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-333000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-217000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-60000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-60000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-115000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-133000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-206000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-206000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-206000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-137000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-137000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-137000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-163000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-163000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2010-06-30","val":8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-12-31","val":-50000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-52000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-55000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-41000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-26000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DebtInstrumentCarryingAmount":{"label":"Long-term Debt, Gross","description":"Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.","units":{"USD":[{"end":"2010-12-31","val":3675000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-09-30","val":200000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3879000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3879000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3879000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3879000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4190000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":4190000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4190000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4190000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":4470000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4470000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4817000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4817000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":5001000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DebtInstrumentFairValue":{"label":"Debt Instrument, Fair Value Disclosure","description":"Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.","units":{"USD":[{"end":"2012-12-31","val":906000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":906000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":906000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":806000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"DebtInstrumentInterestRateStatedPercentage":{"label":"Debt Instrument, Interest Rate, Stated Percentage","description":"Contractual interest rate for funds borrowed, under the debt agreement.","units":{"pure":[{"end":"2012-09-28","val":0.056,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"}]}},"DebtInstrumentPrincipalOutstanding":{"label":"Debt Instrument, Principal Outstanding (Deprecated 2011-01-31)","description":"Amount of outstanding principal due under the debt instrument at the end of the reporting period, before deducting unamortized discount or premium, if any.","units":{"USD":[{"end":"2010-10-31","val":200000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q3I"}]}},"DebtInstrumentUnamortizedDiscountPremiumNet":{"label":"Debt Instrument, Unamortized Discount (Premium), Net","description":"Amount, after accumulated amortization, of debt discount (premium).","units":{"USD":[{"end":"2010-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":-14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DebtInstrumentUnusedBorrowingCapacityAmount":{"label":"Debt Instrument, Unused Borrowing Capacity, Amount","description":"Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":1000000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":994000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":994000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":994000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":711000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":711000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":679000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":969000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1078000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":861000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":861000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":477000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":477000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":477000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":477000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":477000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":975000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":595000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":471000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":332000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":332000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":332000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":332000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":332000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":562000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":736000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":885000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":413000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":413000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q4I"},{"end":"2015-03-31","val":547000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"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":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DeferredCompensationLiabilityCurrentAndNoncurrent":{"label":"Deferred Compensation Liability, Current and Noncurrent","description":"Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.","units":{"USD":[{"end":"2010-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":300000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":300000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":165000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2011-01-01","end":"2011-12-31","val":121000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":121000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":163000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":163000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":216000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":216000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":254000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":254000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":254000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":393000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":393000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":393000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":261000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":261000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2008-12-31","end":"2009-12-31","val":249000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":53000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":258000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":345000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":345000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":345000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":345000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":90000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":61000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":61000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":165000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":165000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":140000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":140000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":140000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":140000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":178000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":259000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":259000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":235000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":235000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":279000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":279000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":274000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":274000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":274000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":312000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":312000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-496000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-496000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-451000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-451000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-386000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-386000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":458000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":458000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":458000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":525000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":525000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":225000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":225000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":259000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":259000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":302000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":302000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":49000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":74000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":109000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":122000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DeferredIncomeTaxLiabilities":{"label":"Deferred Tax Liabilities, Gross","description":"Amount of deferred tax liability attributable to taxable temporary differences.","units":{"USD":[{"end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"}]}},"DeferredIncomeTaxLiabilitiesNet":{"label":"Deferred Income Tax Liabilities, Net","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.","units":{"USD":[{"end":"2014-12-31","val":3225000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3378000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredRevenueAndCredits":{"label":"Deferred Revenue and Credits","description":"Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP.","units":{"USD":[{"end":"2011-12-31","val":4565000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2011-12-31","val":4581000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4565000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":4581000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":4581000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4302000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":4302000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-12-31","val":3883000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":3883000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":3883000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":3883000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":3883000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4030000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4061000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4078000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4481000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4481000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4481000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4481000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4457000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4540000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4571000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4654000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4599000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredRevenueAndCreditsNoncurrent":{"label":"Deferred Revenue and Credits, Noncurrent","description":"Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such after one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2011-12-31","val":4581000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":4851000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"}]}},"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":"2009-12-30","end":"2010-03-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-07-01","end":"2010-09-30","val":13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":34000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":34000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":41000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":58000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":58000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":58000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":58000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":58000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":65000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":65000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":65000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":41000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":41000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":30000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DeferredTaxAssetsLiabilitiesNet":{"label":"Deferred Tax Assets, Net","description":"Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.","units":{"USD":[{"end":"2010-12-31","val":2625000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2805000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2805000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2837000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2837000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3150000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3182000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3182000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3182000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2879000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2879000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3225000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","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":"2010-03-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1I"}]}},"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":2714000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3176000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2928000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2928000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":3266000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"DeferredTaxAssetsNetCurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Current","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.","units":{"USD":[{"end":"2010-12-31","val":90000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":90000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":90000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":89000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":69000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":59000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":43000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":42000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":43000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":28000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":36000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":36000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":37000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":51000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":51000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":51000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":51000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":51000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":56000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":50000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":34000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":50000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":47000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":47000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":70000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsNetNoncurrent":{"label":"Deferred Tax Assets, Net of Valuation Allowance, Noncurrent","description":"Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.","units":{"USD":[{"end":"2014-12-31","val":17000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsOperatingLossCarryforwards":{"label":"Deferred Tax Assets, Operating Loss Carryforwards","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.","units":{"USD":[{"end":"2014-12-31","val":400000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":446000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsOther":{"label":"Deferred Tax Assets, Other","description":"Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.","units":{"USD":[{"end":"2010-12-31","val":-113000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":64000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":64000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":204000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":204000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":172000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"DeferredTaxAssetsTaxCreditCarryforwards":{"label":"Deferred Tax Assets, Tax Credit Carryforwards","description":"Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.","units":{"USD":[{"end":"2013-12-31","val":101000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"}]}},"DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits":{"label":"Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits","description":"Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.","units":{"USD":[{"end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"}]}},"DeferredTaxAssetsValuationAllowance":{"label":"Deferred Tax Assets, Valuation Allowance","description":"Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.","units":{"USD":[{"end":"2010-12-31","val":8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q4I"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1I"},{"end":"2013-12-31","val":101000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":101000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-12-31","val":61000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":63000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxAssetsValuationAllowanceNoncurrent":{"label":"Deferred Tax Assets, Valuation Allowance, Noncurrent","description":"Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":-21000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":21000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":21000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-21000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":21000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":21000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":21000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":21000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":21000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":61000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"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":2895000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":2717000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-03-31","val":2717000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"}]}},"DeferredTaxLiabilitiesCurrent":{"label":"Deferred Tax Liabilities, Net, Current","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current.","units":{"USD":[{"end":"2010-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"DeferredTaxLiabilitiesLeasingArrangements":{"label":"Deferred Tax Liabilities, Leasing Arrangements","description":"Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.","units":{"USD":[{"end":"2010-12-31","val":816000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":-793000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-756000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"}]}},"DeferredTaxLiabilitiesNoncurrent":{"label":"Deferred Tax Liabilities, Net, Noncurrent","description":"Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":2714000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":2714000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":2714000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":2749000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":2891000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":2863000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2895000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3119000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":3104000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":3213000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3176000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3176000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3208000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2685000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2770000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2847000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2928000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":2928000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":2928000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":3160000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":3191000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":3266000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":3266000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":3266000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":3266000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":3242000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":3294000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":3330000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":3415000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":3393000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxLiabilitiesOther":{"label":"Deferred Tax Liabilities, Other","description":"Amount of deferred tax liability attributable to taxable temporary differences classified as other.","units":{"USD":[{"end":"2012-12-31","val":204000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":285000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":285000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":325000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":325000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":267000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DeferredTaxLiabilitiesPrepaidPensionCosts":{"label":"Deferred Tax Liabilities, Prepaid Pension Costs (Deprecated 2013-01-31)","description":"The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis of pension liabilities funded in advance and the basis of a prepaid pension asset determined in accordance with generally accepted accounting principles. The difference in basis of such costs will increase future taxable income when such basis difference reverses. Prepaid pension costs represented the cumulative employer's contributions in excess of net pension cost recognized, before the adoption of the recognition provisions of FAS 158. Under FAS 158, prepaid pension costs are no longer recognized in the statement of financial position.","units":{"USD":[{"end":"2010-12-31","val":70000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":130000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":-130000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":130000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":128000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":-128000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2010-12-31","val":1680000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1871000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1871000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1871000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1871000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2299000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2299000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2299000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2299000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2628000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2628000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2962000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2962000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":3273000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DefinedBenefitPensionPlanLiabilitiesNoncurrent":{"label":"Liability, Defined Benefit Pension Plan, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.","units":{"USD":[{"end":"2010-12-31","val":332000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":332000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":332000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":214000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":239000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":424000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":232000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":305000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":299000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":449000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":388000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":310000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":310000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":116000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":116000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":116000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":116000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":116000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":118000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":124000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":130000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":396000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":396000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":396000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":396000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":396000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":401000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":437000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":443000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":466000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeMinimumPensionLiabilityBeforeTax":{"label":"Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Minimum Pension Liability, before Tax (Deprecated 2017-01-31)","description":"Before tax amount of additional minimum pension liability not yet recognized as a net periodic pension cost.","units":{"USD":[{"end":"2010-06-30","val":15000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2I"},{"end":"2010-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2011-06-30","val":20000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":21000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"DefinedBenefitPlanAssetsForPlanBenefitsCurrentAndNoncurrent":{"label":"Defined Benefit Plan, Assets for Plan Benefits (Deprecated 2017-01-31)","description":"This represents the entire assets recognized in the balance sheet that are associated with the defined benefit plans.","units":{"USD":[{"end":"2010-12-31","val":1600000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1700000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1700000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1700000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1700000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":2000000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2000000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2000000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2010-12-31","end":"2011-12-31","val":0.0775,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.0775,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0.0725,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.0725,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.0725,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":1900000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2000000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2000000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2000000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2000000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":2300000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":2300000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2300000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2300000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-12-31","val":2100000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"DefinedBenefitPlanDebtSecurities":{"label":"Defined Benefit Plan, Debt Securities (Deprecated 2012-01-31)","description":"The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date.","units":{"pure":[{"end":"2011-09-30","val":0.4,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation":{"label":"Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation (Deprecated 2012-01-31)","description":"The effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.","units":{"USD":[{"start":"2010-12-31","end":"2011-12-31","val":-28,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"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":-27000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-27000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-27000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":19000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":20000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":18000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents":{"label":"Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components (Deprecated 2012-01-31)","description":"The effect of a one-percentage- point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.","units":{"USD":[{"start":"2010-12-31","end":"2011-12-31","val":-1,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"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":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2010-12-31","end":"2011-12-31","val":32,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":33000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":33000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":33000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":17000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":18000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2010-12-31","end":"2011-12-31","val":2,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DefinedBenefitPlanEffectOfPlanAmendmentOnNetPeriodicBenefitCost":{"label":"Defined Benefit Plan, Effect of Plan Amendment on Net Periodic Benefit Cost (Deprecated 2017-01-31)","description":"The amount of increase or decrease in net periodic benefit cost related to the effects of a change in the substantive terms of an existing defined benefit plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered.","units":{"USD":[{"end":"2014-03-31","val":7000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"}]}},"DefinedBenefitPlanEquitySecurities":{"label":"Defined Benefit Plan, Equity Securities (Deprecated 2012-01-31)","description":"The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date.","units":{"pure":[{"end":"2011-09-30","val":0.53,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"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":1907000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1975000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1975000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1975000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1975000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2360000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2360000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2360000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2360000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2484000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2484000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2603000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"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":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"}]}},"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":"2006-12-31","end":"2007-12-31","val":0.07,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2007"},{"start":"2008-01-01","end":"2008-12-31","val":0.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2008"},{"start":"2011-01-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2008-12-31","end":"2009-12-31","val":149000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":116000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":116000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":116000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":116000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":94000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":94000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":94000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":94000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":94000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":110000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":95000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":58000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":58000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":97000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DefinedBenefitPlanOtherPlanAssets":{"label":"Defined Benefit Plan, Other Plan Assets (Deprecated 2012-01-31)","description":"The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date.","units":{"pure":[{"end":"2011-09-30","val":0.07,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"DefinedBenefitPlanTargetPlanAssetAllocations":{"label":"Defined Benefit Plan, Target Plan Asset Allocations (Deprecated 2017-01-31)","description":"Target allocation of investments of this type to total plan assets presented on a weighted average basis.","units":{"pure":[{"start":"2013-01-01","end":"2013-12-31","val":0.66,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.68,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"DefinedContributionPlanCostRecognized":{"label":"Defined Contribution Plan, Cost","description":"Amount of cost for defined contribution plan.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2008-12-31","end":"2009-12-31","val":349000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":286000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":104000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":393000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":393000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":392000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":392000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":105000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-04-01","end":"2011-06-30","val":105000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":325000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":115000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":115000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":426000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":426000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":425000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":425000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":425000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":110000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":110000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":221000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":111000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":111000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":343000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":343000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":122000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":122000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":454000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":112000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":112000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":228000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":228000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":116000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":116000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":352000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":352000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":124000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":124000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":473000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":473000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":473000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":133000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":133000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":265000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":265000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":132000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":132000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":410000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":410000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":145000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":145000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":549000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":549000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":159000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":316000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":157000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":494000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":178000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":651000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"DerivativeAssets":{"label":"Derivative Asset","description":"Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2010-12-31","val":114000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":114000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":198000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":192000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":192000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":192000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":192000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":192000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":150000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":133000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":216000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":113000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q4I"},{"end":"2012-12-31","val":113000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":200000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-09-30","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"DerivativeAssetsCurrent":{"label":"Derivative Asset, Current","description":"Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, 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":"2010-12-31","val":45000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":45000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":45000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":22000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":6000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"DerivativeAssetsNoncurrent":{"label":"Derivative Asset, Noncurrent","description":"Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2012-06-30","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"DerivativeCollateralObligationToReturnCash":{"label":"Derivative, Collateral, Obligation to Return Cash","description":"Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.","units":{"USD":[{"end":"2012-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2013-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"}]}},"DerivativeCollateralRightToReclaimCash":{"label":"Derivative, Collateral, Right to Reclaim Cash","description":"Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.","units":{"USD":[{"end":"2012-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"DerivativeFairValueAmountOffsetAgainstCollateralNet":{"label":"Derivative, Fair Value, Amount Offset Against Collateral, Net","description":"The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement.","units":{"USD":[{"end":"2010-12-31","val":122000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":122000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":122000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":78000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":75000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":64000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":47000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":27000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":18000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012Q4I"}]}},"DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure":{"label":"Derivative Financial Instruments, Liabilities, Fair Value Disclosure (Deprecated 2013-01-31)","description":"Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.","units":{"USD":[{"end":"2010-12-31","val":216000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":216000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-09-30","val":137000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":128000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2011-12-31","val":128000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":128000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":128000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":128000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":115000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":96000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":78000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":53000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q4I"},{"end":"2012-12-31","val":64000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":44000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"}]}},"DerivativeForwardPrice":{"label":"Derivative, Forward Price","description":"The forward price on the price risk forward or futures contract, such as a gas futures contract.","units":{"USD/EquityUnit":[{"end":"2013-02-27","val":17.39,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-02-27","val":17.39,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q1I"}]}},"DerivativeGainLossOnDerivativeNet":{"label":"Derivative, Gain (Loss) on Derivative, Net","description":"Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":9000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-09-30","val":-11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet":{"label":"Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net","description":"The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":164000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":85000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":39000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":108000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":23000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":135000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":135000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":27000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":46000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":46000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":61000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":61000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":80000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":80000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":25000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":31000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":38000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet":{"label":"Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net","description":"The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012"}]}},"DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet":{"label":"Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net (Deprecated 2018-01-31)","description":"The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":37000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":50000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":26000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":22000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":22000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":64000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":64000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":81000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":25000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":31000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"DerivativeLiabilities":{"label":"Derivative Liability","description":"Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2013-09-30","val":14000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"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":"2010-12-31","val":66000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":66000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":66000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":47000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":33000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":26000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":26000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":26000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":26000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":26000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":25000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":18000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":13000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"}]}},"DerivativeLiabilitiesNoncurrent":{"label":"Derivative Liability, Noncurrent","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 after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.","units":{"USD":[{"end":"2010-12-31","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":21000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":6000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":14000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"}]}},"DerivativeLiabilityCollateralRightToReclaimCashOffset":{"label":"Derivative Liability, Collateral, Right to Reclaim Cash, Offset","description":"Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.","units":{"USD":[{"end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2014-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"DerivativeLossOnDerivative":{"label":"Derivative, Loss on Derivative","description":"Amount of decrease in the fair value of derivatives recognized in the income statement.","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalNetOfTax":{"label":"Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, Net of Tax","description":"Amount after tax of an increase (decrease) to a gain (loss) previously reported in discontinued operations in a prior period.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"}]}},"DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax":{"label":"Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax","description":"Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.","units":{"USD":[{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax":{"label":"Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax","description":"Amount after tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until disposal.","units":{"USD":[{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":17000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod":{"label":"Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period","description":"Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":5000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-43000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-44000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-44000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-44000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation":{"label":"Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation","description":"Amount of tax expense (benefit) on gain (loss) not previously recognized resulting from the disposal of a discontinued operation.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":36000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":36000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":30000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":30000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":48000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"DisposalGroupIncludingDiscontinuedOperationRevenue":{"label":"Disposal Group, Including Discontinued Operation, Revenue","description":"Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":265000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":109000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2013-01-01","end":"2013-06-30","val":84000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":34000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"DividendsCash":{"label":"Dividends, Cash","description":"Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":120000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":60000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":181000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":61000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-06-30","val":122000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":61000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":183000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":61000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"DividendsCommonStock":{"label":"Dividends, Common Stock","description":"Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":238000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":241000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":244000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":61000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":61000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":61000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":62000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":67000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":67000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":67000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":68000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":68000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":68000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":68000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":68000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":68000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":272000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":272000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":68000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":68000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":68000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":69000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":69000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":275000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EarningsPerShareBasic":{"label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1.29,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EarningsPerShareBasicAndDiluted":{"label":"Earnings Per Share, Basic and Diluted","description":"The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2008-12-31","end":"2009-12-31","val":1.06,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":0.16,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":-0.24,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-07-01","end":"2010-09-30","val":0.08,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0.14,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":0.14,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":0.28,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":0.28,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":0.28,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":0.28,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":0.28,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":0.7,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":0.42,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":1.05,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1.05,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1.14,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-10-01","end":"2011-12-31","val":0.