v2.4.0.8
Changes in Accumulated Other Comprehensive Income (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning of period     $ (237)  
Aggregate adjustment for the period (190) 118 (174) (22)
Accumulated other comprehensive income, end of period (406) (262) (406) (262)
Foreign currency translation adjustments [Member]
       
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning of period (8) (179) (17) (62)
Aggregate adjustment for the period (176) 110 (167) (7)
Accumulated other comprehensive income, end of period (184) (69) (184) (69)
Unrealized gains (losses) on derivatives [Member]
       
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax 8 10 5 9
Tax effect of reclassification to income 3 5 5 1
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning of period 9 (25) 2 14
Other comprehensive income before reclassifications (net of tax effect) (30) 4 (27) (29)
Reclassification to income (net of tax effect) 7 6 11 0
Accumulated other comprehensive income, end of period (14) (15) (14) (15)
Pension and postretirement plans [Member]
       
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Tax effect of current period changes in fair value 4 2 3 2
Tax effect of reclassification to income 0 0 0 1
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]        
Accumulated other comprehensive income, beginning of period (220) (173) (222) (189)
Other comprehensive income before reclassifications (net of tax effect) 10 (7) 8 6
Reclassification to income (net of tax effect) 2 2 6 5
Accumulated other comprehensive income, end of period $ (208) $ (178) $ (208) $ (178)