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Income Taxes - Domestic and Foreign Components of Income Before Income Taxes (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Income Tax Disclosure [Abstract] |  |  |
Income before income taxes, Domestic | $ 1,523 | $ 1,812 | $ 1,282
Income before income taxes, Foreign | 1,823 | 1,693 | 1,640
Income before income taxes | $ 3,346 | $ 3,505 | $ 2,922

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- Definition Income before income taxes. + References No definition available. + Details
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- Definition Income before income taxes domestic. + References No definition available. + Details
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- Definition Income before income taxes foreign. + References No definition available. + Details
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- Details
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