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":0.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.57,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0.57,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1.06,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":1.06,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":-1.82,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-1.82,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-1.82,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-1.82,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.6,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-1.6,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.17,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.17,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":0.17,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.17,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.1,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-1.1,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.48,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.48,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":0.48,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.48,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":0.23,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":0.23,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":0.3,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":0.3,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":0.3,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":0.3,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.51,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":0.51,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.21,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.21,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.21,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.21,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.82,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":0.82,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.31,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.31,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":0.31,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.31,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":0.14,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":0.14,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":0.21,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":0.21,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.42,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.21,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.21,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.78,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1.29,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":0.51,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"EarningsPerShareDiluted":{"label":"Earnings Per Share, Diluted","description":"The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0.14,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.86,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1.29,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EffectiveIncomeTaxRateContinuingOperations":{"label":"Effective Income Tax Rate Reconciliation, Percent","description":"Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":0.318,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0.358,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":0.303,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.294,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.4,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0.073,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.073,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-0.017,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.182,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":0.354,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.359,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":0.359,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.362,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.362,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0.376,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":0.376,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.407,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.407,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":0.364,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.364,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.365,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.339,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.339,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":0.171,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.149,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.274,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0.252,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.361,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.354,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.37,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":0.333,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.454,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.396,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.354,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0.348,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.321,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.321,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.321,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-0.458,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":2.5,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.742,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1.369,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.457,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.361,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0.843,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.843,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.371,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.371,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0.744,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.744,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.744,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.38,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":0.38,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.416,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":0.416,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.459,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.459,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.376,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":0.376,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.301,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.301,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.363,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.363,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.361,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.35,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.338,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.289,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent","description":"Percentage of domestic federal statutory tax rate applicable to pretax income (loss).","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":0.35,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0.35,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":0.35,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0.35,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0.35,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":0.35,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.35,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":0.35,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.35,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.35,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":0.35,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.35,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":0.35,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.35,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.35,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0.35,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.35,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.35,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":0.35,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.35,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.35,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":0.35,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":0.35,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0.35,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":0.35,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.35,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.35,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0.35,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.35,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.35,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.35,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.35,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.35,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":0.35,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.35,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":0.35,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.35,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.35,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.35,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.35,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.35,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.35,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.35,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.35,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.35,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.35,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.","units":{"pure":[{"start":"2010-01-01","end":"2010-06-30","val":-0.048,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-0.044,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-0.053,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.053,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-0.068,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.104,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2013-01-01","end":"2013-03-31","val":-0.342,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1.365,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.449,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":0.643,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":0.304,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.304,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":0.235,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.235,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.235,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"EffectiveIncomeTaxRateReconciliationDeductions":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions.","units":{"pure":[{"start":"2014-01-01","end":"2014-09-30","val":-0.012,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":-0.035,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":0.048,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.025,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-0.02,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-0.014,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"}]}},"EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Medicare Prescription Drug Benefit, Percent","description":"Percentage of 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 deduction for Medicare prescription drug benefit subsidy.","units":{"pure":[{"start":"2010-01-01","end":"2010-06-30","val":0.022,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"EffectiveIncomeTaxRateReconciliationDeductionsOther":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Other, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions.","units":{"pure":[{"start":"2011-01-01","end":"2011-03-31","val":-0.022,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-0.012,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"EffectiveIncomeTaxRateReconciliationDispositionOfAssets":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Asset, Percent","description":"Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":-0.04,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2011-01-01","end":"2011-06-30","val":0.016,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":-0.016,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.027,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-0.027,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-12-31","end":"2011-12-31","val":-0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.012,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to depreciation.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":0.018,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0.017,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":0.014,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.024,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.093,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.02,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.039,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-0.026,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.02,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-06-30","val":-0.004,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-0.005,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-0.007,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.003,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.002,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-0.002,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLeases":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Leases, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to lease expense.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":-0.017,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.015,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-0.012,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.023,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.1,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.033,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.043,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.033,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-0.012,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.082,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":0.082,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.141,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.141,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":0.039,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":0.039,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-0.037,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":-0.037,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":0.039,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.039,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.039,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":-0.014,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-0.012,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":-0.013,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-0.012,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-0.012,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":-0.011,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":0.034,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.073,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.03,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":0.027,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":-0.217,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.311,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.086,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to restructuring charges.","units":{"pure":[{"start":"2010-01-01","end":"2010-06-30","val":-0.052,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-0.078,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.036,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.14,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.04,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.078,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-0.051,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.04,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"EffectiveIncomeTaxRateReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":-0.022,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.022,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-0.022,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.011,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.043,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.044,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.022,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-0.025,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.007,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-0.005,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-0.029,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-0.029,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-0.021,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-0.015,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-0.008,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-0.023,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.026,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.005,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-0.034,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.02,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-0.019,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-0.023,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-0.041,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":0.004,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-0.024,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-0.022,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-0.039,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-0.019,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-0.033,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-0.017,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-0.021,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-0.008,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-0.01,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-0.014,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-0.02,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-0.014,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-0.029,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-0.029,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-0.015,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":0.069,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.004,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":0.006,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-0.065,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-0.061,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-0.007,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-0.007,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":-0.019,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":-0.019,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-0.002,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-0.002,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-0.002,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-0.003,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-0.003,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-0.011,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-0.011,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-0.013,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-0.013,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-0.019,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-0.019,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":-0.032,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":-0.032,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-0.034,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-0.034,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-0.001,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-0.005,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":-0.011,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-0.016,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-0.022,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-0.012,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":0.057,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":0.056,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":0.05,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.02,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.373,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-0.017,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.023,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":0.05,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":0.045,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":0.045,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.04,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":0.04,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0.05,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":0.05,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.067,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.067,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":0.054,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":0.054,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.054,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.067,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.067,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":0.049,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.054,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.054,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0.066,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.053,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.061,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.05,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":0.069,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.044,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.063,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.048,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0.048,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.06,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-0.017,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":0.068,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-0.044,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":0.064,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.086,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.072,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0.063,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.063,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.063,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.063,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0.063,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.063,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.063,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0.058,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":0.058,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.068,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":0.068,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0.071,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.071,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.063,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":0.063,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":0.053,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.053,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":0.061,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.061,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0.072,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0.061,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0.05,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":0.059,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":0.057,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":0.06,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EffectiveIncomeTaxRateReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, Percent","description":"Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"pure":[{"start":"2008-12-31","end":"2009-12-31","val":-0.012,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-0.012,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-0.009,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.016,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.06,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.027,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-0.052,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-0.034,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.027,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-0.012,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-0.008,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-0.007,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-0.008,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-0.007,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.012,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":-0.012,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":-0.009,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-0.008,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-0.007,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"ElectricalTransmissionRevenue":{"label":"Electrical Transmission Revenue (Deprecated 2018-01-31)","description":"Revenue from the bulk transport of high voltage power, typically over longer distances, between generating plants and distribution systems.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010"},{"start":"2011-04-01","end":"2011-06-30","val":-3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount":{"label":"Share-based Payment Arrangement, Amount Capitalized","description":"Amount of cost capitalized for award under share-based payment arrangement.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized":{"label":"Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount","description":"Amount of cost not yet recognized for nonvested award under share-based payment arrangement.","units":{"USD":[{"end":"2011-12-31","val":9000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":13000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition":{"label":"Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31)","description":"The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.","units":{"years":[{"start":"2010-12-31","end":"2011-12-31","val":2,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"EnvironmentalCostsOfPropertyForSaleDisposalOrAbandonmentAccruedExitCosts":{"label":"Environmental Costs of Property for Sale, Disposal or Abandonment, Accrued Exit Costs (Deprecated 2014-01-31)","description":"Amount accrued as of the balance sheet date for environmental costs associated with the sale, disposal or abandonment of property.","units":{"USD":[{"end":"2011-06-30","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"}]}},"EquityMethodInvestments":{"label":"Equity Method Investments","description":"This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.","units":{"USD":[{"end":"2009-12-31","val":1947000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-12-31","val":3033000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":3054000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":1632000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3654000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3654000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3665000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2319000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":3897000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3869000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2633000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2633000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3935000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":3935000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":4256000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4256000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4636000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ExciseAndSalesTaxes":{"label":"Excise and Sales Taxes","description":"The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":293000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":162000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":88000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":280000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":118000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":373000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":362000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":362000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":362000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":96000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":190000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":190000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":302000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":302000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":111000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":111000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":390000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":378000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":378000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":378000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":378000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":92000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":86000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":184000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":174000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":93000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":87000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":293000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":275000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":110000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":103000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":356000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":356000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":356000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":356000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":356000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":84000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":166000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":166000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":83000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":83000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":264000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":264000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":98000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":98000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":346000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":346000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":346000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":83000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":83000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":161000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":161000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":78000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":78000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":246000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":246000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":85000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":85000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":321000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":321000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":83000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":164000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":81000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":249000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":85000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":322000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ExtinguishmentOfDebtGainLossIncomeTax":{"label":"Extinguishment of Debt, Gain (Loss), Income Tax","description":"Current period income tax expense or benefit pertaining to a gain (loss) on an extinguishment of debt.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":120000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"}]}},"ExtinguishmentOfDebtGainLossNetOfTax":{"label":"Extinguishment of Debt, Gain (Loss), Net of Tax","description":"The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.","units":{"USD":[{"start":"2009-12-31","end":"2010-12-31","val":113000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":113000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":113000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":113000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOtherIncome":{"label":"Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Other Income (Deprecated 2013-01-31)","description":"This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in other income. Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"FairValueAssetsMeasuredOnRecurringBasisDerivativeFinancialInstrumentsAssets":{"label":"Fair Value, Assets Measured on Recurring Basis, Derivative Financial Instruments, Assets (Deprecated 2011-01-31)","description":"This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis.","units":{"USD":[{"end":"2010-12-31","val":114000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q4I"},{"end":"2011-06-30","val":153000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"}]}},"FairValueAssetsMeasuredOnRecurringBasisGainLossIncludedInOtherIncome":{"label":"Fair Value, Assets Measured on Recurring Basis, Gain (Loss) Included in Other Income (Deprecated 2013-01-31)","description":"This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets) in other income; the fair value of which assets was or is measured on a recurring basis using significant unobservable inputs (Level 3).","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLoss":{"label":"Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)","description":"Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held.","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"FairValueLiabilitiesMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInOtherIncome":{"label":"Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Other Income (Deprecated 2013-01-31)","description":"This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets) in other income. Such unrealized (holding) gains or losses relate to those liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"FairValueLiabilitiesMeasuredOnRecurringBasisDerivativeFinancialInstrumentsLiabilities":{"label":"Fair Value, Liabilities Measured on Recurring Basis, Derivative Financial Instruments, Liabilities (Deprecated 2011-01-31)","description":"This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis.","units":{"USD":[{"end":"2010-12-31","val":216000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q4I"},{"end":"2011-06-30","val":153000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"}]}},"FairValueLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInOtherIncome":{"label":"Fair Value, Liabilities Measured on Recurring Basis, Gain (Loss) Included in Other Income (Deprecated 2013-01-31)","description":"This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets) in other income; the fair value of which liabilities was or is measured on a recurring basis using significant unobservable inputs (Level 3).","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":5000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings":{"label":"Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings","description":"Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).","units":{"USD":[{"start":"2012-01-01","end":"2012-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"}]}},"GainLossOnContractTermination":{"label":"Gain (Loss) on Contract Termination","description":"Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":39000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":39000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":39000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-04-01","end":"2011-06-30","val":39000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":39000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":39000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-06-30","val":-14000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-14000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"GainLossOnDerivativeInstrumentsNetPretax":{"label":"Gain (Loss) on Derivative Instruments, Net, Pretax","description":"Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2015-01-01","end":"2015-09-30","val":15000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":15000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"GainLossOnDispositionOfAssets1":{"label":"Gain (Loss) on Disposition of Assets","description":"Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-47000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"}]}},"GainsLossesOnExtinguishmentOfDebt":{"label":"Gain (Loss) on Extinguishment of Debt","description":"Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":-135000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-135000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":-135000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-189000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-189000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-189000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-189000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-10-01","end":"2010-12-31","val":-54000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"}]}},"GainsLossesOnSalesOfAssets":{"label":"Gain (Loss) on Disposition of Assets for Financial Service Operations","description":"Amount of gain (loss) on sale or disposal of assets utilized in financial service operations.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"Goodwill":{"label":"Goodwill","description":"Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2009-12-31","val":1407000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":1407000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1407000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1407000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1407000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1407000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1407000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1407000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1407000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1407000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1407000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1407000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1407000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":1407000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":1407000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":1407000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":1407000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1407000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":1407000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1407000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":1407000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1407000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1407000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1407000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":1407000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":1407000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":1407000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1406000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1406000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1406000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1406000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"GoodwillGross":{"label":"Goodwill, Gross","description":"Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2009-12-31","val":1425000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4I"},{"end":"2010-12-31","val":1425000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":1425000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":1425000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":1425000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1425000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":1425000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1425000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1425000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":1425000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":1425000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1425000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"GoodwillImpairedAccumulatedImpairmentLoss":{"label":"Goodwill, Impaired, Accumulated Impairment Loss","description":"Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"end":"2009-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4I"},{"end":"2010-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":18000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":18000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4I"},{"end":"2011-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":18000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":18000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":18000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":18000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":18000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":18000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":18000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":18000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":18000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"GoodwillImpairmentLoss":{"label":"Goodwill, Impairment Loss","description":"Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.","units":{"USD":[{"start":"2009-10-01","end":"2009-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4"}]}},"GuaranteeObligationsMaximumExposure":{"label":"Guarantor Obligations, Maximum Exposure, Undiscounted","description":"Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.","units":{"USD":[{"end":"2011-06-30","val":257000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":211000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":210000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-03-31","val":192000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":149,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":130,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":120000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":120000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":120000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-03-31","val":106000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":85000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":80000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":78000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-03-31","val":36000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":36000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":36000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":33000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":32000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":33000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":33000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":32000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"IncomeLossFromContinuingOperations":{"label":"Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent","description":"Amount after tax of income (loss) from continuing operations attributable to the parent.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":223000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":28000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":104000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":76000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":76000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":125000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":21000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":139000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":139000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":119000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":91000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":14000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":62000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":62000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":62000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":56000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":49000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":157000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":157000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":95000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":95000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":95000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":95000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":79000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":237000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":237000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":78000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":71000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":260000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":260000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":258000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":222000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":222000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":23000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":23000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":30000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":23000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":63000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":60000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":50000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":50000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":113000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":53000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":53000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":46000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":47000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":242000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":184000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":104000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":87000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":87000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":87000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":259000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":218000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":218000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":218000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":42000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":34000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-111000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-111000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-111000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-392000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-58000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":38000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":53000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":53000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":53000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":52000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":52000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":110000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":110000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":110000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":110000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":110000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":110000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":110000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":58000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":58000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":128000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":207000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":79000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":242000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":242000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":318000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":121000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"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":"2012-01-01","end":"2012-12-31","val":321000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":74000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":74000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":157000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":83000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":83000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":332000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":175000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":175000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":429000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":429000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":97000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":121000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":121000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":121000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":121000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":219000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":219000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":98000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":98000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":98000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":98000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":332000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":332000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":113000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":113000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":113000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":113000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":380000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":380000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":48000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":83000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":83000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":163000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":80000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":80000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":303000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":140000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":140000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":447000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":144000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"IncomeLossFromContinuingOperationsPerBasicAndDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Basic and Diluted Share","description":"The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.","units":{"USD/shares":[{"start":"2008-12-31","end":"2009-12-31","val":1.