Note 18 - Income Taxes (Details Textual) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Income Tax Expense (Benefit)	$ 11	$ 15
Praxair/Linde [Member]
Income Tax Expense (Benefit)		8
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	2	9
Huntsman International LLC [Member]
Income Tax Expense (Benefit)	$ 11	$ 17

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

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+ Details