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Condensed Consolidated Statement of Comprehensive Loss Income (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Statement of Comprehensive Income [Abstract]    
Unrealized gain/loss on derivatives, income tax benefit $ (9) $ 7
Foreign currency translation adjustments, income tax benefit 6 0
Available-for-sale securities, income tax expense 6 2
Defined benefit plans, income tax expense $ (2) $ (5)