Annual report pursuant to Section 13 and 15(d)

Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - BALANCE SHEETS (Details)

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Schedule I - Condensed Financial Information of Registrant (PARENT ONLY) - BALANCE SHEETS (Details) - USD ($)
$ / shares in Units, $ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
ASSETS        
Prepaid assets $ 83 $ 58    
Receivable from affiliate 13 18    
Total current assets 3,755 2,958    
Investment in and advances to affiliates 535 526    
Total assets 8,320 7,953    
LIABILITIES AND STOCKHOLDERS' EQUITY        
Payable to affiliate 57 32    
Accrued liabilities 420 497    
Total current liabilities 2,008 1,611    
Other long-term liabilities 898 949    
Total liabilities 5,496 5,204    
STOCKHOLDERS' EQUITY        
Common stock $0.01 par value, 1,200,000,000 shares authorized, 257,405,496 and 256,006,849 shares issued and 224,295,868 and 232,994,172 shares outstanding, respectively 3 3    
Additional paid-in capital 4,008 3,984    
Treasury stock, 33,112,572 and 23,012,680 shares, respectively (635) (427)    
Unearned stock-based compensation (17) (16)    
Retained earnings 690 292    
Accumulated other comprehensive loss (1,362) (1,316)    
Total Huntsman Corporation stockholders' equity 2,687 2,520    
Total liabilities and equity $ 8,320 $ 7,953    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01    
Common stock, shares authorized 1,200,000,000 1,200,000,000    
Common stock, shares issued 257,405,496 256,006,849    
Common stock, shares outstanding 224,295,868 232,994,172    
Treasury stock, shares 33,112,572 23,012,680    
Reportable legal entities | Parent        
ASSETS        
Prepaid assets $ 1 $ 1    
Receivable from affiliate 86 72    
Note receivable from affiliate 100 100    
Total current assets 187 173    
Note receivable from affiliate-long-term 280 488    
Investment in and advances to affiliates 2,626 2,251    
Total assets 3,093 2,912    
LIABILITIES AND STOCKHOLDERS' EQUITY        
Payable to affiliate 396 381    
Accrued liabilities 3 3    
Total current liabilities 399 384    
Other long-term liabilities 7 8    
Total liabilities 406 392    
STOCKHOLDERS' EQUITY        
Common stock $0.01 par value, 1,200,000,000 shares authorized, 257,405,496 and 256,006,849 shares issued and 224,295,868 and 232,994,172 shares outstanding, respectively 3 3    
Additional paid-in capital 4,008 3,984    
Treasury stock, 33,112,572 and 23,012,680 shares, respectively (635) (427)    
Unearned stock-based compensation (17) (16)    
Retained earnings 690 292    
Accumulated other comprehensive loss (1,362) (1,316)    
Total Huntsman Corporation stockholders' equity 2,687 2,520 $ 2,620 $ 1,287
Total liabilities and equity $ 3,093 $ 2,912    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01    
Common stock, shares authorized 1,200,000,000 1,200,000,000    
Common stock, shares issued 257,405,496 256,006,849    
Common stock, shares outstanding 224,295,868 232,994,172    
Treasury stock, shares 33,112,572 23,012,680