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Location on the Balance Sheet of Derivative Assets and Liabilities (Detail) (Fair Value, Inputs, Level 2, USD $)
In Millions, unless otherwise specified |
Jun. 30, 2013
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Dec. 31, 2012
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|---|---|---|
| Asset Derivatives | ||
| Asset Derivatives | $ 438 | $ 566 |
| Derivative Asset, Fair Value, Net | 360 | 540 |
| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | 198 | 159 |
| Derivative Asset, Fair Value, Net | 120 | 133 |
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Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
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| Asset Derivatives | ||
| Asset Derivatives | 64 | 27 |
| Derivative Asset, Fair Value, Net | 64 | 27 |
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Designated as Hedging Instrument | Foreign Exchange Contracts | Other noncurrent assets
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| Asset Derivatives | ||
| Asset Derivatives | 34 | 14 |
| Derivative Asset, Fair Value, Net | 34 | 12 |
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Designated as Hedging Instrument | Foreign Exchange Contracts | Other non-current liabilities
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| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | 113 | 103 |
| Derivative Asset, Fair Value, Net | 113 | 101 |
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Designated as Hedging Instrument | Interest Rate Contracts | Other current assets
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| Asset Derivatives | ||
| Asset Derivatives | 21 | 1 |
| Derivative Asset, Fair Value, Net | 21 | 1 |
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Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
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| Asset Derivatives | ||
| Asset Derivatives | 236 | 420 |
| Derivative Asset, Fair Value, Net | 162 | 406 |
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Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
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| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | 79 | 14 |
| Derivative Asset, Fair Value, Net | 5 | 0 |
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Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
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| Asset Derivatives | ||
| Asset Derivatives | 22 | 3 |
| Derivative Asset, Fair Value, Net | 21 | 3 |
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Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current liabilities
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| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | (1) | (1) |
| Derivative Asset, Fair Value, Net | 0 | (1) |
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Not Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
|
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| Asset Derivatives | ||
| Asset Derivatives | 61 | 101 |
| Derivative Asset, Fair Value, Net | 58 | 91 |
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Not Designated as Hedging Instrument | Interest Rate Contracts | Other current liabilities
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| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | 1 | 0 |
| Derivative Asset, Fair Value, Net | 1 | 0 |
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Not Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
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| Derivative Liabilities [Abstract] | ||
| Liability Derivatives | 4 | 41 |
| Derivative Asset, Fair Value, Net | $ 1 | $ 31 |