OTHER COMPREHENSIVE INCOME (LOSS) - COMPONENTS AND CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - Combined Divisions of Huntsman - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Components of other comprehensive loss
Balance at the beginning of the period			$ 177	$ 728	$ 728
Other comprehensive income (loss), net of tax:	$ 98	$ (10)	107	(49)
Balance at the end of the period	1,105	283	1,105	283	177	$ 728
Total
Components of other comprehensive loss
Balance at the beginning of the period			(423)	(401)	(401)
Adjustments related to other entities under common control			29	2
Tax expense			(3)
Other comprehensive (loss) income before reclassifications, gross			72	(56)
Tax benefit (expense)			2	(1)
Amounts reclassified from accumulated other comprehensive loss, gross			7	5
Tax benefit (expense)				1
Other comprehensive income (loss), net of tax:			107	(49)
Balance at the end of the period	(316)	(450)	(316)	(450)	(423)	(401)
Foreign currency translation adjustment
Components of other comprehensive loss
Balance at the beginning of the period			(112)	(144)	(144)
Adjustments related to other entities under common control			5	1
Other comprehensive (loss) income before reclassifications, gross			72	(62)
Tax benefit (expense)			2
Other comprehensive income (loss), net of tax:			79	(61)
Balance at the end of the period	(33)	(205)	(33)	(205)	(112)	(144)
Foreign currency translation adjustment, tax			2	0	0	0
Pension and other postretirement benefits adjustments
Components of other comprehensive loss
Balance at the beginning of the period			(306)	(252)	(252)
Adjustments related to other entities under common control			24	1
Tax expense			(3)
Other comprehensive (loss) income before reclassifications, gross				6
Tax benefit (expense)				(1)
Amounts reclassified from accumulated other comprehensive loss, gross	3	3	7	5
Tax benefit (expense)		1		1
Other comprehensive income (loss), net of tax:			28	12
Balance at the end of the period	(278)	(240)	(278)	(240)	(306)	(252)
Pension and other postretirement benefits adjustments, tax			53	60	56	60
Other comprehensive income of unconsolidated affiliates
Components of other comprehensive loss
Balance at the beginning of the period			(5)	(5)	(5)
Balance at the end of the period	(5)	(5)	(5)	(5)	(5)	(5)
Accumulated other comprehensive loss
Components of other comprehensive loss
Balance at the beginning of the period			(423)	(401)	(401)
Adjustments related to other entities under common control			29	2
Tax expense			(3)
Other comprehensive (loss) income before reclassifications, gross			72	(56)
Tax benefit (expense)			2	(1)
Amounts reclassified from accumulated other comprehensive loss, gross			7	5
Tax benefit (expense)				1
Other comprehensive income (loss), net of tax:			107	(49)
Balance at the end of the period	$ (316)	$ (450)	$ (316)	$ (450)	$ (423)	$ (401)