Quarterly report pursuant to Section 13 or 15(d)

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

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STOCK-BASED COMPENSATION PLANS - COMPENSATION COST AND STOCK OPTIONS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
STOCK-BASED COMPENSATION PLANS        
Compensation cost $ 6 $ 7 $ 20 $ 22
Total income tax benefit recognized in the statements of operations for stock-based compensation arrangements     $ 3 $ 7
2016 Stock Incentive Plan        
STOCK-BASED COMPENSATION PLANS        
Shares available for grant 7,000   7,000  
Stock options        
Weighted average of the assumptions utilized for stock options granted        
Dividend yield (as a percent) 3.10%   3.00% 2.90%
Expected volatility (as a percent) 53.70%   53.10% 54.00%
Risk-free interest rate (as a percent) 0.40%   1.40% 2.50%
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)     5,025  
Granted (in shares)   0 788  
Exercised (in shares)     (484)  
Forfeited (in shares)     (168)  
Outstanding at the end of the period (in shares) 5,161   5,161  
Exercisable at the end of the period (in shares) 3,713   3,713  
Weighted Average Exercise Price        
Outstanding at the beginning of the period (in dollars per share)     $ 19.08  
Granted (in dollars per share)     21.52  
Exercised (in dollars per share)     13.05  
Forfeited (in dollars per share)     24.19  
Outstanding at the end of the period (in dollars per share) $ 19.85   19.85  
Exercisable at the end of the period (in dollars per share) $ 18.61   $ 18.61  
Outstanding, Weighted Average Remaining Contractual Term (years)     6 years 1 month 6 days  
Exercisable, Weighted Average Remaining Contractual Term (years)     5 years  
Outstanding, Aggregate Intrinsic Value (in dollars) $ 17   $ 17  
Exercisable, Aggregate Intrinsic Value (in dollars) 17   $ 17  
Weighted-average grant-date fair value of stock options granted (in dollars per share)     $ 8.25  
Total unrecognized compensation cost 9   $ 9  
Weighted-average period over which cost is expected to be recognized (years)     1 year 10 months 24 days  
Total intrinsic value of stock options exercised     $ 4 $ 2
Cash received from stock options exercised     2 1
Cash tax benefit from stock options exercised     $ 1 0
Stock options | Maximum        
STOCK-BASED COMPENSATION PLANS        
Contractual term     10 years  
Outstanding stock-based awards        
STOCK-BASED COMPENSATION PLANS        
Vesting period     3 years  
HUNTSMAN INTERNATIONAL LLC AND SUBSIDIARIES        
STOCK-BASED COMPENSATION PLANS        
Compensation cost $ 6 $ 7 $ 19 21
Total income tax benefit recognized in the statements of operations for stock-based compensation arrangements     $ 3 $ 7