Derivative Instruments (Details 1) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	$ 4	$ 4
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	3	8
Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	3	4
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	3	8
Not Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	1	0
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	0	0
Commodity contracts [Member] | Other current assets [Member] | Not Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	1	0
Commodity contracts [Member] | Accrued expenses [Member] | Not Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	0	0
Foreign exchange contracts [Member] | Other current assets [Member] | Not Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	0	0
Foreign exchange contracts [Member] | Accrued expenses [Member] | Not Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	0	0
Cash Flow Hedging [Member] | Commodity contracts [Member] | Other current assets [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	2	1
Cash Flow Hedging [Member] | Commodity contracts [Member] | Accrued expenses [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	2	8
Cash Flow Hedging [Member] | Foreign exchange contracts [Member] | Other current assets [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	1	3
Cash Flow Hedging [Member] | Foreign exchange contracts [Member] | Accrued expenses [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	0	0
Net Investment Hedging [Member] | Foreign exchange contracts [Member] | Other current assets [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Assets	0	0
Net Investment Hedging [Member] | Foreign exchange contracts [Member] | Accrued expenses [Member] | Designated as Hedging Instrument [Member]
Fair values of derivative instruments on the consolidated balance sheets
Derivative Liabilities	$ 1	$ 0