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":0.13,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":0.34,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":0.56,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.09,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":0.09,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":0.62,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":0.06,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":0.27,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":0.27,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":0.27,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":0.25,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":0.22,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":0.69,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":0.42,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.42,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":0.41,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":0.35,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":1.05,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1.05,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":0.35,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":0.31,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":1.15,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1.15,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.98,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-10-01","end":"2011-12-31","val":0.1,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":0.1,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":0.13,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":0.1,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.3,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":0.28,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.57,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":0.5,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.27,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.23,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1.06,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":0.8,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.49,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.38,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":-1.82,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-0.47,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-0.47,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-0.47,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1.61,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-0.24,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.16,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":0.21,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":0.21,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.21,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":0.21,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":0.21,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.44,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.44,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":0.44,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.44,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":0.23,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":0.23,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":0.3,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0.51,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0.21,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":0.82,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":0.31,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":0.21,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":0.21,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":0.36,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1.25,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":0.48,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"IncomeLossFromContinuingOperationsPerBasicShare":{"label":"Income (Loss) from Continuing Operations, Per Basic Share","description":"The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":0.62,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0.53,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0.41,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1.15,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.98,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.98,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.22,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.22,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.23,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.2,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.2,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.46,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.38,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.38,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.25,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1.13,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":0.15,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.15,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1.25,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeLossFromContinuingOperationsPerDilutedShare":{"label":"Income (Loss) from Continuing Operations, Per Diluted Share","description":"The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":0.62,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":0.53,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":0.41,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":1.15,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1.14,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":0.98,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.98,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.27,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.22,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.22,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.23,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.2,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.2,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.45,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.38,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.38,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1.24,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1.12,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.95,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.18,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":0.15,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.15,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":0.45,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":0.96,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1.25,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTax":{"label":"Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest","description":"Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-122000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":-130000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":-130000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-126000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-107000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-107000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-87000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-59000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":19000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":35000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":-11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":18000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":17000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":16000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":58000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":25000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":25000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":25000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":26000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":67000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":67000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":67000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":-319000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-319000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-319000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-330000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":-11000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-11000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-322000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-322000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-322000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-322000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-322000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2015-01-01","end":"2015-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share","description":"Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.","units":{"USD/shares":[{"start":"2008-12-31","end":"2009-12-31","val":0.05,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":0.03,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":-0.58,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-0.56,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.01,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-0.48,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":0.08,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":0.01,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":0.03,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":0.06,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":0.01,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":0.01,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":0.07,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q2"},{"start":"2011-07-01","end":"2011-09-30","val":0.04,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.16,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-10-01","end":"2011-12-31","val":-0.02,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":-0.02,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":-0.05,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":-0.02,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":0.02,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":0.07,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":0.04,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0.26,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":0.11,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":-1.35,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-1.35,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-1.35,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":0.01,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-1.36,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":0.01,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-0.04,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":-0.04,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-0.04,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-1.31,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-1.31,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.04,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":0.04,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":0.04,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":0.04,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2015-01-01","end":"2015-12-31","val":0.04,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":0.03,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share","description":"Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":-0.48,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-0.39,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.16,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.16,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.03,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.08,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.04,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.07,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.07,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.03,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.11,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.11,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.12,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.3,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.3,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.3,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2015-01-01","end":"2015-12-31","val":0.04,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare":{"label":"Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share","description":"Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.","units":{"USD/shares":[{"start":"2010-01-01","end":"2010-12-31","val":-0.48,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-0.39,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-0.27,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":-0.01,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":0.16,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":0.16,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":0.03,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":0.08,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":0.08,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":0.04,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":0.07,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":0.07,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":0.04,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":0.11,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":0.11,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":0.12,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0.29,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0.29,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":0.29,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":0.03,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1.31,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2015-01-01","end":"2015-12-31","val":0.04,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeLossFromEquityMethodInvestments":{"label":"Income (Loss) from Equity Method Investments","description":"Amount of income (loss) for proportionate share of equity method investee's income (loss).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":-3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"IncomeTaxExaminationInterestExpense":{"label":"Income Tax Examination, Interest Expense","description":"The amount of estimated interest recognized in the period arising from income tax examinations.","units":{"USD":[{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2011-01-01","end":"2011-01-31","val":28000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2010Q4I"},{"end":"2011-01-31","val":28000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"}]}},"IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority":{"label":"Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority","description":"The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.","units":{"USD":[{"end":"2012-03-31","val":785000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":806000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":760000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"}]}},"IncomeTaxExaminationPenaltiesExpense":{"label":"Income Tax Examination, Penalties Expense","description":"The amount of estimated penalties recognized in the period arising from income tax examinations.","units":{"USD":[{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2011-01-01","end":"2011-01-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2010Q4I"},{"end":"2011-01-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2013-01-01","end":"2013-03-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q1"}]}},"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":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":58000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":33000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":52000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2010-10-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-10-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-10-01","end":"2010-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4"},{"start":"2011-01-01","end":"2011-03-31","val":34000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":27000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":88000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":88000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":54000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":54000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":143000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":143000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":58000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":28000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":114000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":114000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":14000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":49000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":38000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":35000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":29000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":26000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":26000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":142000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":92000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":93000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":57000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":57000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":57000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":103000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":103000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":103000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":185000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":185000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":185000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":167000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":215000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":32000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":30000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":30000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":280000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":280000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":65000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":65000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":65000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":65000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":319000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":319000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":319000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":39000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":39000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":91000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":91000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":45000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":45000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":45000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":45000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":125000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":125000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":34000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":34000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":34000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":138000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":138000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":30000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":30000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":57000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":27000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":27000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":106000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":49000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":49000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":129000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":23000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"IncomeTaxExpenseBenefitContinuingOperations":{"label":"Income Tax Expense (Benefit), Continuing Operations (Deprecated 2013-01-31)","description":"The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":104000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":25000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":58000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":33000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":33000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":52000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-10-01","end":"2010-12-31","val":-41000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":34000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":30000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":34000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":34000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-06-30","val":88000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":88000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-03-31","end":"2011-06-30","val":54000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":53000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":54000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":54000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":54000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":143000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":143000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":54000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":55000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":149000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":148000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4"},{"start":"2011-10-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":14000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":49000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":28000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":35000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":142000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":88000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q3"},{"start":"2012-07-01","end":"2012-09-30","val":93000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":93000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":138000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":156000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4"},{"start":"2012-10-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":135000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability":{"label":"Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability","description":"Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2013-01-01","end":"2013-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"}]}},"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":"2008-12-31","end":"2009-12-31","val":-76000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2010-12-31","end":"2011-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":227000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":227000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":228000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":228000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":228000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-14000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-13000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-12000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2012-12-31","val":69000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":69000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":69000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":69000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":243000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":225000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":225000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":234000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":274000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":274000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":274000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":274000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":8000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":7000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":13000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":12000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":11000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":111000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"IncomeTaxesReceivableNoncurrent":{"label":"Income Taxes Receivable, Noncurrent","description":"Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.","units":{"USD":[{"end":"2010-12-31","val":114000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":114000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":114000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":89000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":85000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":84000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":217000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":218000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":218000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":217000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":51000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":64000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":64000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":67000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":75000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":75000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":75000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":75000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":58000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":58000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":57000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":81000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":81000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":81000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":81000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":81000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":81000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":81000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":81000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":6000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance":{"label":"Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2013-01-01","end":"2013-03-31","val":101000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":101000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":101000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":101000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":101000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":101000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":101000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":101000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":101000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":101000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"IncomeTaxReconciliationDeductions":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Amount","description":"Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions.","units":{"USD":[{"start":"2014-01-01","end":"2014-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"}]}},"IncomeTaxReconciliationDeductionsMedicarePrescriptionDrugBenefitSubsidy":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Medicare Prescription Drug Benefit, Amount","description":"Amount of 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 deduction for Medicare prescription drug benefit subsidy.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"IncomeTaxReconciliationDeductionsOther":{"label":"Effective Income Tax Rate Reconciliation, Deduction, Other, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other deductions.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"IncomeTaxReconciliationDispositionOfAssets":{"label":"Effective Income Tax Rate Reconciliation, Disposition of Asset, Amount","description":"Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to disposition of asset. Includes, but is not limited to, intra-entity transfer of asset other than inventory.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2011-01-01","end":"2011-06-30","val":-4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":-4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":-4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-12-31","end":"2011-12-31","val":-4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate":{"label":"Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount","description":"The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":114000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":57000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":38000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":62000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":52000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":52000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":41000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":27000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":33000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":86000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":86000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":52000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":52000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":133000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":133000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":47000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":47000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":143000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":143000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":142000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":118000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":118000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":29000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":26000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":63000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":53000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":34000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":29000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":134000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":97000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":72000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":51000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":154000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":139000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":112000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":112000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":112000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-103000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":26000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-79000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":55000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":25000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":29000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":116000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":116000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":61000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":61000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":150000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":150000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":150000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":42000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":42000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":77000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":77000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":34000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":34000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":116000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":116000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":40000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":40000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":133000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":133000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":29000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":57000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":28000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":106000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":49000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":156000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeTaxReconciliationNondeductibleExpenseDepreciation":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible depreciation.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"IncomeTaxReconciliationNondeductibleExpenseLeases":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Leases, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible lease expense.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-5000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-5000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":21000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":21000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-5000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":-5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":16000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":-1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":13000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":64000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":70000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"IncomeTaxReconciliationNondeductibleExpenseRestructuringCharges":{"label":"Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible restructuring charges.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":-8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-8000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"IncomeTaxReconciliationOtherAdjustments":{"label":"Effective Income Tax Rate Reconciliation, Other Adjustments, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":-7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-6000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":4000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":-3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":-3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-6000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":-4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":-4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-5000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeTaxReconciliationPriorYearIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"}]}},"IncomeTaxReconciliationStateAndLocalIncomeTaxes":{"label":"Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount","description":"Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":19000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":-2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":5000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":11000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":11000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":19000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":19000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":22000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":22000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":23000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":23000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":4000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":4000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":19000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":19000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":21000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":10000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":6000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":21000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":11000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":11000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":27000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":27000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":27000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":7000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":7000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":15000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":15000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":7000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":7000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":21000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":21000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":6000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":23000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":6000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":10000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":18000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":8000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":27000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncomeTaxReconciliationTaxCredits":{"label":"Effective Income Tax Rate Reconciliation, Tax Credit, 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 credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2011-01-01","end":"2011-06-30","val":-17000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":17000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-17000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":17000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"}]}},"IncreaseDecreaseCashCollateralFromCounterparties":{"label":"Increase (Decrease) Cash Collateral from Counterparties","description":"The increase (decrease) during the reporting period in the amount of cash held either as collateral directly or provided to third parties associated with derivative instruments. Upon the occurrence of any specified triggering event or condition associated with the derivative, these amounts can be utilized to recover all or a portion of the amounts due or payable under the derivative.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":88000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":31000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":31000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInAccountsPayableAndAccruedLiabilities":{"label":"Increase (Decrease) in Accounts Payable and Accrued Liabilities","description":"The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-153000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":74000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":73000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":73000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":114000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":114000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-126000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-71000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-71000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-106000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-106000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-90000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-90000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-51000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-60000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-60000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-45000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-13000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":45000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":40000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":43000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-63000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-90000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-37000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-50000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-41000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-50000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":20000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":20000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":39000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":39000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-22000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-22000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":14000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-12000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInAccountsReceivable":{"label":"Increase (Decrease) in Accounts Receivable","description":"The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-136000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":20000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":39000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":113000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":113000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-87000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-63000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-63000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-86000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-86000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-135000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-135000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-56000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-56000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-56000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-78000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-78000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-60000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":26000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":90000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-59000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":14000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":55000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":55000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":41000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":41000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-8000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-18000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-18000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-48000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":195000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":174000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":165000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":56000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInAccruedIncomeTaxesPayable":{"label":"Increase (Decrease) in Income Taxes Payable","description":"The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":76000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":50000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-98000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-213000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":-49000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":34000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":-14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-247000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2013-01-01","end":"2013-03-31","val":-242000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable":{"label":"Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable","description":"The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":-213000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-213000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-213000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":34000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-14000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-27000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-247000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-184000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-184000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-133000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-133000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-122000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-122000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-122000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-160000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-160000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":604000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":604000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":614000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":614000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":618000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":618000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-182000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-182000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-182000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-483000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-483000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-135000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-135000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-138000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-138000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-173000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-173000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":11000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":32000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInInterestPayableNet":{"label":"Increase (Decrease) in Interest Payable, Net","description":"The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-03-31","val":31000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-09-30","val":34000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":34000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-03-31","val":33000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":33000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-09-30","val":38000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":38000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":37000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":37000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-09-30","val":37000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":37000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-03-31","val":34000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":34000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":33000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":33000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-03-31","val":28000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":29000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"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":"2008-12-31","end":"2009-12-31","val":-20000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":20000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":20000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":17000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":36000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":33000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":24000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":28000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":28000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":28000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":15000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":15000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-6000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-6000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":9000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"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":"2008-12-31","end":"2009-12-31","val":-7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-50000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-50000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-49000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-49000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-51000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-51000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-16000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-33000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-26000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-54000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-40000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-43000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-43000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-43000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-43000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-23000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-23000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-16000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-16000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-16000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-16000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-16000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":4000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-22000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-22000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-27000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-27000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":-5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-9000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-6000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-21000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInPrepaidExpense":{"label":"Increase (Decrease) in Prepaid Expense","description":"The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":17000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":28000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":8000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":34000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":34000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":14000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":36000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":11000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":30000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":31000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-10000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":11000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-6000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-6000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-17000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":26000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":26000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":27000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":27000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":3000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":15000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":7000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInPrepaidPensionCosts":{"label":"Increase (Decrease) in Prepaid Pension Costs (Deprecated 2017-01-31)","description":"The increase (decrease) during the reporting period in prepaid pension costs.