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Income Tax - Income Tax Benefit (Expense) (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
The Netherlands taxes - current $ (1) $ (11) $ (3)
Foreign taxes - current (130) (104) (53)
Current taxes (131) (115) (56)
The Netherlands taxes - deferred   (2) (4)
Foreign taxes - deferred 80 (64) (89)
Income tax benefit (expense) $ (51) $ (181) $ (149)