Derivative Instruments - Balance Sheet Classification (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value
Total asset derivatives	$ 15	$ 14
Total liability derivatives	5	5
Derivatives not designated as hedging instruments | Foreign exchange derivative contracts | Receivables.
Derivatives, Fair Value
Total asset derivatives	9	14
Derivatives not designated as hedging instruments | Foreign exchange derivative contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives	5	2
Derivatives designated as hedging instruments | Commodity forward contracts | Receivables.
Derivatives, Fair Value
Total asset derivatives	$ 6
Derivatives designated as hedging instruments | Commodity futures contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives		$ 3