Quarterly report pursuant to Section 13 or 15(d)

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

v2.4.0.8
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
Dec. 31, 2012
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
Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 64 27
Derivative Asset, Fair Value, Net 64 27
Designated as Hedging Instrument | Foreign Exchange Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 34 14
Derivative Asset, Fair Value, Net 34 12
Designated as Hedging Instrument | Foreign Exchange Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 113 103
Derivative Asset, Fair Value, Net 113 101
Designated as Hedging Instrument | Interest Rate Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 21 1
Derivative Asset, Fair Value, Net 21 1
Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 236 420
Derivative Asset, Fair Value, Net 162 406
Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 79 14
Derivative Asset, Fair Value, Net 5 0
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 22 3
Derivative Asset, Fair Value, Net 21 3
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives (1) (1)
Derivative Asset, Fair Value, Net 0 (1)
Not Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 61 101
Derivative Asset, Fair Value, Net 58 91
Not Designated as Hedging Instrument | Interest Rate Contracts | Other current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 1 0
Derivative Asset, Fair Value, Net 1 0
Not Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 4 41
Derivative Asset, Fair Value, Net $ 1 $ 31