Quarterly report [Sections 13 or 15(d)]

Note 18 - Stock-based Compensation Plans - Compensation Cost (Details)

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Note 18 - Stock-based Compensation Plans - Compensation Cost (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Compensation cost $ 7 $ 7 $ 16 $ 16
Huntsman International LLC [Member]        
Compensation cost $ 7 $ 7 $ 14 $ 15