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Derivative Financial Instruments - Derivative Instruments Gain (Loss) Recognized in Income (Detail) (Foreign forward exchange contracts [Member], Interest expense, net [Member], Derivatives not designated as hedging instruments [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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Foreign forward exchange contracts [Member] | Interest expense, net [Member] | Derivatives not designated as hedging instruments [Member]
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| Derivative Instruments Gain Loss [Line Items] | ||
| Amount of Gain (Loss) Recognized in Income on Derivative | $ (28) | $ 5 |