Quarterly report [Sections 13 or 15(d)]

Note 15 - Accumulated Other Comprehensive Loss - Reclassification Details (Details)

v3.25.3
Note 15 - Accumulated Other Comprehensive Loss - Reclassification Details (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Including Portion Attributable to Noncontrolling Interest [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2] $ (2) $ (3) $ (6) $ (6)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2],[3] (2) (3) (6) (6)
Accumulated Defined Benefit Plans Adjustment, Actuarial Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2] 7 9 22 25
Accumulated Defined Benefit Plans Adjustment, Actuarial Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2],[3] 7 9 22 25
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2] 5 6 15 [4],[5] 19 [5],[6],[7],[8]
Tax impact [1],[2] 0 0 (1) [4] (1) [6],[7],[8]
Total reclassifications for the period [1],[2] 5 6 14 18
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross [1],[2] 5 6 15 [5],[9] 19 [5],[10],[11]
Tax impact [1],[2] 0 0 (1) [9] (1) [10],[11]
Total reclassifications for the period [1],[2] $ 5 $ 6 14 18
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross     (1) 0
Accumulated Defined Benefit Plans Adjustment, Settlement Gain (Loss), Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]        
Amounts reclassified from accumulated other comprehensive loss, gross     $ (1) $ 0
[1] Details of amounts reclassified from accumulated other comprehensive loss relate only to pension and other postretirement benefits.
[2] Pension and other postretirement benefits amounts in parentheses indicate credits on our condensed consolidated statements of operations. ?
[3] These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See “Note 12. Employee Benefit Plans.”
[4] Amounts are net of tax of $60 million and $61 million as of September 30, 2025 and January 1, 2025, respectively.
[5] See tables below for details about pension and other postretirement benefits reclassifications.
[6] Amounts are net of tax of $66 million and $67 million as of June 30, 2024 and January 1, 2024, respectively.
[7] Amounts are net of tax of $66 million and $67 million as of September 30, 2024 and January 1, 2024, respectively.
[8] Amounts are net of tax of $67 million as of both March 31, 2024 and January 1, 2024.
[9] Amounts are net of tax of $84 million and $85 million as of September 30, 2025 and January 1, 2025, respectively.
[10] Amounts are net of tax of $90 million and $91 million as of June 30, 2024 and January 1, 2024, respectively.
[11] Amounts are net of tax of $90 million and $91 million as of September 30, 2024 and January 1, 2024, respectively.