Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION PLAN - COMPENSATION COST AND STOCK OPTIONS (Details)

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STOCK-BASED COMPENSATION PLAN - COMPENSATION COST AND STOCK OPTIONS (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
May 05, 2016
STOCK-BASED COMPENSATION PLAN          
Compensation cost from continuing operations $ 7 $ 8 $ 15 $ 17  
Total income tax benefit recognized in the statements of operations for stock-based compensation arrangements     $ 15 $ 4  
2016 Stock Incentive Plan          
STOCK-BASED COMPENSATION PLAN          
Authorized number of shares to be granted under the Stock Incentive Plan         8,200,000
Shares available for grant 9,000,000   9,000,000    
the "Prior Plan"          
STOCK-BASED COMPENSATION PLAN          
Shares available for grant         0
Stock options          
Weighted average of the assumptions utilized for stock options granted          
Dividend yield (as a percent)   2.00% 1.50% 2.40%  
Expected volatility (as a percent)   56.60% 55.20% 56.90%  
Risk-free interest rate (as a percent)   1.90% 2.60% 2.00%  
Expected life of stock options granted during the period   5 years 10 months 24 days 5 years 10 months 24 days 5 years 10 months 24 days  
Shares          
Outstanding at the beginning of the period (in shares)     7,988,000    
Granted (in shares) 0   479,000    
Exercised (in shares)     (3,597,000)    
Forfeited (in shares)     (27,000)    
Outstanding at the end of the period (in shares) 4,843,000   4,843,000    
Exercisable at the end of the period (in shares) 3,047,000   3,047,000    
Weighted Average Exercise Price          
Outstanding at the beginning of the period (in dollars per share)     $ 13.99    
Granted (in dollars per share)     32.77    
Exercised (in dollars per share)     12.02    
Forfeited (in dollars per share)     17.94    
Outstanding at the end of the period (in dollars per share) $ 17.29   17.29    
Exercisable at the end of the period (in dollars per share) $ 16.38   $ 16.38    
Outstanding, Weighted Average Remaining Contractual Term (years)     6 years 9 months 18 days    
Exercisable, Weighted Average Remaining Contractual Term (years)     5 years 10 months 24 days    
Outstanding, Aggregate Intrinsic Value (in dollars) $ 59   $ 59    
Exercisable, Aggregate Intrinsic Value (in dollars) 39   $ 39    
Weighted-average grant-date fair value of stock options granted (in dollars per share)     $ 15.38    
Total unrecognized compensation cost 11   $ 11    
Weighted-average period over which cost is expected to be recognized (years)     2 years 1 month 6 days    
Total intrinsic value of stock options exercised     $ 73 $ 9  
Cash received from stock options exercised     15 20  
Cash tax benefit from stock options exercised     $ 16 2  
Stock options | Maximum          
STOCK-BASED COMPENSATION PLAN          
Contractual term     10 years    
Outstanding stock-based awards          
STOCK-BASED COMPENSATION PLAN          
Vesting period     3 years    
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES          
STOCK-BASED COMPENSATION PLAN          
Compensation cost from continuing operations $ 7 $ 8 $ 14 16  
Total income tax benefit recognized in the statements of operations for stock-based compensation arrangements     $ 15 $ 4