Quarterly report pursuant to Section 13 or 15(d)

Location on the Balance Sheet of Derivative Assets and Liabilities (Detail)

v2.4.0.6
Location on the Balance Sheet of Derivative Assets and Liabilities (Detail) (Fair Value, Inputs, Level 2, USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Asset Derivatives    
Asset Derivatives $ 543 $ 649
Derivative Liabilities [Abstract]    
Liability Derivatives 166 208
Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 85 164
Designated as Hedging Instrument | Foreign Exchange Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 23 0
Designated as Hedging Instrument | Foreign Exchange Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 143 185
Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 365 401
Designated as Hedging Instrument | Interest Rate Contracts | Other current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 9 0
Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 12 13
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 0 2
Not Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 70 82
Not Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives $ 2 $ 10