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-95000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-34000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-50000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-68000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-68000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-68000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-68000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-16000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-26000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-26000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-39000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-53000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-53000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-15000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-15000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-33000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-33000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-49000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-49000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-65000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-14000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-32000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-32000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-49000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-49000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-65000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-65000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-65000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-14000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-14000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-23000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-23000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-36000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-36000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-48000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-20000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-36000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-56000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-76000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInPrepaidTaxes":{"label":"Increase (Decrease) in Prepaid Taxes","description":"Amount of increase (decrease) of consideration paid in advance for income and other taxes that provide economic benefits in future periods.","units":{"USD":[{"start":"2013-01-01","end":"2013-03-31","val":242000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":242000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":242000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":242000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":242000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":242000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":242000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":242000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"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":"2008-12-31","end":"2009-12-31","val":221000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":105000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":103000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":154000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":154000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":154000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":154000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-11000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":40000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":40000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":108000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":108000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":148000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":148000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":148000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":148000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":148000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":37000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":37000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":93000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":93000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":104000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":104000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":174000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":174000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":174000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":174000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":174000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":6000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":68000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":68000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":74000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":74000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":121000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":121000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":121000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-22000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-22000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":51000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":51000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":135000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":135000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":216000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":216000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-38000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":41000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":99000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":146000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2010-01-01","end":"2010-06-30","val":-3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-2000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":13000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":13000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":7000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-12000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"IncreaseDecreaseInRestrictedCashForOperatingActivities":{"label":"Increase (Decrease) in Restricted Cash for Operating Activities","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 operating activities. This may include cash restricted for regulatory purposes.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":102000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"}]}},"IncreaseDecreaseInSelfInsuranceReserve":{"label":"Increase (Decrease) in Self Insurance Reserve","description":"The increase (decrease) during the period in the carrying amount of accrued known and estimated losses incurred for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's' compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.","units":{"USD":[{"start":"2011-04-01","end":"2011-06-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"}]}},"InterestExpense":{"label":"Interest Expense","description":"Amount of the cost of borrowed funds accounted for as interest expense.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":340000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":172000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":89000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":240000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":68000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":306000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":306000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":292000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":281000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":62000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":125000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":125000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":63000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":63000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":189000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":189000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":64000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":64000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":254000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":254000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":253000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":242000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":242000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":65000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":65000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":65000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":65000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":198000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":190000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":68000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":66000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":265000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":266000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":256000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":256000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":256000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":137000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":137000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":70000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":70000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":205000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":205000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":68000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":68000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":273000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":273000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":273000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":65000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":65000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":132000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":132000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":67000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":67000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":200000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":200000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":68000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":68000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":268000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":268000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":68000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":139000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":71000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":210000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":71000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":280000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"InterestPaidCapitalized":{"label":"Interest Paid, Capitalized, Investing Activities","description":"Amount of cash paid for interest capitalized, classified as investing activity.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":9000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"InterestPaidNet":{"label":"Interest Paid, Excluding Capitalized Interest, Operating Activities","description":"Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":353000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":310000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":310000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":310000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":310000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":240000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":240000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":240000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":240000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":240000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":253000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":253000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":253000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":253000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":253000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":260000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":260000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":260000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":257000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":268000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":45000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":45000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":45000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":47000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":80000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":47000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":79000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":50000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":84000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":47000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":84000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":52000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":83000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":47000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":47000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":47000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":47000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":47000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":81000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":49000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":80000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":47000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":47000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":47000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":47000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":47000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":75000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":50000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":76000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":49000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"InterestPayableCurrentAndNoncurrent":{"label":"Interest Payable","description":"Amount of interest payable on debt, including, but not limited to, trade payables.","units":{"USD":[{"end":"2009-12-31","val":13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4I"},{"end":"2010-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010Q4I"},{"end":"2010-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"}]}},"InterestReceivableCurrent":{"label":"Interest Receivable, Current","description":"Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"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":126000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":126000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":126000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":130000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":146000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":132000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":132000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":132000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":132000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":132000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":125000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":125000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":129000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":149000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":168000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":156000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":155000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":153000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":153000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":153000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":153000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":153000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":153000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":161000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":169000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":148000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":148000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":148000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":148000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":148000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":142000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":149000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":152000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":141000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":141000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":141000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":141000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":141000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":148000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":150000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":142000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":141000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"InvestmentIncomeInterest":{"label":"Investment Income, Interest","description":"Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"}]}},"InvestmentIncomeInterestAndDividend":{"label":"Investment Income, Interest and Dividend","description":"Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-12-31","end":"2011-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"}]}},"InvestmentsAndOtherNoncurrentAssets":{"label":"Investments and Other Noncurrent Assets","description":"Amount of investments, and noncurrent assets classified as other.","units":{"USD":[{"end":"2011-12-31","val":5252000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":5252000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":5681000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":5681000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"}]}},"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":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"}]}},"LeveragedLeasesIncomeStatementIncomeFromLeveragedLeases":{"label":"Leveraged Leases, Income Statement, Income from Leveraged Leases","description":"Pretax lease income allocated in proportionate amounts from unearned income.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":54000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":26000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":13000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":41000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":55000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":55000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":55000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":14000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":28000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":28000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":14000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":14000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":35000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":35000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":7000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":7000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":55000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":55000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":55000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":26000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":26000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":13000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":13000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":39000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":13000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":50000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":50000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":7000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"LeveragedLeasesIncomeStatementIncomeTaxExpenseOnLeveragedLeases":{"label":"Leveraged Leases, Income Statement, Income Tax Expense on Leveraged Leases","description":"The tax effect from the current year income from arrangements meeting the criteria for classification as a leveraged lease.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":16000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":14000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":4000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":7000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":7000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":-3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":7000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":48000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-43000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"LeveragedLeasesIncomeStatementNetIncomeFromLeveragedLeases":{"label":"Leveraged Leases, Income (Loss)","description":"The total recognized during the period for income on leases meeting the criteria for classification as leveraged leases.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":19000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":30000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":39000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":18000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":18000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":28000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":28000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":38000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":38000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":38000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":12000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":12000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":22000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":22000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":32000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":40000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":40000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":-320000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-323000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureDeferredIncome":{"label":"Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Deferred Income","description":"The estimated portion of pretax income and investment tax credit remaining to be allocated to income over the lease term.","units":{"USD":[{"end":"2012-12-31","val":615000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q4I"},{"end":"2012-12-31","val":615000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":615000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":973000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":56000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"}]}},"LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureDeferredTaxesArisingFromLeveragedLeases":{"label":"Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Deferred Taxes Arising from Leveraged Leases","description":"Taxes arising from arrangements meeting the criteria for classification as leveraged leases due to timing differences between accounting and tax income recognition.","units":{"USD":[{"end":"2010-12-31","val":816000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":816000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":816000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":725000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":742000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":793000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":797000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":816000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":738000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":756000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":95000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":83000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"}]}},"LeveragedLeasesNetInvestmentInLeveragedLeasesDisclosureInvestmentInLeveragedLeasesNet":{"label":"Leveraged Leases, Net Investment in Leveraged Leases Disclosure, Investment in Leveraged Leases, Net","description":"The net investment in arrangements meeting the criteria for classification as leveraged leases including deferred taxes.","units":{"USD":[{"end":"2010-12-31","val":607000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":607000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":607000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":604000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":594000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011Q4I"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":556000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":565000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":559000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":488000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":481000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q4I"},{"end":"2012-12-31","val":481000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":481000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":481000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":774000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":84000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"}]}},"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":14480000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":14480000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":14480000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":14238000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":14570000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":14910000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":15001000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":15001000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":15188000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":15421000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":15622000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":15776000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":15788000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":15794000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":15655000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":14989000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14912000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":14848000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":15004000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15070000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":15298000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":15667000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":15589000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":16027000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":16132000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":16557000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":16326000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":1797000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1797000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1797000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1564000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1683000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1861000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1861000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1861000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1861000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1861000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1936000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1936000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2095000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1876000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2003000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2527000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2537000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":2543000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":2543000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2543000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2543000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2543000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2883000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2424000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2378000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2313000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2313000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":2313000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":2313000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":2313000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1912000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1767000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1809000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2065000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2065000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":2065000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":2065000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":2056000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2157000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2033000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2340000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2308000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LiabilitiesFairValueDisclosure":{"label":"Financial and Nonfinancial Liabilities, Fair Value Disclosure","description":"Fair value of financial and nonfinancial obligations.","units":{"USD":[{"end":"2012-03-31","val":4954000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5416000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5437000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5358000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":5358000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":43000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":5358000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":43000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":5358000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":5358000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5534000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":44000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":43000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":5146000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":5146000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":5146000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":5146000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":5146000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5688000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":5812000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":5822000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":5846000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":5846000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":5846000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":5846000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":5846000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":6105000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":5848000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5863000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":5713000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LiabilitiesOfAssetsHeldForSale":{"label":"Liabilities of Assets Held-for-sale (Deprecated 2014-01-31)","description":"Liability (such as a mortgage) related to a disposal group that is held for sale and anticipated to be sold in less than one year. The liability is expected to be discharged as part of the plan of sale for the asset.","units":{"USD":[{"end":"2011-12-31","val":154000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":151000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":41000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":41000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":41000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":12000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"LiabilitiesRelatedToInvestmentContractsFairValueDisclosure":{"label":"Liabilities Related to Investment Contracts, Fair Value Disclosure","description":"Fair value portion of liability related to investment contracts for example, but not limited to, guaranteed investment contract or annuities.","units":{"USD":[{"end":"2010-12-31","val":30000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"}]}},"LiabilityForUncertainTaxPositionsCurrent":{"label":"Liability for Uncertainty in Income Taxes, Current","description":"Amount recognized for uncertainty in income taxes classified as current.","units":{"USD":[{"end":"2010-12-31","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":379000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":377000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":378000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":397000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":397000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":397000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":397000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":397000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":6000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":6000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":6000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":6000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":6000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":6000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LiabilityForUncertainTaxPositionsNoncurrent":{"label":"Liability for Uncertainty in Income Taxes, Noncurrent","description":"Amount recognized for uncertainty in income taxes classified as noncurrent.","units":{"USD":[{"end":"2007-12-31","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2007Q4I"},{"end":"2008-12-31","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2008Q4I"},{"end":"2009-12-31","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2009Q4I"},{"end":"2010-12-31","val":148000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":148000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":148000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":41000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":49000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":32000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":27000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":28000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":29000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":28000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":28000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":28000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":28000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":6000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":6000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":6000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"}]}},"LineOfCreditFacilityCurrentBorrowingCapacity":{"label":"Line of Credit Facility, Current Borrowing Capacity","description":"Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.","units":{"USD":[{"end":"2011-12-31","val":750000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":283000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"},{"end":"2012-03-31","val":750000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":750000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":750000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-09-30","val":650000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-09-30","val":650000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q3I"},{"end":"2012-12-31","val":384000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":650000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-03-31","val":750000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":750000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":750000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":750000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-03-31","val":750000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":750000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":750000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":750000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":750000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"LineOfCreditFacilityMaximumBorrowingCapacity":{"label":"Line of Credit Facility, Maximum Borrowing Capacity","description":"Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.","units":{"USD":[{"end":"2011-06-30","val":1500000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-08-01","val":1500000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2011-08-31","val":1500000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1500000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1500000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1500000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1500000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2012-09-30","val":1500000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-09-30","val":1500000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1500000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1500000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1500000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1500000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1500000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1500000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1500000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1500000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1500000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1500000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"LitigationSettlementExpense":{"label":"Litigation Settlement, Expense","description":"Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":875000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-03-01","end":"2014-03-31","val":875000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-03-01","end":"2014-03-31","val":875000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-03-01","end":"2014-03-31","val":875000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-03-01","end":"2014-03-31","val":875000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1I"},{"start":"2014-01-01","end":"2014-06-30","val":875000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-09-30","val":875000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":875000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"LitigationSettlementGross":{"label":"Litigation Settlement, Gross (Deprecated 2013-01-31)","description":"This element represents the gross amount awarded, to be received by, or to be remitted to the entity in settlement of litigation occurring during the period.","units":{"USD":[{"start":"2011-05-01","end":"2011-05-31","val":50000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"LongTermCommercialPaperCurrent":{"label":"Long-term Commercial Paper, Current","description":"Carrying value as of the balance sheet date of the current portion of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer).","units":{"USD":[{"end":"2011-12-31","val":465000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":465000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":465000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":465000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":521000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":365000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":293000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":264000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":264000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":264000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"LongTermDebt":{"label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2010-12-31","val":3629000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"LongTermDebtAndCapitalLeaseObligations":{"label":"Long-term Debt and Lease Obligation","description":"Amount of long-term debt and lease obligation, classified as noncurrent.","units":{"USD":[{"end":"2010-12-31","val":4062000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":4062000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4062000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4205000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4196000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4180000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4170000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4562000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4449000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3986000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4224000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4123000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4106000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4337000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4337000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4337000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4337000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4337000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4726000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4814000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4938000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4670000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4670000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4866000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"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":"2010-12-31","val":75000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":75000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":36000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":111000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":113000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":73000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":-73000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":-73000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":-73000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-529000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":-529000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":-529000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":529000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":403000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":403000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":366000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":366000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":294000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LongTermDebtFairValue":{"label":"Long-term Debt, Fair Value","description":"The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.","units":{"USD":[{"end":"2014-12-31","val":5583000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":5523000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive":{"label":"Long-Term Debt, Maturity, after Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2011-12-31","val":2462000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2701000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2701000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2701000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2014-12-31","val":3836000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":4366000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":110000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":568000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":568000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":568000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":444000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":410000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":340000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":338000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":135000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":135000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":135000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":286000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":30000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":20000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":409000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":338000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":338000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":338000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":133000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":285000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":30000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":334000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":409000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":409000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":409000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":338000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":131000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":285000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":558000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":334000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":334000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":334000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":409000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":340000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":131000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":3629000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":3629000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3629000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3795000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3794000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3794000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3794000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4203000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4100000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":3648000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":3898000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":3811000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":3805000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4053000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4053000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4053000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4053000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4053000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4452000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4557000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4691000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4441000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4441000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4441000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4441000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4397000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4649000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4848000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4845000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4656000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LongTermNotesPayable":{"label":"Notes Payable, Noncurrent","description":"Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.","units":{"USD":[{"end":"2010-12-31","val":3665000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":3665000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":3665000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":3866000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":3866000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":3867000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":3868000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4213000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4177000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4177000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4426000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-09-30","val":4457000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4456000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4456000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4456000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4456000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4456000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4856000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4873000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4909000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4807000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4807000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4807000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4807000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4807000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":5015000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":5115000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5099000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4999000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LongTermTransitionBond":{"label":"Long-term Transition Bond, Noncurrent","description":"Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the noncurrent portion.","units":{"USD":[{"end":"2010-12-31","val":332000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":332000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":332000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":314000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":306000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":295000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":285000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":276000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":267000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":256000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":246000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":236000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":226000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":214000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":214000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":214000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":214000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":214000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":204000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":193000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":183000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":171000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":171000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":171000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":171000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":170000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":159000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":148000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":138000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":124000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LongtermTransitionBondCurrentAndNoncurrent":{"label":"Long-term Transition Bond","description":"Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the current and noncurrent portions. The initial maturity is beyond one year or beyond the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":367000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":367000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":367000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":350000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":343000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":332000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":323000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":314000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":306000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":295000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":285000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":295000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":267000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":255000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":255000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":255000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":255000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":255000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":246000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":235000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":226000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":215000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":215000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":215000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":215000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":215000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":203000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":193000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":184000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":171000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LossContingencyAccrualAtCarryingValue":{"label":"Loss Contingency Accrual","description":"Amount of loss contingency liability.","units":{"USD":[{"end":"2013-12-31","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-03-31","val":32000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":32000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":54000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-10-22","val":21700000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-10-22","val":21700000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":33000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":22000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":12000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":12000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"LossContingencyDamagesPaidValue":{"label":"Loss Contingency, Damages Paid, Value","description":"Amount of damages paid to the plaintiff in the legal matter.","units":{"USD":[{"start":"2014-03-01","end":"2014-03-31","val":250000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-03-01","end":"2014-03-31","val":250000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-03-01","end":"2014-03-31","val":250000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-03-01","end":"2014-03-31","val":250000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1I"},{"start":"2014-01-01","end":"2014-06-30","val":250000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-09-30","val":250000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":250000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"LossContingencyDamagesSoughtValue":{"label":"Loss Contingency, Damages Sought, Value","description":"The value (monetary amount) of the award the plaintiff seeks in the legal matter.