Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Income On Derivatives	$ 1	$ (2)	$ 0	$ (4)
Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives (Effective Portion)	0	7	(4)	3
Cost of products sold [Member] | Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	(2)	(6)	(7)	(17)
Commodity contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			1
Not Designated as Hedging Instrument [Member] | Commodity contracts [Member] | Cost of products sold [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Income On Derivatives	0	(2)	0	(3)
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member] | Other Income [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Income On Derivatives	1	0	0	(1)
Designated as Hedging Instrument [Member] | Commodity contracts [Member] | Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives (Effective Portion)	1	(1)	(2)	(2)
Designated as Hedging Instrument [Member] | Commodity contracts [Member] | Cost of products sold [Member] | Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	(3)	(4)	(8)	(13)
Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member] | Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives (Effective Portion)	0	8	(1)	5
Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member] | Net Investment Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Recognized in Other Comprehensive Income on Derivatives (Effective Portion)	(1)	0	(1)	0
Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member] | Cost of products sold [Member] | Cash Flow Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	1	(2)	1	(4)
Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member] | Other Income [Member] | Net Investment Hedging [Member]
Pretax effects of derivative instruments on consolidated statements of operations
Amount of Gain or (Loss) Reclassified from AOCI into Income (Effective Portion)	$ 0	$ 0	$ 0	$ 0