NET INCOME (LOSS) PER SHARE (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Income (Loss) from continuing operations:
Income (loss) from continuing operations attributable to Huntsman Corporation	$ (44)	$ 56	$ 145	$ (51)
Net income (loss)
Net income (loss) attributable to Huntsman Corporation	(34)	55	142	(3)
Shares:
Weighted average shares outstanding (in shares)	237.6	236.4	238.2	235.9
Dilutive securities:
Stock-based awards (in shares)		4.6	4.4
Total dilutive shares outstanding assuming conversion (in shares)	237.6	241.0	242.6	235.9
Outstanding stock-based awards
Antidilutive shares not included in the computation of income (loss) per share
Weighted average equivalent shares (in shares)	6.8	6.9	6.7	7.1
Convertible notes due 2018
Antidilutive shares not included in the computation of income (loss) per share
Weighted average equivalent shares (in shares)				1.2
Stated rate of interest (as a percent)		7.00%		7.00%
Interest expense, net of tax, would have been included as an adjustment to the numerator of the diluted loss per share				$ 1