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2014-01-01","end":"2014-03-31","val":250000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"}]}},"LossContingencyNumberOfPlaintiffs":{"label":"Loss Contingency, Number of Plaintiffs","description":"Number of plaintiffs that have filed claims pertaining to a loss contingency.","units":{"Plaintiff":[{"start":"2012-01-01","end":"2012-12-31","val":448,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":448,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":448,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"LossContingencyPendingClaimsNumber":{"label":"Loss Contingency, Pending Claims, Number","description":"Number of pending claims pertaining to a loss contingency.","units":{"Cases":[{"end":"2012-12-31","val":90,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2012-12-31","val":90,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"}]}},"MandatorilyRedeemablePreferredStockFairValueDisclosure":{"label":"Mandatorily Redeemable Preferred Stock, Fair Value Disclosure","description":"Fair value portion of shares that an entity is required to redeem for cash or other assets at a fixed or determinable date or upon the occurrence of an event.","units":{"USD":[{"end":"2010-12-31","val":5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"MinorityInterest":{"label":"Stockholders' Equity Attributable to Noncontrolling Interest","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).","units":{"USD":[{"end":"2010-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"MinorityInterestOwnershipPercentageByParent":{"label":"Noncontrolling Interest, Ownership Percentage by Parent","description":"The parent entity's interest in net assets of the subsidiary, expressed as a percentage.","units":{"pure":[{"end":"2010-12-31","val":1,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011Q4I"}]}},"NetCashProvidedByUsedInDiscontinuedOperations":{"label":"Net Cash Provided by (Used in) Discontinued Operations","description":"Increase (decrease) in cash associated with the entity's discontinued operations.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":-16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2008-12-31","end":"2009-12-31","val":-84000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-36000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-1511000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-1556000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-1556000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-1556000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-1556000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-36000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-77000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-77000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":22000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":22000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":149000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":149000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":213000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":213000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":366000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":366000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":248000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":248000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":293000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":542000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":572000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-58000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":46000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-179000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":170000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-88000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-88000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":100000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-12-31","val":363000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":233000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2012-12-31","val":293000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-46000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-170000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-88000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":100000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":288000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":288000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":329000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":329000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":363000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":205000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":233000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":491000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"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":"2008-12-31","end":"2009-12-31","val":-860000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-473000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":949000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":718000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":718000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":718000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":718000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-164000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-220000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-220000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-471000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-471000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-747000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-747000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-747000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-747000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-747000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-281000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-281000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-560000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-560000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-662000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-662000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-969000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-969000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-969000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-969000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-296000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-296000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":83000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":-55000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":-411000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-411000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-285000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-12-31","val":-1226000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-1161000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2012-12-31","val":-969000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":83000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-55000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-411000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-285000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-546000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-546000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-844000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-844000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-1226000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-235000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-552000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-835000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"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":"2008-12-31","end":"2009-12-31","val":606000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":499000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":560000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":813000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":813000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":813000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":813000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":197000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":334000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":334000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":531000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":531000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":686000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":686000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":686000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":686000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":686000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":23000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":23000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":124000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":124000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":419000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":419000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":592000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":592000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":592000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":592000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-146000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-176000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-35000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":47000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":267000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":258000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":497000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":497000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":284000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-12-31","val":854000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":939000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2012-12-31","val":592000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-47000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":258000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":497000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":284000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":419000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":419000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":749000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":749000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":854000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":157000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":339000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":601000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"}]}},"NetIncomeLoss":{"label":"Net Income (Loss) Attributable to Parent","description":"The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":235000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":36000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":-18000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":-54000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":-54000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":17000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":17000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":32000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":33000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":64000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":64000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":64000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":64000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":64000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":158000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":158000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":94000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":94000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":238000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":238000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":257000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":257000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":19000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":242000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":242000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":285000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":43000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":43000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":43000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-430000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-388000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-388000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":42000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-270000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-270000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":118000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":118000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":118000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":118000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-212000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-212000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-212000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":58000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":58000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":75000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":128000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":128000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":207000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":207000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":79000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":79000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":79000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":79000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":242000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":242000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":35000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":35000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":53000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":53000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":53000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-03-31","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":106000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":53000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":53000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-04-01","end":"2015-06-30","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":197000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":91000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":327000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":130000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"NonoperatingGainsLosses":{"label":"Nonoperating Gains (Losses)","description":"The aggregate amount of gains or losses resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth).","units":{"USD":[{"start":"2010-12-31","end":"2011-12-31","val":-5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"}]}},"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":"2008-12-31","end":"2009-12-31","val":-321000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-162000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":-84000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-359000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-197000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-474000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-474000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-460000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-449000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-53000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":-53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-53000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":-50000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-106000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-106000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-53000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-53000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":-53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":-53000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":-50000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-166000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-166000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":-60000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-60000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":-60000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":-60000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":-57000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-228000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-228000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-228000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-217000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-217000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":-62000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":-62000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":-60000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":-57000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-57000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":-57000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":-57000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":-54000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":-54000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-112000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-112000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-55000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-55000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":-55000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-55000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":-52000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":-52000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":-171000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-163000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-59000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-59000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":-60000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":-57000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-57000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":-57000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-229000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-230000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-220000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-220000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-220000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":-58000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":-58000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":-57000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":-57000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":-59000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":-59000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":-59000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":-59000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-121000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-121000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-62000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-62000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":-62000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":-62000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-181000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-181000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":-60000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":-60000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":-60000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":-60000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-239000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-239000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-239000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":-58000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":-58000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":-52000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-52000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":-52000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":-52000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-105000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-105000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-53000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-53000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":-53000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-158000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-158000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":-53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-224000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-224000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":-66000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":-66000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":-59000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":-59000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-118000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":-59000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":-59000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-161000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-43000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-43000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-226000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":-65000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"NotesPayableFairValueDisclosure":{"label":"Notes Payable, Fair Value Disclosure","description":"Fair value portion of notes payable.","units":{"USD":[{"end":"2010-12-31","val":4045000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":4045000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4045000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4317000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4520000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4577000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4569000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":5040000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":5068000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":5004000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":5194000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":5054000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4953000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4850000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4850000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4850000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4850000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4850000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":5402000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":5528000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":5546000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":5583000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":5583000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":5583000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":5583000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q4I"},{"end":"2015-03-31","val":5871000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":5632000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5658000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"}]}},"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":"2013-01-01","end":"2013-12-31","val":3998000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1157000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":966000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3270000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":1147000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":1147000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":4274000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":1004000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":1229000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":1001000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":3409000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":1179000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":1179000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":4350000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":941000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"OperatingIncomeLoss":{"label":"Operating Income (Loss)","description":"The net result for the period of deducting operating expenses from operating revenues.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":648000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":131000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":324000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":193000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":193000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":536000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":212000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":212000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":624000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":624000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":577000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":526000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":88000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":149000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":149000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":149000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":139000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":126000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":351000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":351000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":202000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":202000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":202000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":202000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":200000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":148000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":546000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":546000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":195000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":195000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":195000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":195000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":192000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":186000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":637000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":637000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":634000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":553000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":553000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":91000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":91000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":103000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":93000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":139000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":139000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":131000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":126000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":113000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":113000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":291000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":263000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":152000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":152000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":137000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":136000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":124000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":125000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":555000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":439000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":264000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":264000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":252000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":201000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":201000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":201000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":670000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":627000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":541000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":541000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":541000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":115000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":113000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":103000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":102000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":-236000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":133000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":133000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":133000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-104000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":278000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":132000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":145000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":145000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":145000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":513000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":513000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":235000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":235000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":235000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":235000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":668000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":668000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":668000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":155000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":155000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":173000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":173000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":173000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":173000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":324000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":324000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":151000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":151000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":151000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":151000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":490000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":490000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":166000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":166000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":166000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":166000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":604000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":604000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":114000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":114000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":142000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":142000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":281000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":139000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":139000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":464000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":183000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":183000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":673000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":209000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"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":"2011-12-31","val":39000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":43000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":43000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":44000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":45000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":52000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":29000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":35000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":37000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":37000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":32000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":36000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":38000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":39000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":47000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2011-12-31","val":36000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":40000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":42000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":43000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OperatingLeasesFutureMinimumPaymentsDueThereafter":{"label":"Operating Leases, Future Minimum Payments, Due Thereafter","description":"Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.","units":{"USD":[{"end":"2011-12-31","val":359000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":369000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":369000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":369000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":342000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":329000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":304000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OperatingLeasesRentExpenseNet":{"label":"Operating Leases, Rent Expense, Net","description":"Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":45000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":45000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":45000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":45000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":45000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":46000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":46000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":46000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":46000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":46000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":54000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":54000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":54000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":59000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":59000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":60000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherAssetImpairmentCharges":{"label":"Other Asset Impairment Charges","description":"The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"}]}},"OtherAssetsCurrent":{"label":"Other Assets, Current","description":"Amount of current assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":51000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":128000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":131000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":120000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":120000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":120000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":120000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":120000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":190000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":190000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":122000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":157000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":153000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":133000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":76000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":81000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":150000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":81000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":150000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":81000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":66000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":81000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":74000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":53000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":54000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":54000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":54000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":54000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":62000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":82000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":86000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":63000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"OtherAssetsNoncurrent":{"label":"Other Assets, Noncurrent","description":"Amount of noncurrent assets classified as other.","units":{"USD":[{"end":"2010-12-31","val":169000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":169000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":169000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":170000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":169000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":163000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":165000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":166000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":164000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":163000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":174000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":164000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":158000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":163000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":163000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":163000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":163000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":163000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":166000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":168000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":167000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":166000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":166000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":166000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":166000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":121000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":168000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":165000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":178000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":129000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OtherComprehensiveIncomeAmortizationOfDefinedBenefitPlanNetPriorServiceCostCreditRecognizedInNetPeriodicBenefitCostBeforeTax":{"label":"Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax (Deprecated 2012-01-31)","description":"The change in other comprehensive income due to the amortization of the net prior service costs (credit) into net periodic pension costs.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-4000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":-5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":-7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostCreditArisingDuringPeriodBeforeTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax","description":"Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"OtherComprehensiveIncomeDerivativesQualifyingAsHedgesBeforeTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax (Deprecated 2012-01-31)","description":"Pre tax change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges, net of reclassifications into earnings during the period. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. Includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":37000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":50000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":26000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":22000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":64000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":81000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeLossAmortizationPensionAndOtherPostretirementBenefitPlansNetPriorServiceCostRecognizedInNetPeriodicBenefitCostBeforeTax":{"label":"Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Benefit Cost, before Tax (Deprecated 2013-01-31)","description":"Before tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"}]}},"OtherComprehensiveIncomeLossBeforeTax":{"label":"Other Comprehensive Income (Loss), before Tax","description":"Amount before tax, after reclassification adjustments of other comprehensive income (loss).","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":18000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":18000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":44000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":17000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":59000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":71000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":20000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":28000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":25000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-19000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":8000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"}]}},"OtherComprehensiveIncomeLossBeforeTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), before Tax (Deprecated 2012-01-31)","description":"This element represents Other Comprehensive Income or Loss, Before Tax, for the period. The pretax revenues, expenses, gains, and losses that under generally accepted accounting principles are included in comprehensive income, but excluded from net income. Includes the entity's proportionate share of an investee's equity adjustments for other comprehensive income. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":29000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":16000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":56000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":53000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":27000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":44000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":17000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":59000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":71000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":14000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax":{"label":"Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax","description":"Amount before tax, 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":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":48000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":22000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":64000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2011"},{"start":"2012-01-01","end":"2012-06-30","val":25000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":31000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012"}]}},"OtherComprehensiveIncomeLossNetOfTax":{"label":"Other Comprehensive Income (Loss), Net of Tax","description":"Amount after tax and reclassification adjustments of other comprehensive income (loss).","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-06-30","val":26000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":35000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":43000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":4000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":16000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-04-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":5000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease":{"label":"Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)","description":"This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":17000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":33000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":9000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":32000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":16000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":26000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":35000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":9000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":43000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax","description":"Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":4000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":-2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":-13000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-20000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax","description":"Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":-1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":0,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-12-31","val":-1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":0,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":-1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":-1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":-1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax","description":"Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":135000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax":{"label":"Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax","description":"Amount before tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":-20000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":5000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":7000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax (Deprecated 2013-01-31)","description":"Before tax amount of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":135000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":135000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-06-30","val":46000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":62000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":81000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":25000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":31000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":39000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax (Deprecated 2013-01-31)","description":"Tax effect of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":9000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":25000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":7000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-06-30","val":11000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":13000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"}]}},"OtherComprehensiveIncomeLossTax":{"label":"Other Comprehensive Income (Loss), Tax","description":"Amount of tax expense (benefit) allocated to other comprehensive income (loss).