RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS - ACCRUED RESTRUCTURING, IMPAIRMENT AND PLANT CLOSING COSTS BY TYPE OF COST AND INITIATIVE (Details) - Combined Divisions of Huntsman $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) item	Jun. 30, 2016 USD ($)
Accrued restructuring costs roll forward
Accrued liabilities at the beginning of the period			$ 21
Restructuring charges	$ 4	$ 10	27	$ 16
Restructuring payments			(16)
Foreign currency effect on liability balance			1
Accrued liabilities at the end of the period	$ 33		$ 33
Number of positions terminated | item			335
Number of positions terminated at reporting date | item	0		0
Workforce reductions
Accrued restructuring costs roll forward
Accrued liabilities at the beginning of the period			$ 21
Restructuring charges			19
Restructuring payments			(8)
Foreign currency effect on liability balance			1
Accrued liabilities at the end of the period	$ 33		33
Other restructuring costs
Accrued restructuring costs roll forward
Restructuring charges			8
Restructuring payments			$ (8)