Note 8 - Debt (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May 20, 2022 |
Jun. 30, 2024 |
Mar. 31, 2024 |
Jun. 30, 2024 |
Jun. 30, 2023 |
Jan. 31, 2024 |
Dec. 31, 2023 |
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| Long-Term Debt, Current Maturities | [1] | $ 576 | $ 576 | $ 12 | |||||||||
| Long-Term Debt, Excluding Current Maturities | [1] | 1,344 | 1,344 | 1,676 | |||||||||
| Repayments of Notes Payable | 218 | $ (0) | |||||||||||
| Debt Issuance Costs, Net | 6 | $ 6 | 7 | ||||||||||
| Shanghai Lianheng Isocyanate Company Ltd. (“SLIC”) [Member] | |||||||||||||
| Accounts Receivable, after Allowance for Credit Loss | $ 20 | ||||||||||||
| Arabian Amines Company [Member] | |||||||||||||
| Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 50.00% | 50.00% | |||||||||||
| Total Debt, Excluding Debt to Affiliates | 21 | $ 21 | |||||||||||
| Long-Term Debt, Current Maturities | 9 | 9 | |||||||||||
| Long-Term Debt, Excluding Current Maturities | 12 | 12 | |||||||||||
| Huntsman International LLC [Member] | |||||||||||||
| Long-Term Debt, Current Maturities | [1] | 576 | 576 | 12 | |||||||||
| Long-Term Debt, Excluding Current Maturities | [1] | 1,344 | 1,344 | 1,676 | |||||||||
| Repayments of Notes Payable | 218 | $ (0) | |||||||||||
| Huntsman International LLC [Member] | The Revolving Credit Facility [Member] | |||||||||||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 1,200 | 1,200 | 1,200 | ||||||||||
| Line Of Credit Facility, Contingent Increase, Additional Borrowing Capacity | $ 500 | ||||||||||||
| Letters of Credit Outstanding, Amount | 6 | $ 6 | |||||||||||
| Debt Instrument, Basis Spread on Variable Rate | [2],[3] | 1.525% | |||||||||||
| Huntsman International LLC [Member] | The Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | |||||||||||||
| Debt Instrument, Basis Spread on Variable Rate | 1.525% | ||||||||||||
| Huntsman International LLC [Member] | Accounts Receivable Programs [Member] | |||||||||||||
| Letters of Credit Outstanding, Amount | 6 | $ 6 | |||||||||||
| Huntsman International LLC [Member] | Accounts Receivable Programs [Member] | Asset Pledged as Collateral [Member] | |||||||||||||
| Accounts Receivable, after Allowance for Credit Loss | 310 | $ 310 | $ 224 | ||||||||||
| Huntsman Polyurethanes Shanghai Ltd. [Member] | Shanghai Lianheng Isocyanate Company Ltd. (“SLIC”) [Member] | |||||||||||||
| Repayments of Notes Payable | $ 190 | ||||||||||||
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