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":23000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":7000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":21000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":21000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":11000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":18000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":18000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":24000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":24000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":28000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":28000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-4000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":6000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":-4000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":12000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":-1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":1000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":3000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"}]}},"OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax":{"label":"Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax (Deprecated 2012-01-31)","description":"Pre tax reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":166000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":87000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":38000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":110000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":23000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":135000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":27000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":46000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":62000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":81000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"}]}},"OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax":{"label":"Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax","description":"Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-129000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-78000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":12000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":-116000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":-38000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":-100000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-100000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-100000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-100000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-1000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":3000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"OtherCostOfServices":{"label":"Other Cost of Services (Deprecated 2018-01-31)","description":"Other costs incurred and are directly related to services rendered by an entity during the reporting period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":85000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":60000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":35000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":98000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":38000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":140000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":140000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":140000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":140000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":43000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":86000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":86000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":43000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":43000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":128000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":128000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":42000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":42000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":172000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":172000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":172000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":172000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":172000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":45000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":47000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":94000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":94000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":49000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":49000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":132000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":132000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":38000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":38000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":170000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":170000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":170000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":170000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":170000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":40000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":40000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":75000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":75000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":35000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":35000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":112000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":112000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":37000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":37000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":146000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":46000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":107000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":107000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":61000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":61000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":161000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":161000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":54000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":54000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":207000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":207000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":45000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":94000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":49000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":131000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":37000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":175000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherDeferredCreditsNoncurrent":{"label":"Other Deferred Credits, Noncurrent","description":"Amount of unearned revenue or income classified as other, expected to be taken into income after one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":193000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":193000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":195000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-06-30","val":194000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":196000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":202000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OtherInterestAndDividendIncome":{"label":"Other Interest and Dividend Income","description":"Amount, after discount, accretion and premium amortization, of interest income and dividend income classified as other.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2014-01-01","end":"2014-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"}]}},"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":321000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":321000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":321000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":254000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":255000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":274000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":274000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":274000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":274000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":274000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":273000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":273000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":259000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":258000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":274000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":273000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":273000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":272000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":272000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":272000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":272000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":272000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":256000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":253000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":263000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":276000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":277000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":277000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":277000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":277000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":303000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":304000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":341000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":314000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":314000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":314000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":314000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":305000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":300000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":284000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":274000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":287000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":175000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":175000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":175000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":180000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":181000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":191000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":179000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":182000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":189000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":191000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":195000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":192000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":192000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":189000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":189000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":189000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":189000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":189000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":185000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":187000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":187000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":193000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":193000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4670000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4670000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4625000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":194000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":5045000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":5032000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4823000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OtherLongTermDebt":{"label":"Other Long-term Debt","description":"Amount of long-term debt classified as other.","units":{"USD":[{"end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":75000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":112000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":114000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":49000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":118000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":569000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":569000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":756000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":695000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":446000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":446000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":446000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":446000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":446000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":449000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":371000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":279000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":431000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":431000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q4I"},{"end":"2015-03-31","val":412000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"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":15000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":15000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":14000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":13000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":13000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":13000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":12000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":11000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":11000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":10000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":10000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":9000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":8000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q4I"},{"end":"2015-03-31","val":8000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"OtherNoncashIncomeExpense":{"label":"Other Noncash Income (Expense)","description":"Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":16000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":20000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":20000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":19000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":19000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":4000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":13000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":19000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":19000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":16000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":4000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":5000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":11000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":11000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":15000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":7000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":6000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherNonoperatingExpense":{"label":"Other Nonoperating Expense","description":"Amount of expense related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":78000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-03-31","end":"2010-06-30","val":84000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-07-01","end":"2010-09-30","val":197000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":474000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-10-01","end":"2010-12-31","val":115000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":53000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-03-31","end":"2011-06-30","val":53000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-07-01","end":"2011-09-30","val":60000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":228000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-10-01","end":"2011-12-31","val":62000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4"}]}},"OtherNonoperatingIncome":{"label":"Other Nonoperating Income","description":"Amount of income related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":16000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":11000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":17000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":22000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":22000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":22000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":22000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":20000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":27000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":27000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":7000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":7000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":33000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":33000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":32000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":32000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":32000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":27000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":27000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":9000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":8000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":24000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":24000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":32000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":32000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":13000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":13000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":26000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":13000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":42000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":15000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":44000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"}]}},"OtherNonoperatingIncomeExpense":{"label":"Other Nonoperating Income (Expense)","description":"Amount of income (expense) related to nonoperating activities, classified as other.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":9000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":19000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":23000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":18000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":10000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":27000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":36000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":24000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":34000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":32000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":13000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":26000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":26000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":13000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":13000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":42000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":42000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":15000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":15000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":44000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":44000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":21000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":12000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":49000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":28000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":54000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"OtherNonrecurringExpense":{"label":"Other Nonrecurring Expense","description":"Amount of other expense that is infrequent in occurrence or unusual in nature.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-40000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-03-31","end":"2010-06-30","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":9000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":9000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent":{"label":"Liability, Other Postretirement Defined Benefit Plan, Noncurrent","description":"Amount of liability, recognized in statement of financial position, for defined benefit other postretirement plan, classified as noncurrent. Excludes pension plan.","units":{"USD":[{"end":"2010-12-31","val":429000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":429000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":429000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":412000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":413000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":469000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":467000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":446000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":450000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":454000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":451000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":434000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":255000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":206000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":206000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":206000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":206000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":206000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":203000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":173000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":177000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":265000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":265000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":265000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":265000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":265000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":264000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":238000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":236000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":215000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"OtherTaxCarryforwardDeferredTaxAsset":{"label":"Other Tax Carryforward, Deferred Tax Asset (Deprecated 2013-01-31)","description":"The cumulative amount of future tax effects arising from the unused tax credit carryforward attributable to some other tax carryforward (not otherwise stated) that cannot be utilized on the tax return during the period and that may be carried forward and are expected to more likely than not be used to reduce taxable income or taxes payable in future periods.","units":{"USD":[{"end":"2009-12-31","val":7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q4I"}]}},"OtherTaxExpenseBenefit":{"label":"Other Tax Expense (Benefit)","description":"Amount of other income tax expense (benefit).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":358000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":427000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":427000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":427000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":427000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":445000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":445000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":445000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":445000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":445000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":426000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":422000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":422000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":422000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":407000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":407000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":421000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PaymentOfFinancingAndStockIssuanceCosts":{"label":"Payment of Financing and Stock Issuance Costs","description":"The total of the cash outflow during the period which has been paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt and the cost incurred directly for the issuance of equity securities.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":7000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":2000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":7000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":16000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":16000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":16000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":17000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":17000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":23000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":23000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":23000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":7000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":7000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":10000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":10000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":6000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PaymentsForProceedsFromOtherInvestingActivities":{"label":"Payments for (Proceeds from) Other Investing Activities","description":"Amount of cash (inflow) outflow from investing activities classified as other.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":1000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":-2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-7000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-7000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":7000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":10000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":9000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-5000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-2000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-12-31","val":-3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-3000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-3000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-2000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-14000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PaymentsForRemovalCosts":{"label":"Payments for Removal Costs","description":"Cash outflow related to disposal costs of plants, whether by demolishing, dismantling, abandoning, sale, and so forth during the period.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2011-01-01","end":"2011-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":2000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"PaymentsForRepurchaseOfRedeemablePreferredStock":{"label":"Payments for Repurchase of Redeemable Preferred Stock","description":"The cash outflow for reacquisition of callable preferred stock.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":6000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":6000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":6000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2008-12-31","end":"2009-12-31","val":238000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":120000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":181000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":241000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":241000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":61000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":122000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":122000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":183000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":183000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":244000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":244000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":61000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":61000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":123000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":123000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":185000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":185000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":248000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":67000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":134000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":134000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":201000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":201000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":270000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":68000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":68000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":136000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":136000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":204000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":204000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":272000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":272000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":68000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":137000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":206000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":275000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PaymentsToAcquirePropertyPlantAndEquipment":{"label":"Payments to Acquire Property, Plant, and Equipment","description":"The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":664000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":364000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":551000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":802000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":802000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":802000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":802000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":171000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":387000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":387000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":639000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":639000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":941000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":941000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":941000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":941000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":941000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":291000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":291000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":589000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":589000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":888000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":888000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1216000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":296000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":296000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":616000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":616000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":943000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":943000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":1310000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":1310000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":1310000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":282000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":282000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":553000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":553000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":846000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":846000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":1223000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1223000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":246000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":562000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":855000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":1230000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PensionAndOtherPostretirementBenefitContributions":{"label":"Payment for Pension and Other Postretirement Benefits","description":"Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":46000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":19000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":70000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":24000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":26000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":56000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":30000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":84000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":28000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2013-01-01","end":"2013-03-31","val":25000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"}]}},"PensionContributions":{"label":"Payment for Pension Benefits","description":"Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":300000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":100000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":100000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":100000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":100000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":100000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":110000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":110000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":110000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":110000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":110000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":110000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":110000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":110000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":110000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":110000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":200000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":200000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":200000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":200000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":200000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":200000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":60000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":60000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":20000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-03-31","val":20000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":120000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":120000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":60000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":60000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":120000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":120000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":120000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":120000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":120000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"PlantHeldForFutureUseAmount":{"label":"Plant Held for Future Use Amount","description":"Discloses the period end amount of plants held for future use and whether such amount is included in the utility's rate base.","units":{"USD":[{"end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"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":"2010-12-31","val":0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0.01,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"PreferredStockRedemptionPricePerShare":{"label":"Preferred Stock, Redemption Price Per Share","description":"The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.","units":{"USD/shares":[{"end":"2014-06-30","val":10000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"}]}},"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":"2010-12-31","val":40000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":40000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"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":"2010-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"PrepaidExpenseAndOtherAssetsCurrent":{"label":"Prepaid Expense and Other Assets, Current","description":"Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2014-12-31","val":63000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":63000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":63000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":63000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":67000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":79000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":87000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":72000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"PrepaidTaxes":{"label":"Prepaid Taxes","description":"Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":276000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":276000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":276000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":98000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":147000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":74000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2012-03-31","val":131000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":44000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":53000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":59000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2013-03-31","val":50000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":41000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":41000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":40000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"}]}},"PriorPeriodReclassificationAdjustment":{"label":"Prior Period Reclassification Adjustment","description":"The amount of a reclassification adjustment made to prior period financial statement amounts.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":7000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"}]}},"ProceedsFromDivestitureOfBusinesses":{"label":"Proceeds from Divestiture of Businesses","description":"The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.","units":{"USD":[{"start":"2010-05-30","end":"2010-06-01","val":1640000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-07-01","end":"2010-07-31","val":1640000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-07-03","end":"2010-07-31","val":1640000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2010-01-01","end":"2010-09-30","val":1635000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":1640000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1640000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":1640000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1640000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"ProceedsFromDividendsReceived":{"label":"Proceeds from Dividends Received","description":"Dividends received on equity and other investments during the current period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":92000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":173000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":173000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":173000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":173000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":85000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":85000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":85000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":85000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":85000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":70000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":136000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":136000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":136000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":212000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":212000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":250000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2011-05-01","end":"2011-05-31","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":5000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"}]}},"ProceedsFromIssuanceOfCommonStock":{"label":"Proceeds from Issuance of Common Stock","description":"The cash inflow from the additional capital contribution to the entity.","units":{"USD":[{"start":"2013-01-01","end":"2013-03-31","val":324000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":324000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":324000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":324000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":324000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":324000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":324000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":324000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":324000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"}]}},"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":"2008-12-31","end":"2009-12-31","val":110000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":102000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":102000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":383000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":383000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":383000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":383000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":235000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":235000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":235000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":235000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":235000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":235000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":235000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":235000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":235000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-06-30","val":450000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":450000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":450000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":450000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":450000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":450000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":450000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":450000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":450000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":250000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":250000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":350000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":350000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":350000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":350000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":800000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":800000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":800000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":400000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":400000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":608000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":608000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":771000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":771000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":766000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":766000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":208000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":408000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":408000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":558000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ProceedsFromIssuanceOfPreferredStockAndPreferenceStock":{"label":"Proceeds from Issuance of Preferred Stock and Preference Stock","description":"Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.","units":{"USD":[{"start":"2014-01-01","end":"2014-06-30","val":90000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":108000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":126000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":126000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":18000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":36000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":54000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":54000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ProceedsFromIssuanceOrSaleOfEquity":{"label":"Proceeds from Issuance or Sale of Equity","description":"The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.","units":{"USD":[{"start":"2013-02-25","end":"2013-02-27","val":312000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-02-25","end":"2013-02-27","val":312000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q1I"},{"end":"2013-02-27","val":312000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-02-27","val":312000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19"},{"start":"2013-01-01","end":"2013-03-31","val":312000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":312000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":312000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":312000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":312000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"ProceedsFromLeasesHeldForInvestment":{"label":"Proceeds from Leases Held-for-investment","description":"The cash inflow from the sale of a lease held for investment, which may be a lease of real estate, equipment or other fixed assets for a specified time in exchange for payment, usually in the form of rent.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":161000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":161000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":161000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":161000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":161000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":161000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":161000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":202000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":202000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":202000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"ProceedsFromOtherDebt":{"label":"Proceeds from Other Debt","description":"Amount of cash inflow from debt classified as other.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":200000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":250000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":250000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":250000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":250000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":250000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"}]}},"ProceedsFromPaymentsForOtherFinancingActivities":{"label":"Proceeds from (Payments for) Other Financing Activities","description":"Amount of cash inflow (outflow) from financing activities classified as other.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":-18000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":4000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":-6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":-7000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-16000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-16000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":-1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":16000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":16000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-3000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":-8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":-30000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-17000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-5000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-16000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-7000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-11000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":-11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":-9000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":-23000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":-23000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":-29000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ProceedsFromRepaymentsOfRestrictedCashFinancingActivities":{"label":"Proceeds from (Repayments of) Restricted Cash, Financing Activities","description":"The net cash inflow or outflow from cash and cash items that are not available for withdrawal or usage.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":-175000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-175000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"}]}},"ProceedsFromRepaymentsOfShortTermDebt":{"label":"Proceeds from (Repayments of) Short-term Debt","description":"The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":65000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":458000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":4000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":33000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":-139000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":-139000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":11000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":198000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":198000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":198000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":198000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":198000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":253000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":253000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":143000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":-57000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":116000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":-84000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":233000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":233000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":233000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":33000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":33000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":26000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":26000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":-373000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":-373000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":-361000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":-361000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-200000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":-200000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":-200000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-56000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":-56000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":-86000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":-86000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":-32000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":-32000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":164000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":164000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":74000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":69000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":99000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ProceedsFromSaleOfLandHeldForUse":{"label":"Proceeds from Sale of Land Held-for-use","description":"The cash inflow from the sale of land held for use; excludes sales of land held as inventory or investments.","units":{"USD":[{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":54000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ProceedsFromSaleOfProductiveAssets":{"label":"Proceeds from Sale of Productive Assets","description":"The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":4000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2014-01-01","end":"2014-03-31","val":4000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-09-30","val":9000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"}]}},"ProfitLoss":{"label":"Net Income (Loss), Including Portion Attributable to Noncontrolling Interest","description":"The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.","units":{"USD":[{"start":"2011-01-01","end":"2011-03-31","val":62000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":157000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":95000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":237000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":80000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-03-31","val":68000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":130000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":62000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":242000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":112000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"}]}},"PropertyPlantAndEquipmentFairValueDisclosure":{"label":"Property, Plant, and Equipment, Fair Value Disclosure","description":"Fair value portion 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":"2014-02-28","val":8000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-02-28","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-02-28","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-02-28","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q1I"}]}},"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":12120000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":12120000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":12120000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":12431000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":12633000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":12855000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":13080000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":13303000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":13349000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":13625000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":13830000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":14083000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14277000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":14567000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":14567000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":14567000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":14567000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":14567000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":14803000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":15043000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":15241000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":15465000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":15465000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":15465000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":15465000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":15465000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":15546000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":15787000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":15989000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":16218000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":7673000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":7673000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":7673000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":7878000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":8020000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":8220000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":8399000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":8590000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":8600000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":8846000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":9034000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":9253000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":9475000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":9704000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":9704000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":9704000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":9704000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":9704000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":9906000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":10105000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10253000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":10506000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":10506000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":10506000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":10506000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":10506000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":10657000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":10865000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":11037000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":11304000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions":{"label":"Public Utilities, Allowance for Funds Used During Construction, Additions","description":"Total increase in earnings in the period representing the cost of equity (based on assumed rate of return) and/or borrowed funds (based on interest rate) used to finance construction of regulated assets, which is expected to be recovered through rate adjustments.