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Effect of Derivative Instruments on Income and Other Comprehensive Income (Parenthetical) (Detail) (Derivatives in Fair Value Hedging Relationship, Interest and other income, net, USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Derivatives in Fair Value Hedging Relationship | Interest and other income, net
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| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Losses related to the amount excluded from effectiveness testing of the hedges | $ 14 | $ 6 | $ 0 |