Note 19 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Expense (Benefit)	$ 3			$ 39		$ 25	$ 32
Effective Income Tax Rate Reconciliation, Write-off Prepaid Asset, Amount					$ 18
Praxair/Linde [Member]
Income Tax Expense (Benefit)			$ 8
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ (13)
European Maleic Anhydride Manufacturing Facility Closure in Moers Germany[Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ (8)
Huntsman International LLC [Member]
Income Tax Expense (Benefit)	$ 4			$ 39		$ 26	$ 32

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details

Huntsman CORP 10-Q