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":7000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":7000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":15000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"PublicUtilitiesApprovedRateIncreaseDecreaseAmount":{"label":"Public Utilities, Approved Rate Increase (Decrease), Amount","description":"Amount of public utility's approved rate increase (decrease) by regulatory agency.","units":{"USD":[{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q2I"},{"start":"2013-07-01","end":"2013-07-31","val":27900000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q2I"},{"start":"2014-07-01","end":"2014-07-31","val":8750000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-07-31","val":8750000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2I"}]}},"PublicUtilitiesApprovedReturnOnEquityPercentage":{"label":"Public Utilities, Approved Return on Equity, Percentage","description":"Percentage of public utility's approved return on equity.","units":{"pure":[{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q2I"},{"start":"2014-07-01","end":"2014-07-31","val":0.0962,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-07-31","val":0.0962,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2I"}]}},"PublicUtilitiesInterimRateIncreaseDecreaseAmount":{"label":"Public Utilities, Interim Rate Increase (Decrease), Amount","description":"Amount of public utility's interim rate increase (decrease) allowed while waiting final decision of regulatory agency.","units":{"USD":[{"start":"2014-04-01","end":"2014-04-02","val":15100000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-04-02","val":15100000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q1I"},{"end":"2014-08-05","val":15100000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2I"}]}},"PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount":{"label":"Public Utilities, Requested Rate Increase (Decrease), Amended, Amount","description":"Amount of public utility's amended requested rate increase (decrease) with regulatory agency.","units":{"USD":[{"end":"2014-04-15","val":37400000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-04-15","val":37400000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-04-15","val":37400000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-04-15","val":37400000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-04-15","val":37400000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-04-15","val":37400000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1I"}]}},"PublicUtilitiesRequestedRateIncreaseDecreaseAmount":{"label":"Public Utilities, Requested Rate Increase (Decrease), Amount","description":"Amount of public utility's requested rate increase (decrease) with regulatory agency.","units":{"USD":[{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2012-07-01","end":"2012-07-31","val":18100000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2012Q2I"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2013-09-20","val":39000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2013Q3I"},{"start":"2014-03-25","end":"2014-03-26","val":23400000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-26","val":23400000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-03-26","val":23400000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-03-26","val":23400000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-03-01","end":"2014-03-31","val":61700000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-03-01","end":"2014-03-31","val":61700000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-03-01","end":"2014-03-31","val":61700000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1I"},{"end":"2014-03-31","val":61700000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-08-20","val":19000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-08-20","val":19000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q3I"}]}},"PublicUtilitiesRequestedReturnOnEquityPercentage":{"label":"Public Utilities, Requested Return on Equity, Percentage","description":"Percentage of public utility's requested return on equity.","units":{"pure":[{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2011-12-02","end":"2011-12-31","val":0.1075,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2011Q4I"},{"start":"2011-12-05","end":"2011-12-31","val":0.1075,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2012-07-01","end":"2012-07-31","val":0.0931,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2012Q2I"},{"start":"2013-07-01","end":"2013-07-31","val":0.0936,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q2I"},{"end":"2014-03-26","val":0.094,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-03-26","val":0.094,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-03-26","val":0.094,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-03-01","end":"2014-03-31","val":0.1025,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-03-01","end":"2014-03-31","val":0.1025,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1I"},{"end":"2014-03-31","val":0.1025,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-08-20","val":0.0975,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2014-08-20","val":0.0975,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q3I"},{"end":"2015-11-06","val":0.1,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3I"}]}},"RatioOfIndebtednessToNetCapital":{"label":"Ratio of Indebtedness to Net Capital (Deprecated 2012-01-31)","description":"Total Aggregate Indebtedness divided by Net Capital.","units":{"pure":[{"end":"2011-12-31","val":65,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"RealEstateTaxExpense":{"label":"Real Estate Tax Expense","description":"A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land).","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":68000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":70000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":70000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":70000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":70000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":71000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":71000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":71000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":71000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":71000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":75000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":75000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":75000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":75000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":75000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":77000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":84000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":84000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":92000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"RecoveryOfDirectCosts":{"label":"Recovery of Direct Costs","description":"Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":-3000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":-13000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":-13000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":13000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":-9000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":16000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":-16000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":27000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":-27000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":-52000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-52000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-01-01","end":"2011-12-31","val":-52000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":-52000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":52000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":7000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":-7000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":-22000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":22000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":-25000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":25000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":-40000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":40000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":-1000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-03-31","val":1000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-06-30","val":-12000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":-17000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-12-31","val":-22000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1"}]}},"RecoveryStrandedCosts":{"label":"Recovery Stranded Costs","description":"Revenue from billings to utility customers to recover what are also referred to as stranded assets or stranded investments. These are assets that formerly regulated utilities with monopolies on local service are allowed to recover during their transition to deregulated suppliers in competitive markets. Essentially, these investments are sunk costs, made by utilities under the old regulated system, which might not be recovered in a truly competitive marketplace. However, since they were valid investments at the time, the utilities are allowed to recover these costs from customers (for example, an investment in electrical generation assets that may not be recouped if customers are now allowed to purchase electricity from another utility).","units":{"USD":[{"start":"2013-07-01","end":"2013-07-31","val":24000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q2I"}]}},"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":"2010-12-31","val":1915000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-06-30","val":10000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":13000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2246000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":1915000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1915000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1915000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1848000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1915000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":2196000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":2215000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":2288000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":2421000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":2614000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":2566000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":2510000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":2316000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":2087000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1990000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":2002000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":2032000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":2409000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":2291000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":2310000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":2294000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":2246000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2010-12-31","val":528000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":308000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":528000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":528000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":528000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":525000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":530000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":526000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":526000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":525000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":528000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":501000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":492000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":439000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":461000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":399000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":383000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":394000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":371000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":343000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":370000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":355000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":348000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":308000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"RelatedPartyTransactionDueFromToRelatedPartyCurrent":{"label":"Related Party Transaction, Due from (to) Related Party, Current","description":"Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.","units":{"USD":[{"end":"2010-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":-25000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":-25000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":-25000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":-25000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":-2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":-2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":-2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":-2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":-1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":-1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":-13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":-13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":-8000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"RepaymentsOfDebt":{"label":"Repayments of Debt","description":"The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.","units":{"USD":[{"start":"2010-07-01","end":"2010-07-08","val":110000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"}]}},"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":"2008-12-31","end":"2009-12-31","val":83000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":482000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":1466000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":1726000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1726000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":1726000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1726000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":9000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":52000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":52000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":60000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":60000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":70000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":70000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":122000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":122000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":165000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":165000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":176000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":176000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":176000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":176000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":176000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":10000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":10000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":19000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":19000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":96000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":96000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":558000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":558000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":558000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":10000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":10000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":206000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":206000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-01-01","end":"2014-09-30","val":232000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":232000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":334000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":334000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":22000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":133000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-09-30","val":158000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":420000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"RepaymentsOfOtherDebt":{"label":"Repayments of Other Debt","description":"Amount of cash outflow for the payment of debt classified as other.","units":{"USD":[{"start":"2013-01-01","end":"2013-03-31","val":200000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":450000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-01-01","end":"2013-09-30","val":450000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":450000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":450000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":100000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-12-31","val":100000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"}]}},"RepaymentsOfShortTermDebt":{"label":"Repayments of Short-term Debt","description":"The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":450000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":100000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":100000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"}]}},"RestrictedCashAndCashEquivalentsAtCarryingValue":{"label":"Restricted Cash and Cash Equivalents, Current","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2010-12-31","val":11000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":11000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":17000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":11000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":10000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":9000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":14000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":10000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":20000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":15000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":13000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":13000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":13000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":13000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":13000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":202000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":21000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":21000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":25000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":25000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":25000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":25000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":25000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":17000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":13000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":18000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"RestrictedCashAndCashEquivalentsNoncurrent":{"label":"Restricted Cash and Cash Equivalents, Noncurrent","description":"Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2010-12-31","val":5000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":9000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":11000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":15000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":15000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":15000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":15000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":17000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":16000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":15000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":14000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":13000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":14000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":13000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":14000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":15000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"RestructuringAndRelatedCostNumberOfPositionsEliminated":{"label":"Restructuring and Related Cost, Number of Positions Eliminated","description":"The number of positions eliminated during the period as a result of restructuring activities.","units":{"employees":[{"start":"2009-12-31","end":"2010-12-31","val":164,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"}],"pure":[{"start":"2010-01-01","end":"2010-12-31","val":164,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010"}]}},"RestructuringCharges":{"label":"Restructuring Charges","description":"Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2010-01-01","end":"2010-09-30","val":14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":14000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2010-07-01","end":"2010-09-30","val":14000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2009-12-31","end":"2010-12-31","val":30000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-01-01","end":"2010-12-31","val":30000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-10-01","end":"2010-12-31","val":16000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"}]}},"RestructuringReserve":{"label":"Restructuring Reserve","description":"Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.","units":{"USD":[{"end":"2010-12-31","val":29000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":29000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":29000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q2I"},{"end":"2011-06-30","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-09-30","val":5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":5000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"RestructuringReserveSettledWithCash":{"label":"Restructuring Reserve, Settled With Cash (Deprecated 2013-01-31)","description":"Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":23000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":24000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":24000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"RetainedEarningsAccumulatedDeficit":{"label":"Retained Earnings (Accumulated Deficit)","description":"The cumulative amount of the reporting entity's undistributed earnings or deficit.","units":{"USD":[{"end":"2009-12-31","val":1268000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2009-12-31","val":1268000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2009-12-31","val":1236000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2009-12-31","val":1236000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2009-12-31","val":1236000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2009-12-31","val":1236000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-03-31","val":1244000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q1I"},{"end":"2010-06-30","val":1130000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-06-30","val":1130000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q2I"},{"end":"2010-09-30","val":1086000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3I"},{"end":"2010-12-31","val":1059000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":1059000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":1059000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2010-12-31","val":1027000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2010Q4I"},{"end":"2011-03-31","val":1062000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q1I"},{"end":"2011-06-30","val":1095000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":1095000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1114000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1072000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1072000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":1072000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":1072000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":1072000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1040000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2011-12-31","val":1040000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1040000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":1040000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":1040000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1079000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1079000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1129000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1109000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1109000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":1077000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":1077000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1077000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":1077000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1077000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":612000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":580000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":580000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":555000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":606000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":595000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":595000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":595000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":595000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":595000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":602000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":587000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":598000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":565000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":565000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":565000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":565000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":565000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":550000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":534000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":556000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":617000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2008-12-31","end":"2009-12-31","val":7402000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-30","end":"2010-03-31","val":1819000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q1"},{"start":"2010-01-01","end":"2010-06-30","val":3455000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-03-31","end":"2010-06-30","val":1636000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q2"},{"start":"2010-04-01","end":"2010-06-30","val":1636000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-01-01","end":"2010-09-30","val":5522000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2067000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":2067000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":7039000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":7040000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":5460000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":5407000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-10-01","end":"2010-12-31","val":1517000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4"},{"start":"2010-12-30","end":"2011-03-31","val":1634000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-03-31","val":1634000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2011-01-01","end":"2011-03-31","val":1638000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":1334000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-03-31","val":1320000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-06-30","val":3043000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":3050000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-03-31","end":"2011-06-30","val":1409000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1409000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1412000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":1412000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-04-01","end":"2011-06-30","val":1185000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-04-01","end":"2011-06-30","val":1171000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-09-30","val":4686000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":4698000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":1643000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1643000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-07-01","end":"2011-09-30","val":1648000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":1648000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-07-01","end":"2011-09-30","val":1431000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-07-01","end":"2011-09-30","val":1424000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":5920000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":5951000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":5012000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4964000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":4964000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2011-10-01","end":"2011-12-31","val":1234000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"start":"2011-10-01","end":"2011-12-31","val":1253000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-10-01","end":"2011-12-31","val":1062000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-10-01","end":"2011-12-31","val":1049000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4"},{"start":"2012-01-01","end":"2012-03-31","val":1292000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":1292000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1242000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2012-01-01","end":"2012-03-31","val":1136000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-03-31","val":1123000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-03-31","val":1123000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":2471000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":2206000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1179000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1179000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-04-01","end":"2012-06-30","val":1070000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1070000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-04-01","end":"2012-06-30","val":1057000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-04-01","end":"2012-06-30","val":1057000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":3947000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":3569000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1476000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1476000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-07-01","end":"2012-09-30","val":1402000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-07-01","end":"2012-09-30","val":1389000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1389000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-07-01","end":"2012-09-30","val":1389000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":5081000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":4675000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":4625000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":4625000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":4625000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2012-10-01","end":"2012-12-31","val":1134000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-10-01","end":"2012-12-31","val":1067000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-10-01","end":"2012-12-31","val":1056000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-10-01","end":"2012-12-31","val":1056000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4"},{"start":"2013-01-01","end":"2013-03-31","val":852000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":1180000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-03-31","val":1180000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2013-01-01","end":"2013-03-31","val":1180000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1865000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":2231000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":1053000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":1051000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-04-01","end":"2013-06-30","val":1051000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":1051000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":3575000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":3575000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1344000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":1344000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-07-01","end":"2013-09-30","val":1344000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":1344000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":4666000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":4666000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":4666000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2013-10-01","end":"2013-12-31","val":1091000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-10-01","end":"2013-12-31","val":1091000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4"},{"start":"2014-01-01","end":"2014-03-31","val":1330000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":1330000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-03-31","val":1330000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2014-01-01","end":"2014-03-31","val":1330000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":2447000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":2447000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":1117000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":1117000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-04-01","end":"2014-06-30","val":1117000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":1117000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":3760000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":3760000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":1313000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":1313000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-07-01","end":"2014-09-30","val":1313000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":1313000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":4878000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":4878000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2014-10-01","end":"2014-12-31","val":1118000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-10-01","end":"2014-12-31","val":1118000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4"},{"start":"2015-01-01","end":"2015-03-31","val":1371000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":1371000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":2511000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":1140000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":1140000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":3873000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":1362000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":1362000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":5023000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"},{"start":"2015-10-01","end":"2015-12-31","val":1150000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4"}]}},"SalesRevenueFromEnergyCommoditiesAndServices":{"label":"Sales Revenue from Energy Commodities and Services (Deprecated 2018-01-31)","description":"Revenue derived from energy-related services such supplying various forms of energy (such as steam, electricity and chilled water from the operation of on-site facilities or cogeneration plants), procurement services provided to energy purchasers, and the marketing and trading of energy commodities and derivatives.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":2383000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":1023000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":476000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":1480000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":457000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":1883000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":304000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1884000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":373000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":688000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":681000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":311000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":308000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":1005000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":993000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":317000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":312000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":1238000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":330000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":1269000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":178000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":228000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":148000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":413000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":76000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":185000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":544000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":131000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":256000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":662000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":97000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":106000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":49000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"SegmentReportingInformationDepreciationDepletionAndAmortizationExpense":{"label":"Segment Reporting Information, Depreciation, Depletion, and Amortization Expense (Deprecated 2011-01-31)","description":"Amount of depreciation, depletion, and amortization expense for the reportable segment. Such disclosure is presented if the amount is: (a) is included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":182000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":93000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2011-01-01","end":"2011-06-30","val":210000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":105000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period","description":"The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":50204,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-28,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":28,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":28,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":136902,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":340936,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":3044,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period","description":"The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":532874,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":760481,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":760481,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":760481,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":682702,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":924219,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":504738,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number","description":"The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.","units":{"shares":[{"end":"2010-12-31","val":903077,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":1177359,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":1177359,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":1177359,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":1177359,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":1680207,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":1680207,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":1680207,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":1680207,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":1653384,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":1653384,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":1421380,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":1421380,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":1116034,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period","description":"The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":208388,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-257605,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":257605,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":257605,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":572623,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":815287,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":807040,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee","description":"The highest quantity of shares an employee can purchase under the plan per period.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":1000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":1000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":1000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized","description":"Number of shares authorized for issuance under share-based payment arrangement.","units":{"shares":[{"end":"2011-12-31","val":10000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":10000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)","description":"The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.","units":{"USD":[{"end":"2011-12-31","val":19.03,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period","description":"For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":167423,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price","description":"Weighted average price of options that were either forfeited or expired.","units":{"USD/shares":[{"start":"2010-12-31","end":"2011-12-31","val":24.19,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures","description":"Net number of share options (or share units) granted during the period.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":0,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":30925,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":30925,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":30925,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":0,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":0,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":0,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number","description":"Number of options outstanding, including both vested and non-vested options.","units":{"shares":[{"end":"2009-09-30","val":5409,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009Q3I"},{"end":"2010-09-30","val":3606,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q3I"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit","description":"The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.","units":{"USD/shares":[{"start":"2010-12-31","end":"2011-12-31","val":19.03,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable","description":"The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.","units":{"shares":[{"end":"2011-12-31","val":30925,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding","description":"The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.","units":{"shares":[{"end":"2010-12-31","val":280266,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":30925,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit","description":"The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.","units":{"USD/shares":[{"start":"2010-12-31","end":"2011-12-31","val":22.69,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"ShareBasedGoodsAndNonemployeeServicesTransactionSharesApprovedForIssuance":{"label":"Share-based Goods and Nonemployee Services Transaction, Shares Approved for Issuance","description":"The maximum number of shares (or other type of equity) that have been approved for issuance in the equity-based payment transaction.","units":{"shares":[{"start":"2012-02-01","end":"2012-02-23","val":31000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-02-01","end":"2012-02-23","val":31000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-02-01","end":"2012-02-23","val":31000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price","description":"Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.","units":{"USD/shares":[{"end":"2011-12-31","val":20.75,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm1":{"label":"Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)","description":"The weighted average remaining life of the exercisable stock options as of the balance sheet date for all option plans in the customized range of exercise prices.","units":{"years":[{"end":"2011-12-31","val":0.03,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1":{"label":"Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price","description":"The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.","units":{"USD/shares":[{"end":"2010-12-31","val":22.3,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":20.75,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm1":{"label":"Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)","description":"The weighted-average period remaining as of the balance sheet date until option expiration pertaining to the outstanding stock options for all option plans in the customized range of exercise prices, which may be expressed in a variety of ways (for example, years, months).","units":{"years":[{"end":"2010-12-31","val":0.7,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":0.03,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"ShortTermBorrowings":{"label":"Short-term Debt","description":"Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.","units":{"USD":[{"end":"2010-12-31","val":534000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":534000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":534000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":395000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":545000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":732000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":986000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":875000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":848000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":965000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1041000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":392000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":404000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":565000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":565000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":565000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":565000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":565000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":509000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":479000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":533000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":729000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":729000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":729000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":729000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":729000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":803000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":798000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1128000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":1063000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeLowerBound":{"label":"Significant (Increase) Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound (Deprecated 2015-01-31)","description":"Amount of (increase) decrease reasonably possible in the estimated lower bound of the unrecognized tax benefit for a tax position taken or expected to be taken.","units":{"USD":[{"end":"2013-12-31","val":700000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":700000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound":{"label":"Significant (Increase) Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound (Deprecated 2015-01-31)","description":"Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken.","units":{"USD":[{"end":"2013-12-31","val":800000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":800000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"}]}},"StockholdersEquity":{"label":"Stockholders' Equity Attributable to Parent","description":"Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.","units":{"USD":[{"end":"2008-12-31","val":4190000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2008Q4I"},{"end":"2009-12-31","val":4256000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":4256000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2009-12-31","val":4224000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2009-12-31","val":4224000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-12-31","val":4230000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":4230000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4230000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":4230000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":4198000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":4198000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2010-12-31","val":4198000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2010Q4I"},{"end":"2011-06-30","val":4316000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4357000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2011-12-31","val":4304000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-03-31","val":4366000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2012-03-31","val":4366000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-03-31","val":4366000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1I"},{"end":"2012-06-30","val":4384000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2012-06-30","val":4384000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q2I"},{"end":"2012-09-30","val":4453000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":4446000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":4446000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":4414000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-03-31","val":4278000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2013-03-31","val":4246000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":4246000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-06-30","val":4236000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-06-30","val":4236000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2I"},{"end":"2013-09-30","val":4302000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":4315000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-03-31","val":4336000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2014-03-31","val":4336000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-03-31","val":4336000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1I"},{"end":"2014-06-30","val":4335000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2014-06-30","val":4335000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2I"},{"end":"2014-09-30","val":4362000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":4322000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":4322000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":4322000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":4322000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":4322000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":4317000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2015-03-31","val":4317000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2015-03-31","val":4317000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q1I"},{"end":"2015-06-30","val":4318000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2015-06-30","val":4318000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2I"},{"end":"2015-09-30","val":4348000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":4413000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest":{"label":"Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest","description":"Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.","units":{"USD":[{"end":"2010-12-31","val":4236000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":4236000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":4236000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2011-06-30","val":4316000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":4357000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":4336000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"}]}},"StockIssuedDuringPeriodSharesDividendReinvestmentPlan":{"label":"Stock Issued During Period, Shares, Dividend Reinvestment Plan","description":"Number of shares issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the shareholders to reinvest dividends paid to them by the entity on new issues of stock by the entity.","units":{"shares":[{"start":"2008-12-31","end":"2009-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"StockIssuedDuringPeriodSharesStockOptionsExercised":{"label":"Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period","description":"Number of share options (or share units) exercised during the current period.","units":{"shares":[{"start":"2010-12-31","end":"2011-12-31","val":81918,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"}]}},"StockIssuedDuringPeriodValueDividendReinvestmentPlan":{"label":"Stock Issued During Period, Value, Dividend Reinvestment Plan","description":"Value of stock issued during the period from a dividend reinvestment plan (DRIP). A dividend reinvestment plan allows the holder of the stock to reinvest dividends paid to them by the entity on new issues of stock by the entity.