Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Location on the Balance Sheet of Derivative Assets and Liabilities (Detail) - Fair Value, Inputs, Level 2 - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Asset Derivatives    
Asset Derivatives $ 812 $ 768
Derivative Asset, Fair Value, Net 783 738
Derivative Liabilities [Abstract]    
Liability Derivatives 98 53
Derivative Liability, Fair Value, Amount Offset Against Collateral 69 23
Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets    
Asset Derivatives    
Asset Derivatives 257 408
Derivative Asset, Fair Value, Net 256 408
Designated as Hedging Instrument | Foreign Exchange Contracts | Other noncurrent assets    
Asset Derivatives    
Asset Derivatives 28 92
Derivative Asset, Fair Value, Net 23 92
Designated as Hedging Instrument | Foreign Exchange Contracts | Other current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 3 0
Derivative Liability, Fair Value, Amount Offset Against Collateral 2 0
Designated as Hedging Instrument | Foreign Exchange Contracts | Other non-current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 41 0
Derivative Liability, Fair Value, Amount Offset Against Collateral 36 0
Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets    
Asset Derivatives    
Asset Derivatives 293 204
Derivative Asset, Fair Value, Net 279 185
Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 14 19
Derivative Liability, Fair Value, Amount Offset Against Collateral 0 0
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current assets    
Asset Derivatives    
Asset Derivatives 0 2
Derivative Asset, Fair Value, Net 0 0
Not Designated as Hedging Instrument | Foreign Exchange Contracts | Other current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 7 12
Derivative Liability, Fair Value, Amount Offset Against Collateral 7 10
Not Designated as Hedging Instrument | Price Risk Derivative [Member] | Other current assets    
Asset Derivatives    
Asset Derivatives 159 5
Derivative Asset, Fair Value, Net 159 0
Not Designated as Hedging Instrument | Price Risk Derivative [Member] | Other current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 0 9
Derivative Liability, Fair Value, Amount Offset Against Collateral 0 4
Not Designated as Hedging Instrument | Interest Rate Contracts | Other noncurrent assets    
Asset Derivatives    
Asset Derivatives 75 57
Derivative Asset, Fair Value, Net 66 53
Not Designated as Hedging Instrument | Interest Rate Contracts | Other non-current liabilities    
Derivative Liabilities [Abstract]    
Liability Derivatives 33 13
Derivative Liability, Fair Value, Amount Offset Against Collateral $ 24 $ 9