Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Taxes [Line Items]
Foreign tax credit carryforwards		$ 142
Foreign tax credit carryforward period		ten year carryforward period
Foreign tax credit carryforward expiration		2014
Deferred tax liabilities increase (decrease)				(116)	(2)
Increase to deferred tax liability	54		75	(22)	117
Decrease to deferred tax liability	(50)		29	(24)	87
Decreases in tax positions, prior period				13
Decreases in tax positions, current period				5
Advanced Engineered Materials [Member] | Polyplastics Co., Ltd. [Member]
Income Taxes [Line Items]
Cash dividend payment				72
Deferred tax liability	$ 38			$ 38