Derivative Instruments - Balance Sheet Classification (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Derivatives, Fair Value
Total asset derivatives	$ 10	$ 14	$ 16
Total liability derivatives	2	5	6
Derivatives not designated as hedging instruments | Foreign exchange derivative contracts | Other assets
Derivatives, Fair Value
Total asset derivatives	8	14	16
Derivatives not designated as hedging instruments | Foreign exchange derivative contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives	2	2	4
Derivatives designated as hedging instruments | Commodity forward contracts | Other assets
Derivatives, Fair Value
Total asset derivatives	$ 2
Derivatives designated as hedging instruments | Commodity forward contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives		$ 3	$ 2