v2.4.0.8
Guarantee of Securities of Subsidiaries Comprehensive income (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest $ 601 $ 656
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) (45) (31)
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) 14 (6)
Foreign currency translation adjustments (62) (33)
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) (1) (1)
Total other comprehensive income (loss) (94) (71)
Comprehensive income 507 585
Comprehensive income attributable to noncontrolling interests (258) (331)
Comprehensive income attributable to controlling interests 249 254
Parent Company [Member]
    
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 287 292
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) (19) (16)
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) 6 (4)
Foreign currency translation adjustments (25) (17)
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) 0 (1)
Total other comprehensive income (loss) (38) (38)
Comprehensive income 249 254
Comprehensive income attributable to noncontrolling interests 0 0
Comprehensive income attributable to controlling interests 249 254
Subsidiary Issuers
    
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 49 38
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) (2) 1
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) 0 (1)
Foreign currency translation adjustments 0 0
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) 0 (3)
Total other comprehensive income (loss) (2) (3)
Comprehensive income 47 35
Comprehensive income attributable to noncontrolling interests 0 0
Comprehensive income attributable to controlling interests 47 35
Non-Guarantor Subsidiaries [Member]
    
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 737 807
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) (44) (30)
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) 13 (6)
Foreign currency translation adjustments (60) (32)
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) (2) (1)
Total other comprehensive income (loss) (93) (69)
Comprehensive income 644 738
Comprehensive income attributable to noncontrolling interests (258) (331)
Comprehensive income attributable to controlling interests 386 407
Consolidation, Eliminations [Member]
    
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest (472) (481)
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) 20 14
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) (5) 5
Foreign currency translation adjustments 23 16
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) 1 4
Total other comprehensive income (loss) 39 39
Comprehensive income (433) (442)
Comprehensive income attributable to noncontrolling interests 0 0
Comprehensive income attributable to controlling interests (433) (442)
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
    
Guarantor Obligations [Line Items]    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest 601 656
Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Change in fair value of derivatives utilized for hedging purposes (net of tax benefit of $14 and $9, respectively) (45) (31)
Reclassification of change in fair value of derivatives to net income (net of tax (expense) benefit of $(4) and $1, respectively) 14 (6)
Foreign currency translation adjustments (62) (33)
Adjustments to pension and other postretirement benefit plan liabilities (net of tax benefit of $- and $-, respectively) (1) (1)
Total other comprehensive income (loss) (94) (71)
Comprehensive income 507 585
Comprehensive income attributable to noncontrolling interests (258) (331)
Comprehensive income attributable to controlling interests $ 249 $ 254