SHARE-BASED COMPENSATION PLAN (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) employee shares	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Aug. 15, 2017 shares
STOCK-BASED COMPENSATION PLAN
Income tax expense (benefit)	$ 50	$ (23)	$ (34)
Incentive Plan 2017
STOCK-BASED COMPENSATION PLAN
Authorized number of shares to be granted under the stock incentive plan | shares	12,800,000			14,025,000
Remaining shares available for grant | shares	11,600,000
Vesting period	3 years
Number of employees were affected by the conversion | employee	39
Number of converted award	1.33
Compensation cost from continuing operations	$ 3
Income tax expense (benefit)	1	0	0
Huntsman Plan
STOCK-BASED COMPENSATION PLAN
Compensation cost from continuing operations	$ 2	$ 2	$ 2
Stock options | Incentive Plan 2017 | Maximum
STOCK-BASED COMPENSATION PLAN
Contractual term	10 years
Performance share units | Incentive Plan 2017
STOCK-BASED COMPENSATION PLAN
Vesting period	2 years