Derivative Instruments (Details 1) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative assets	$ 5	$ 5
Derivative liabilities	6	0
Derivatives in Cash Flow Hedging Relationships
Derivatives, Fair Value [Line Items]
Derivative assets	4	3
Derivative liabilities	5	0
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative assets	1	2
Derivative liabilities	1	0
Derivatives Not Designated as Hedging Instruments | Commodity contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	2
Derivatives Not Designated as Hedging Instruments | Commodity contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	0
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	2	2
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	4	0
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Commodity contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	1	0
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	1
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	1	0
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Accrued expenses
Derivatives, Fair Value [Line Items]
Derivative liabilities	0	0
Cash Flow Hedging | Derivatives in Cash Flow Hedging Relationships | Foreign exchange contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0	$ 0