Annual report pursuant to Section 13 and 15(d)

DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Amount and Location in the Income Statement for Derivatives Designated as Fair Value Hedges (Detail)

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DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Amount and Location in the Income Statement for Derivatives Designated as Fair Value Hedges (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives $ 566 $ 649
Liability Derivatives 159 208
Foreign exchange contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 44 166
Liability Derivatives 104 185
Interest rate contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 522 483
Liability Derivatives 55 23
Fair Value, Inputs, Level 1
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives 0 0
Fair Value, Inputs, Level 1 | Foreign exchange contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives 0 0
Fair Value, Inputs, Level 1 | Interest rate contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives 0 0
Fair Value, Inputs, Level 2
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 566 649
Liability Derivatives 159 208
Fair Value, Inputs, Level 2 | Foreign exchange contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 44 166
Liability Derivatives 104 185
Fair Value, Inputs, Level 2 | Interest rate contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 522 483
Liability Derivatives 55 23
Fair Value, Inputs, Level 3
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives 0 0
Fair Value, Inputs, Level 3 | Foreign exchange contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives 0 0
Fair Value, Inputs, Level 3 | Interest rate contracts
    
Derivative Instruments, Gain (Loss) [Line Items]    
Asset Derivatives 0 0
Liability Derivatives $ 0 $ 0