Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES (Details)

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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Jun. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
INCOME TAXES          
Discrete tax benefit related to excess tax benefits from share-based compensation       $ 13  
U.S. Tax Reform Act - Provisional measurement period adjustment   $ 49      
Income tax expense (benefit) $ 27   $ 35 $ 84 $ 78
Effective tax rate (as a percent)       10.00%  
Switzerland          
INCOME TAXES          
Carryover period       7 years  
Release of valuation allowance       $ 80  
UK          
INCOME TAXES          
Release of valuation allowance       15  
Luxembourg          
INCOME TAXES          
Release of valuation allowance 24        
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES          
INCOME TAXES          
Income tax expense (benefit) $ 26   $ 34 $ 81 $ 77
Effective tax rate (as a percent)       10.00%