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DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Fair Values of Derivative Assets and Liabilities by Hedge Type (Detail) (Interest Expense, USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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Fixed-Rate Debt and Capital Leases
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| Derivatives, Fair Value [Line Items] | ||
| Amount of Gain (Loss) Recognized in Income | $ (20) | $ (320) |
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Interest rate contracts
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| Derivatives, Fair Value [Line Items] | ||
| Amount of Gain (Loss) Recognized in Income | $ 20 | $ 320 |