Annual report pursuant to Section 13 and 15(d)

Schedule I - Condensed Financial Information of Registrant - Huntsman Corporation (Parent Only) Balance Sheets (Details) (Parentheticals)

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Schedule I - Condensed Financial Information of Registrant - Huntsman Corporation (Parent Only) Balance Sheets (Details) (Parentheticals) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,200,000,000 1,200,000,000
Common stock, shares issued (in shares) 259,701,770 258,520,411
Common stock, shares outstanding (in shares) 214,170,287 220,046,262
Treasury stock, shares (in shares) 45,531,489 38,477,091
Parent Company [Member] | Reportable Legal Entities [Member]    
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,200,000,000 1,200,000,000
Common stock, shares issued (in shares) 259,701,770 258,520,411
Common stock, shares outstanding (in shares) 214,170,287 220,046,262
Treasury stock, shares (in shares) 45,531,489 38,477,091