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Note 7 - Debt - Notes Outstanding (Details) (Parentheticals) $ in Millions, € in Billions | Sep. 30, 2023 USD ($) | Sep. 30, 2023 EUR (€) | Dec. 31, 2022 USD ($)
--- | --- | --- | ---
Carrying amount of debt | $ 1,606 |  | $ 1,737
Huntsman International LLC [Member] | Senior Notes Maturing April 2025 [Member] |  |  |
Carrying amount of debt | 316 | € 0.3 |
Huntsman International LLC [Member] | Senior Notes Maturing February 2029 [Member] |  |  |
Carrying amount of debt | 741 |  |
Huntsman International LLC [Member] | Senior Notes Maturing June 2031 [Member] |  |  |
Carrying amount of debt | $ 397 |  |

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