v3.26.1
Note 8 - Debt - Notes Outstanding (Details) - Huntsman International LLC [Member]
$ in Millions
Mar. 31, 2026
USD ($)
Senior Notes Maturing May 2029 [Member]  
Principal outstanding $ 750
Unamortized premiums, discounts and debt issuance costs $ 5
Debt Instrument, Interest Rate, Stated Percentage 4.50%
Senior Notes Maturing June 2031 [Member]  
Principal outstanding $ 400
Unamortized premiums, discounts and debt issuance costs $ 2
Debt Instrument, Interest Rate, Stated Percentage 2.95%
Senior Note Maturing in October 2034 [Member]  
Principal outstanding $ 350
Unamortized premiums, discounts and debt issuance costs $ 4
Debt Instrument, Interest Rate, Stated Percentage 5.70%