Annual report pursuant to Section 13 and 15(d)

DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Fair Values of Derivative Assets and Liabilities by Hedge Type (Detail)

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DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Fair Values of Derivative Assets and Liabilities by Hedge Type (Detail) (Interest Expense [Member], USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Fixed-Rate Debt and Capital Leases
   
Derivatives, Fair Value [Line Items]    
Amount of Gain (Loss) Recognized in Income $ 306 $ (20)
Interest rate contracts
   
Derivatives, Fair Value [Line Items]    
Amount of Gain (Loss) Recognized in Income $ (306) $ 20