Derivative Instruments (Details 1) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative assets	$ 3	$ 9
Derivative liabilities	24	22
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Derivative liabilities	2	2
Derivatives Not Designated as Hedging Instruments | Commodity contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Derivatives Not Designated as Hedging Instruments | Commodity contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	2	2
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships
Derivatives, Fair Value [Line Items]
Derivative assets	3	9
Derivative liabilities	22	20
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	1
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	15	15
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	4	5
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	8
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	0
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	0
Cash flow hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 2	$ 0