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Hedges and Derivative Financial Instruments - Schedule of Outstanding Derivative Contracts (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Derivatives, Fair Value [Line Items]    
Fair value of hedged assets $ 59 $ 78
Fair value of hedged liabilities 63 37
Derivative asset at fair value, current 33 54
Derivative asset at fair value, noncurrent 26 24
Total derivatives, hedge assets at fair value 59 78
Derivative liability at fair value, current 62 35
Derivative liability at fair value, noncurrent 1 2
Total derivatives, hedge liabilities at fair value 63 37
Derivatives accounted for as hedges    
Derivatives, Fair Value [Line Items]    
Fair value of hedged assets 46 39
Fair value of hedged liabilities 22 21
Derivatives accounted for as hedges | Foreign exchange forwards/options    
Derivatives, Fair Value [Line Items]    
Notional Amount 2,089 1,813
Fair value of hedged assets 29 32
Fair value of hedged liabilities $ 19 $ 10
Maximum term of foreign exchange forwards/options 55 months 58 months
Derivatives accounted for as hedges | Commodity swaps/options    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 291 $ 299
Fair value of hedged assets 17 7
Fair value of hedged liabilities $ 3 $ 11
Maximum term of commodity swaps/options 45 months 36 months
Derivatives not accounted for as hedges    
Derivatives, Fair Value [Line Items]    
Fair value of hedged assets $ 13 $ 39
Fair value of hedged liabilities 41 16
Derivatives not accounted for as hedges | Foreign exchange forwards/options    
Derivatives, Fair Value [Line Items]    
Notional Amount 2,771 3,262
Fair value of hedged assets 13 39
Fair value of hedged liabilities $ 41 $ 16
Maximum term of foreign exchange forwards/options 32 months 35 months
Derivatives not accounted for as hedges | Commodity swaps/options    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 1 $ 2
Fair value of hedged assets 0 0
Fair value of hedged liabilities $ 0 $ 0
Maximum term of commodity swaps/options 10 months 2 months