Note 15 - Accumulated Other Comprehensive Loss (Details Textual) - USD ($) $ in Millions |
Sep. 30, 2025 |
Jan. 01, 2025 |
Sep. 30, 2024 |
Jan. 01, 2024 |
|---|---|---|---|---|
| AOCI Tax, Attributable to Parent, Foreign Currency Translation Adjustments | $ 52 | $ 60 | $ 55 | $ 56 |
| AOCI Tax, Attributable to Parent, Pension and Other Postretirement Benefit Adjustments | 60 | 61 | 66 | 67 |
| Huntsman International LLC [Member] | ||||
| AOCI Tax, Attributable to Parent, Foreign Currency Translation Adjustments | 39 | 47 | 42 | 43 |
| AOCI Tax, Attributable to Parent, Pension and Other Postretirement Benefit Adjustments | $ 84 | $ 85 | $ 90 | $ 91 |
| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) from foreign currency translation adjustments attributable to parent. No definition available.
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| X | ||||||||||
- Definition Amount of tax expense (benefit) allocated to accumulated other comprehensive income (loss) from pension and other postretirement benefit adjustments attributable to parent. No definition available.
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| X | ||||||||||
- Details
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