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

Note 25 - Accumulated Other Comprehensive Loss (Details Textual)

v3.25.4
Note 25 - Accumulated Other Comprehensive Loss (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
AOCI Tax, Attributable to Parent, Foreign Currency Translation Adjustments $ 52,000 $ 60,000 $ 56,000
AOCI Tax, Attributable to Parent, Pension and Other Postretirement Benefit Adjustments 50,000 61,000 67,000
Huntsman International LLC [Member]      
AOCI Tax, Attributable to Parent, Foreign Currency Translation Adjustments 39,000 47,000 43,000
AOCI Tax, Attributable to Parent, Pension and Other Postretirement Benefit Adjustments 74,000 85,000 91,000
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax (24,000) [1],[2] (30,000) [2],[3],[4] (96,000)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax (24,000) [2],[5],[6],[7] (30,000) [2],[6],[7],[8] (96,000)
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Discontinued Operations [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax 0 0 1,000
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Discontinued Operations [Member] | Huntsman International LLC [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax 0 0 1,000
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax [9],[10] (3,000) (6,000) (73,000)
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax (3,000) (6,000) (73,000)
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued Operations, Held-for-Sale or Disposed of by Sale [Member]      
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax     (67,000)
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued Operations, Held-for-Sale or Disposed of by Sale [Member] | Huntsman International LLC [Member]      
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax     (67,000)
Accumulated Defined Benefit Plans Adjustment, Curtailment Gain (Loss) Attributable to Noncontrolling Interest [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax [9],[10] (0) (0) 1,000
Accumulated Defined Benefit Plans Adjustment, Curtailment Gain (Loss) Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax $ (0) $ (0) 1,000
Accumulated Defined Benefit Plans Adjustment, Curtailment Gain (Loss) Attributable to Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued Operations, Held-for-Sale or Disposed of by Sale [Member]      
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax     1,000
Accumulated Defined Benefit Plans Adjustment, Curtailment Gain (Loss) Attributable to Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Discontinued Operations, Held-for-Sale or Disposed of by Sale [Member] | Huntsman International LLC [Member]      
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax     $ 1,000
[1] Amounts are net of tax of $50 million and $61 million as of December 31, 2025 and January 1, 2025, respectively.
[2] See table below for details about these reclassifications.
[3] Amounts are net of tax of $61 million and $67 million as of December 31, 2024 and January 1, 2024, respectively.
[4] Amounts are net of tax of $67 million and $31 million as of December 31, 2023 and January 1, 2023, respectively.
[5] Amounts are net of tax of $74 million and $85 million as of December 31, 2025 and January 1, 2025, respectively.
[6] Amounts contain approximately nil, nil and $1 million of prior service credit and actuarial loss related to discontinued operations for the years ended December 31, 2025, 2024 and 2023, respectively.
[7] Details of amounts reclassified from accumulated other comprehensive loss relate only to pension and other postretirement benefits.
[8] Amounts are net of tax of $85 million and $91 million as of December 31, 2024 and January 1, 2024, respectively.
[9] In connection with the sale of our Textile Effects Business, we recognized $67 million of pension settlement losses and $1 million of pension curtailment gains for the year ended December 31, 2023.
[10] These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See “Note 19. Employee Benefit Plans.”