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
Sep. 30, 2013
Dec. 31, 2012
Asset Derivatives    
Asset Derivatives $ 382 $ 566
Derivative Asset, Fair Value, Net 303 540
Derivative Liabilities [Abstract]    
Liability Derivatives 106 159
Derivative Asset, Fair Value, Net 27 133
Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 18 27
Derivative Asset, Fair Value, Net 18 27
Designated as Hedging Instrument | Foreign Exchange Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 32 14
Derivative Asset, Fair Value, Net 32 12
Designated as Hedging Instrument | Foreign Exchange Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 22 103
Derivative Asset, Fair Value, Net 22 101
Designated as Hedging Instrument | Interest Rate Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 15 1
Derivative Asset, Fair Value, Net 15 1
Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 243 420
Derivative Asset, Fair Value, Net 171 406
Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives 75 14
Derivative Asset, Fair Value, Net 3 0
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets
   
Asset Derivatives    
Asset Derivatives 12 3
Derivative Asset, Fair Value, Net 8 3
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current liabilities
   
Derivative Liabilities [Abstract]    
Liability Derivatives (4) (1)
Derivative Asset, Fair Value, Net 0 (1)
Not Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets
   
Asset Derivatives    
Asset Derivatives 62 101
Derivative Asset, Fair Value, Net 59 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