NONCONSOLIDATED AFFILIATES (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Income (Loss) from Equity Method Investments	$ 375	$ 251	$ 964	$ 799
Performance Plastics [Member]
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Income (Loss) from Equity Method Investments	150	58	271	182
Performance Plastics [Member] | Collection of previously impaired note receivable related to Equipolymers [Member]
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Income (Loss) from Equity Method Investments	86
Collection of previously impaired note receivable related to Equipolymers [Member]
Schedule of Equity Method Investments [Line Items]
Cash proceeds on a previously impaired note receivable related to Equipolymers	115
Dow Corning Corporation [Member]
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]
Sales (at 100 percent)	1,660	1,515	4,908	4,413
Gross profit (at 100 percent)	527	540	1,599	1,599
Net income attributable to Dow Corning Corporation (at 100 percent)	$ 177	$ 176	$ 547	$ 615