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":31000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":31000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":31000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":31000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":31000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":30000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":30000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":30000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":30000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":8000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":8000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":8000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":8000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":7000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":7000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":8000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":30000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":8000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":7000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":7000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":7000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":28000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":7000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":6000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":6000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-12-31","val":11000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"StockIssuedDuringPeriodValueNewIssues":{"label":"Stock Issued During Period, Value, New Issues","description":"Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":18000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":16000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":16000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":16000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":16000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":17000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":17000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":17000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":17000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":17000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-03-31","val":9000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q1"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":3000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q2"},{"start":"2012-07-01","end":"2012-09-30","val":4000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":19000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":321000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":321000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-03-31","val":321000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1"},{"start":"2013-04-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q2"},{"start":"2013-07-01","end":"2013-09-30","val":3000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":332000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":332000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":332000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-03-31","val":3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q1"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":4000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q2"},{"start":"2014-07-01","end":"2014-09-30","val":3000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":14000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-01-01","end":"2015-03-31","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q1"},{"start":"2015-04-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q2"},{"start":"2015-07-01","end":"2015-09-30","val":4000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":15000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2009-12-31","end":"2010-12-31","val":12000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":12000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"TaxCreditCarryforwardDeferredTaxAsset":{"label":"Tax Credit Carryforward, Deferred Tax Asset (Deprecated 2015-01-31)","description":"Amount of deferred tax asset, before valuation allowance, attributable to deductible other tax carryforwards.","units":{"USD":[{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-03-31","val":101000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q1I"},{"end":"2013-12-31","val":101000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":101000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":101000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"}]}},"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":"2008-12-31","end":"2009-12-31","val":368000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":197000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":105000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":327000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":130000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":434000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":434000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":434000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":434000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":111000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":220000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":220000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":109000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":109000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":346000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":346000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":126000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":126000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":451000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":451000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":451000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":451000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":451000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":104000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":104000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":209000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":209000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":105000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":105000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":330000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":330000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":121000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":121000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":432000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":432000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":432000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":432000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":432000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":105000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":105000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":206000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":206000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":101000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":101000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":325000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":325000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":119000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":119000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":428000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":428000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":428000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":104000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":104000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":206000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":206000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":102000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":102000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":315000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":109000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":413000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":413000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":109000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":213000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":104000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-12-31","val":427000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"TaxesOther":{"label":"Taxes, Other","description":"Amount of tax expense classified as other.","units":{"USD":[{"start":"2013-01-01","end":"2013-12-31","val":428000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-09-30","val":315000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":109000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":413000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-09-30","val":327000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":114000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":427000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":96000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"end":"2010-12-31","val":96000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":96000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-06-30","val":143000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"},{"end":"2011-09-30","val":112000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3I"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":110000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-03-31","val":99000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2012Q1I"},{"end":"2012-06-30","val":79000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2012Q2I"},{"end":"2012-09-30","val":97000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":75000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-03-31","val":50000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1I"},{"end":"2013-06-30","val":50000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2I"},{"end":"2013-09-30","val":50000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q3I"},{"end":"2013-12-31","val":56000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":56000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"end":"2013-12-31","val":56000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":56000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":56000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-03-31","val":49000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2014Q1I"},{"end":"2014-06-30","val":51000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":47000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":41000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":41000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":41000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q4I"},{"end":"2015-03-31","val":43000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":47000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"}]}},"TemporaryEquityCarryingAmount":{"label":"Temporary Equity, Carrying Amount (Deprecated 2012-01-31)","description":"The carrying value (book value) of an entity's issued and outstanding stock which is not included within permanent equity in Stockholders Equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2010-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"end":"2010-12-31","val":6000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"}]}},"TemporaryEquityIssuePeriodIncreaseOrDecrease":{"label":"Temporary Equity, Carrying Amount, Period Increase (Decrease)","description":"Change in the value of each type or class of stock classified as temporary equity during the period. The redemption requirement does not constitute an unconditional obligation that will be settled in a variable number of shares constituting a monetary value predominantly indexed to (a) a fixed monetary amount known at inception, (b) an amount inversely correlated with the residual value of the entity, or (c) an amount determined by reference to something other than the fair value of issuer's stock. Does not include mandatorily redeemable stock. The exception is if redemption is required upon liquidation or termination of the reporting entity.","units":{"USD":[{"start":"2014-01-01","end":"2014-06-30","val":90000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-09-30","val":108000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"}]}},"TemporaryEquityParOrStatedValuePerShare":{"label":"Temporary Equity, Par or Stated Value Per Share","description":"Per share amount of par value or stated value of stock classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable.","units":{"USD/shares":[{"end":"2014-06-30","val":0.01,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0.01,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":0.01,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0.01,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0.01,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0.01,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":0.01,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"TemporaryEquitySharesAuthorized":{"label":"Temporary Equity, Shares Authorized","description":"The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"shares":[{"end":"2014-06-30","val":18000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":18000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":18000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":18000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":18000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":18000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":18000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":18000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":18000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":18000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"TemporaryEquitySharesOutstanding":{"label":"Temporary Equity, Shares Outstanding","description":"The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"shares":[{"end":"2013-12-31","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"end":"2013-12-31","val":0,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"end":"2013-12-31","val":0,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-06-30","val":9000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":10800,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":12600,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":12600,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":12600,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":12600,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":12600,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":14400,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":16200,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":18000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":18000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"TemporaryEquityValueExcludingAdditionalPaidInCapital":{"label":"Temporary Equity, Par Value","description":"Carrying amount of the par value of temporary equity outstanding. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.","units":{"USD":[{"end":"2014-06-30","val":93000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2014Q2I"},{"end":"2014-09-30","val":111000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2014Q3I"},{"end":"2014-12-31","val":129000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":129000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01"},{"end":"2014-12-31","val":129000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"end":"2014-12-31","val":129000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"end":"2014-12-31","val":129000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-03-31","val":147000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1I"},{"end":"2015-06-30","val":165000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2I"},{"end":"2015-09-30","val":183000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3I"},{"end":"2015-12-31","val":183000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"TreasuryStockShares":{"label":"Treasury Stock, Shares","description":"Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.","units":{"shares":[{"end":"2013-03-31","val":102933,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-03-31","val":102933,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":102933,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"}]}},"TreasuryStockValue":{"label":"Treasury Stock, Value","description":"The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.","units":{"USD":[{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2013Q1I"},{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"end":"2013-03-31","val":2000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"}]}},"UnamortizedDebtIssuanceExpense":{"label":"Unamortized Debt Issuance Expense","description":"The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.","units":{"USD":[{"end":"2014-12-31","val":44000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":49000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2010-12-31","val":218000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010Q4I"},{"end":"2011-12-31","val":179000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":179000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":179000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":179000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2011Q4I"},{"end":"2012-12-31","val":182000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":182000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":182000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":182000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2012Q4I"},{"end":"2013-12-31","val":177000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":177000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2013Q4I"},{"end":"2014-12-31","val":172000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":172000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":139000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"UnrealizedGainLossOnDerivatives":{"label":"Unrealized Gain (Loss) on Derivatives","description":"The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":-10000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":-5000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2011Q3"}]}},"UnrealizedGainLossOnDerivativesAndCommodityContracts":{"label":"Unrealized Gain (Loss) on Derivatives and Commodity Contracts","description":"The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":-3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-06-30","val":-7000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-09-30","val":-11000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2010-12-31","end":"2011-12-31","val":-30000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":-30000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-06-30","val":12000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":20000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-12-31","val":24000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01","frame":"CY2012"}]}},"UnrecognizedTaxBenefits":{"label":"Unrecognized Tax Benefits","description":"Amount of unrecognized tax benefits.","units":{"USD":[{"end":"2008-12-31","val":255000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2008Q4I"},{"end":"2009-12-31","val":246000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":246000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2009-12-31","val":246000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2009-12-31","val":246000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-12-31","val":395000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":395000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":395000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":395000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2010-12-31","val":395000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2010Q4I"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2011-12-31","val":357000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":200000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-12-31","val":831000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":831000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":831000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-12-31","val":850000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":850000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions":{"label":"Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions","description":"Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"}]}},"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":"2008-12-31","end":"2009-12-31","val":-83000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-36000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":36000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":36000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":36000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":-57000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":57000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":235000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":235000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":235000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":235000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":235000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":12000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":10000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":201000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense":{"label":"Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense","description":"Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-12-31","end":"2011-12-31","val":14000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":14000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"}]}},"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":"2008-12-31","end":"2009-12-31","val":-1000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":150000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":150000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":150000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":150000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":2000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":3000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":4000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"}]}},"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":"2008-12-31","end":"2009-12-31","val":77000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":20000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":20000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":20000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":20000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":20000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":79000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":79000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":79000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":79000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":79000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":646000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":646000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":646000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":27000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":27000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":13000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2010-12-31","end":"2011-12-31","val":-3000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":3000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":6000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2015-01-01","end":"2015-12-31","val":628000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"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":"2011-06-30","val":2000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2011Q2I"}]}},"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":"2011-12-31","val":29000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011Q4I"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012Q4I"},{"end":"2013-12-31","val":9000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2013Q4I"},{"end":"2014-12-31","val":12000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2014Q4I"},{"end":"2015-12-31","val":22000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"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":"2012-01-01","end":"2012-09-30","val":10000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":10000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2012"},{"start":"2015-01-01","end":"2015-06-30","val":2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":2000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":2000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"}]}},"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":"2008-12-31","end":"2009-12-31","val":819000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-09-30","val":636000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":228000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":884000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":884000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":857000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":855000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":234000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":443000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":209000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":682000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":682000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":239000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":239000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":914000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":914000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":895000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":889000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":889000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":225000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":224000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":449000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":441000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":224000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":220000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":679000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":668000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":230000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":228000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":911000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":901000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":898000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":898000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":898000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":230000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":227000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":441000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":439000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":213000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":212000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":647000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":647000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":208000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":208000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":851000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":851000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":851000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":216000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":216000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":437000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":437000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":221000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":221000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":679000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":679000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":242000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":242000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":924000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":924000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":267000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":515000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":248000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":772000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":257000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":1016000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"UtilitiesOperatingExpensePurchasedPower":{"label":"Utilities Operating Expense, Purchased Power","description":"Amount of operating expense for purchased power of regulated operation.","units":{"USD":[{"start":"2011-01-01","end":"2011-12-31","val":2537000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":2123000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":2123000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":562000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":1008000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":446000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":1587000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":579000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":2070000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":2070000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":2070000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":614000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":614000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":1077000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":1077000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":463000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":463000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1622000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":1622000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":545000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":545000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":2080000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":2080000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":619000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1071000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":452000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1651000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":580000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":2097000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"UtilityRevenue":{"label":"Electric and Gas Revenue (Deprecated 2018-01-31)","description":"The aggregate amount of revenues for public and other utilities generated by the sale of electricity, water, gas, and other services.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":4980000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":2411000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":1149000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":4011000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":1600000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":5114000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":5114000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":5114000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-03-31","val":1249000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":2342000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-01-01","end":"2011-06-30","val":2342000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":1093000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-04-01","end":"2011-06-30","val":1093000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-09-30","val":3671000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-09-30","val":3671000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":1329000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2011-07-01","end":"2011-09-30","val":1329000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-12-31","end":"2011-12-31","val":4650000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":4650000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":4650000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-03-31","val":1055000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-03-31","val":1055000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-06-30","val":2039000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":2039000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":984000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-04-01","end":"2012-06-30","val":984000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-09-30","val":3374000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":1335000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":4378000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30","frame":"CY2012"},{"start":"2012-01-01","end":"2012-12-31","val":4378000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2013-01-01","end":"2013-03-31","val":1124000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2130000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":1006000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2013Q2"}]}},"ValuationAllowancesAndReservesBalance":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount","description":"Amount of valuation and qualifying accounts and reserves.","units":{"USD":[{"end":"2008-12-31","val":35000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2008Q4I"},{"end":"2009-12-31","val":44000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2009-12-31","val":44000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2009-12-31","val":37000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2009-12-31","val":37000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26","frame":"CY2009Q4I"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2010-12-31","val":51000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2010-12-31","val":44000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2010-12-31","val":44000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2010-12-31","val":44000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28","frame":"CY2010Q4I"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24"},{"end":"2011-12-31","val":49000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2011-12-31","val":43000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2011Q4I"},{"end":"2012-12-31","val":36000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2012-12-31","val":34000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2012Q4I"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2013-12-31","val":38000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013Q4I"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"end":"2014-12-31","val":40000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014Q4I"},{"end":"2015-12-31","val":56000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015Q4I"}]}},"ValuationAllowancesAndReservesChargedToCostAndExpense":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense","description":"Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":52000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":53000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":52000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":52000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":45000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":45000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":32000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":35000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":37000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":46000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":46000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":59000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ValuationAllowancesAndReservesChargedToOtherAccounts":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account","description":"Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":6000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":6000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":6000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":6000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":8000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":8000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":9000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":5000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"ValuationAllowancesAndReservesDeductions":{"label":"SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction","description":"Amount of decrease in valuation and qualifying accounts and reserves.","units":{"USD":[{"start":"2008-12-31","end":"2009-12-31","val":-49000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2009-12-31","end":"2010-12-31","val":-52000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":52000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":51000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":51000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2010-12-31","end":"2011-12-31","val":-55000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":55000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":54000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":53000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":52000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":38000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":38000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":38000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":53000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":53000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":48000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"WeightedAverageNumberDilutedSharesOutstandingAdjustment":{"label":"Weighted Average Number Diluted Shares Outstanding Adjustment","description":"The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.","units":{"shares":[{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":1000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":1000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":2000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2014-01-01","end":"2014-03-31","val":0,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":0,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":1000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":1000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-01-01","end":"2015-12-31","val":1000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"WeightedAverageNumberOfDilutedSharesOutstanding":{"label":"Weighted Average Number of Shares Outstanding, Diluted","description":"The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.","units":{"shares":[{"start":"2008-12-31","end":"2009-12-31","val":221000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":223000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":223000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":223000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":224000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":224000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":225000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":226000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":226000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":226000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":226000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":226000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":226000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":226000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":228000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":228000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":229000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":229000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":229000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":229000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":229000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":229000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":231000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":231000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":230000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":230000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":230000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":230000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":230000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":237000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":237000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":243000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":243000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":249000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":249000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":245000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":245000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":249000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":249000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":251000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":251000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":252000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":252000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":252000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":252000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":252000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":252000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":252000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":253000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":254000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":254000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":254000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":254000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":254000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}},"WeightedAverageNumberOfSharesOutstandingBasic":{"label":"Weighted Average Number of Shares Outstanding, Basic","description":"Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.","units":{"shares":[{"start":"2008-12-31","end":"2009-12-31","val":221000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":223000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2010-04-01","end":"2010-06-30","val":223000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":223000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2010-07-01","end":"2010-09-30","val":224000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04","frame":"CY2010Q3"},{"start":"2009-12-31","end":"2010-12-31","val":224000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2010"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2010-01-01","end":"2010-12-31","val":224000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-03-31","val":225000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":226000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-01-01","end":"2011-06-30","val":226000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2011-04-01","end":"2011-06-30","val":226000000,"accn":"0001193125-11-208391","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-03"},{"start":"2011-04-01","end":"2011-06-30","val":226000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":226000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-01-01","end":"2011-09-30","val":226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-07-01","end":"2011-09-30","val":226000000,"accn":"0001193125-11-295580","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-04"},{"start":"2011-07-01","end":"2011-09-30","val":226000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2011Q3"},{"start":"2010-12-31","end":"2011-12-31","val":226000000,"accn":"0001193125-12-075999","fy":2011,"fp":"FY","form":"10-K","filed":"2012-02-24","frame":"CY2011"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2011-01-01","end":"2011-12-31","val":226000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-03-31","val":228000000,"accn":"0001193125-12-209000","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":228000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":228000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-01-01","end":"2012-06-30","val":228000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":228000000,"accn":"0001193125-12-338604","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-07"},{"start":"2012-04-01","end":"2012-06-30","val":228000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":228000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":228000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":229000000,"accn":"0001193125-12-452374","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-07-01","end":"2012-09-30","val":229000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":229000000,"accn":"0001193125-13-085461","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-01"},{"start":"2012-01-01","end":"2012-12-31","val":229000000,"accn":"0001193125-13-353573","fy":2012,"fp":"FY","form":"8-K","filed":"2013-08-30"},{"start":"2012-01-01","end":"2012-12-31","val":229000000,"accn":"0001193125-13-455091","fy":2012,"fp":"FY","form":"8-K","filed":"2013-11-26"},{"start":"2012-01-01","end":"2012-12-31","val":229000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2012-01-01","end":"2012-12-31","val":229000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":237000000,"accn":"0001193125-13-196666","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-03"},{"start":"2013-01-01","end":"2013-03-31","val":237000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":243000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":243000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2013-04-01","end":"2013-06-30","val":249000000,"accn":"0001193125-13-322052","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-04-01","end":"2013-06-30","val":249000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":245000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-01-01","end":"2013-09-30","val":245000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-07-01","end":"2013-09-30","val":249000000,"accn":"0001193125-13-428371","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":249000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-14-073781","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-28"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2013-01-01","end":"2013-12-31","val":246000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":251000000,"accn":"0001193125-14-186032","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-07"},{"start":"2014-01-01","end":"2014-03-31","val":251000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-01-01","end":"2014-06-30","val":251000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2014-04-01","end":"2014-06-30","val":251000000,"accn":"0001193125-14-290113","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-01"},{"start":"2014-04-01","end":"2014-06-30","val":251000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":251000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-01-01","end":"2014-09-30","val":251000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2014-07-01","end":"2014-09-30","val":252000000,"accn":"0001193125-14-389980","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2014-07-01","end":"2014-09-30","val":252000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2014Q3"},{"start":"2014-01-01","end":"2014-12-31","val":251000000,"accn":"0001193125-15-066324","fy":2014,"fp":"FY","form":"10-K","filed":"2015-02-27"},{"start":"2014-01-01","end":"2014-12-31","val":251000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":253000000,"accn":"0001193125-15-163051","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-01","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":253000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27"},{"start":"2015-04-01","end":"2015-06-30","val":253000000,"accn":"0001193125-15-262919","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-27","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":253000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26"},{"start":"2015-07-01","end":"2015-09-30","val":254000000,"accn":"0001193125-15-352178","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-10-26","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":253000000,"accn":"0001193125-16-468556","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-19","frame":"CY2015"}]}}}}}