Derivative Instruments (Details 2) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value
Total asset derivatives	$ 14	$ 10
Total liability derivatives	5	4
Derivatives not designated as hedging instruments | Forward exchange contracts | Receivables.
Derivatives, Fair Value
Total asset derivatives	14	10
Derivatives not designated as hedging instruments | Forward exchange contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives	2	$ 4
Derivatives designated as hedging instruments | Commodity futures contracts | Other accrued liabilities or other liabilities (current)
Derivatives, Fair Value
Total liability derivatives	$ 3