Quarterly report [Sections 13 or 15(d)]

Note 9 - Debt - Notes Outstanding (Details) (Parentheticals)

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Note 9 - Debt - Notes Outstanding (Details) (Parentheticals) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Carrying amount of debt $ 2,035 $ 1,835
Huntsman International LLC [Member] | Senior Notes Maturing May 2029 [Member]    
Carrying amount of debt 744  
Huntsman International LLC [Member] | Senior Notes Maturing June 2031 [Member]    
Carrying amount of debt 398  
Huntsman International LLC [Member] | Senior Note Maturing in October 2034 [Member]    
Carrying amount of debt $ 345