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

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

Note 20 - Income Taxes - Tax Years Open to Examination (Details)

Note 20 - Income Taxes - Tax Years Open to Examination (Details)	12 Months Ended
	Dec. 31, 2025
Foreign Tax Jurisdiction [Member] \| Administration of the Treasury, Belgium [Member]
Income tax years subject to examination	2024 2025
Foreign Tax Jurisdiction [Member] \| State Administration of Taxation, China [Member]
Income tax years subject to examination	2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Federal Ministry of Finance, Germany [Member]
Income tax years subject to examination	2018 2019 2020 2021 2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Inland Revenue, Hong Kong [Member]
Income tax years subject to examination	2019 2020 2021 2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Ministry of Finance, India [Member]
Income tax years subject to examination	2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Mexican Tax Authority [Member]
Income tax years subject to examination	2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Swiss Federal Tax Administration (FTA) [Member]
Income tax years subject to examination	2017 2018 2019 2020 2021 2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| Tax and Customs Administration, Netherlands [Member]
Income tax years subject to examination	2021 2022 2023 2024 2025
Foreign Tax Jurisdiction [Member] \| His Majesty's Revenue and Customs (HMRC) [Member]
Income tax years subject to examination	2023 2024 2025
Domestic Tax Jurisdiction [Member] \| Internal Revenue Service (IRS) [Member]
Income tax years subject to examination	2017 2018 2019 2020 2021 2022 2023 2024 2025