Annual report pursuant to Section 13 and 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, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
May 05, 2016
STOCK-BASED COMPENSATION PLAN        
Authorized number of shares to be granted under the Stock Incentive Plan       8,200
Shares available for grant 9,500      
Compensation cost $ 27 $ 36 $ 32  
Total income tax benefit recognized in the statements of operations for stock-based compensation arrangements $ 18 $ 18 $ 7  
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) 1.60% 2.40% 5.60%  
Expected volatility (as a percent) 55.20% 56.90% 57.90%  
Risk-free interest rate (as a percent) 2.60% 2.00% 1.40%  
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      
Granted (in shares) 509      
Exercised (in shares) (3,873)      
Forfeited (in shares) (79)      
Outstanding at the end of the period (in shares) 4,545 7,988    
Exercisable at the end of the period (in shares) 2,816      
Weighted Average Exercise Price        
Outstanding at the beginning of the period (in dollars per share) $ 13.99      
Granted (in dollars per share) 32.51      
Exercised (in dollars per share) 11.85      
Forfeited (in dollars per share) 18.70      
Outstanding at the end of the period (in dollars per share) 17.81 $ 13.99    
Exercisable at the end of the period (in dollars per share) $ 17.02      
Outstanding, Weighted Average Remaining Contractual Term (years) 6 years 6 months      
Exercisable, Weighted Average Remaining Contractual Term (years) 5 years 7 months 6 days      
Outstanding, Aggregate Intrinsic Value (in dollars) $ 18      
Exercisable, Aggregate Intrinsic Value (in dollars) $ 10      
Weighted-average grant-date fair value of stock options granted (in dollars per share) $ 15.20 $ 9.26 $ 3.15  
Total unrecognized compensation cost $ 8      
Weighted-average period over which cost is expected to be recognized (years) 1 year 9 months 18 days      
Total intrinsic value of stock options exercised $ 78 $ 48 $ 1  
Cash received from stock options exercised 17 35 1  
Cash tax benefit from stock options exercised $ 17 15 0  
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 $ 26 $ 35 $ 31