Annual report [Section 13 and 15(d), not S-K Item 405]

Note 20 - Income Taxes - Summary of Changes in the Deferred Tax Assets Valuation Allowance (Details)

v3.25.4
Note 20 - Income Taxes - Summary of Changes in the Deferred Tax Assets Valuation Allowance (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Valuation allowances as of January 1 $ 255 $ 221 $ 169
Valuation allowances as of December 31 340 255 221
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (85) (34) (52)
Foreign currency movements 26 (13) 3
Decrease to deferred tax assets with no impact on operating tax expense, including an offsetting (decrease) increase to valuation allowances (10) (28) 4
Change in valuation allowances per rate reconciliation (69) (75) (45)
Pre-tax income and losses in jurisdictions with valuation allowances resulting in no tax expense or benefit (64) (46) (30)
Releases of valuation allowances in various jurisdictions 8 0 1
Establishments of valuation allowances in various jurisdictions (13) (29) (16)
Huntsman International LLC [Member]      
Valuation allowances as of January 1 255 221 169
Valuation allowances as of December 31 340 255 221
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount (85) (34) (52)
Foreign currency movements 26 (13) 3
Decrease to deferred tax assets with no impact on operating tax expense, including an offsetting (decrease) increase to valuation allowances (10) (28) 4
Change in valuation allowances per rate reconciliation (69) (75) (45)
Pre-tax income and losses in jurisdictions with valuation allowances resulting in no tax expense or benefit (64) (46) (30)
Releases of valuation allowances in various jurisdictions 8 0 1
Establishments of valuation allowances in various jurisdictions $ (13) $ (29) $ (16)