Quarterly report [Sections 13 or 15(d)]

Note 15 - Accumulated Other Comprehensive Loss - Components and Changes in Accumulated Other Comprehensive Loss (Details)

v3.25.3
Note 15 - Accumulated Other Comprehensive Loss - Components and Changes in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Balance $ 3,061 $ 3,171 $ 3,163 $ 3,336 $ 3,394 $ 3,478 $ 3,163 $ 3,478
Other comprehensive income, net of tax 1 73 33 72 (24) (23) 107 25
Balance 3,001 3,061 3,171 3,345 3,336 3,394 3,001 3,345
Huntsman International LLC [Member]                
Balance 3,068 3,173 3,170 3,345 3,403 3,491 3,170 3,491
Other comprehensive income, net of tax 1 73 33 72 (24) (23) 107 25
Balance 3,008 3,068 3,173 3,357 3,345 3,403 3,008 3,357
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]                
Balance     (675) [1]     (614) [2],[3] (675) [1] (614) [2],[3]
Other comprehensive income (loss) before reclassifications, gross             91 [1] (9) [3]
Tax impact             8 [1] 1 [2],[3]
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 [1] 9 [2],[3]
Tax impact             0 [1] 0 [2],[3]
Other comprehensive income, net of tax             99 [1] 1 [2],[3]
Balance (576) [1]     (613) [2],[3]     (576) [1] (613) [2],[3]
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]                
Balance     (680) [5]     (619) [6] (680) [5] (619) [6]
Other comprehensive income (loss) before reclassifications, gross             91 [5] (9) [6]
Tax impact             8 [5] 1 [6]
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 [5] 9 [6]
Tax impact             0 [5] 0 [6]
Other comprehensive income, net of tax             99 [5] 1 [6]
Balance (581) [5]     (618) [6]     (581) [5] (618) [6]
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]                
Balance     (552) [7]     (656) [8],[9],[10] (552) [7] (656) [8],[9],[10]
Other comprehensive income (loss) before reclassifications, gross             (12) [7] 2 [8]
Tax impact             0 [7] 0 [8],[9],[10]
Amounts reclassified from accumulated other comprehensive loss, gross [11],[12] 5     6     15 [4],[7] 19 [4],[8],[9],[10]
Tax impact [11],[12] 0     0     (1) [7] (1) [8],[9],[10]
Other comprehensive income, net of tax             2 [7] 20 [8],[9],[10]
Balance (550) [7]     (636) [8],[9],[10]     (550) [7] (636) [8],[9],[10]
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]                
Balance     (528) [13]     (632) [14],[15] (528) [13] (632) [14],[15]
Other comprehensive income (loss) before reclassifications, gross             (12) [13] 2 [14]
Tax impact             0 [13] 0 [14],[15]
Amounts reclassified from accumulated other comprehensive loss, gross [11],[12] 5     6     15 [4],[13] 19 [4],[14],[15]
Tax impact [11],[12] 0     0     (1) [13] (1) [14],[15]
Other comprehensive income, net of tax             2 [13] 20 [14],[15]
Balance (526) [13]     (612) [14],[15]     (526) [13] (612) [14],[15]
Accumulated Other Comprehensive Income, Other, Net, Including Portion Attributable to Noncontrolling Interest [Member]                
Balance     0     (3) 0 (3)
Other comprehensive income (loss) before reclassifications, gross             6 4
Tax impact             0 0
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 0
Tax impact             0 0
Other comprehensive income, net of tax             6 4
Balance 6     1     6 1
Accumulated Other Comprehensive Income, Other, Net, Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]                
Balance     (4)     (7) (4) (7)
Other comprehensive income (loss) before reclassifications, gross             6 4
Tax impact             0 0
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 0
Tax impact             0 0
Other comprehensive income, net of tax             6 4
Balance 2     (3)     2 (3)
Accumulated Other Comprehensive Income (Loss), Unconsolidated Affiliates Including Portion Attributable to Noncontrolling Interest [Member]                
Balance     (1,227)     (1,273) (1,227) (1,273)
Other comprehensive income (loss) before reclassifications, gross             85 (3)
Tax impact             8 1
Amounts reclassified from accumulated other comprehensive loss, gross [4]             15 28
Tax impact             (1) (1)
Other comprehensive income, net of tax             107 25
Balance (1,120)     (1,248)     (1,120) (1,248)
Accumulated Other Comprehensive Income (Loss), Unconsolidated Affiliates Including Portion Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]                
Balance     (1,212)     (1,258) (1,212) (1,258)
Other comprehensive income (loss) before reclassifications, gross             85 (3)
Tax impact             8 1
Amounts reclassified from accumulated other comprehensive loss, gross [4]             15 28
Tax impact             (1) (1)
Other comprehensive income, net of tax             107 25
Balance (1,105)     (1,233)     (1,105) (1,233)
AOCI Attributable to Noncontrolling Interest [Member]                
Balance     27     28 27 28
Other comprehensive income (loss) before reclassifications, gross             (1) (4)
Tax impact             0 0
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 0
Tax impact             0 0
Other comprehensive income, net of tax             (1) (4)
Balance 26     24     26 24
AOCI Attributable to Noncontrolling Interest [Member] | Huntsman International LLC [Member]                
Balance     27     28 27 28
Other comprehensive income (loss) before reclassifications, gross             (1) (4)
Tax impact             0 0
Amounts reclassified from accumulated other comprehensive loss, gross [4]             0 0
Tax impact             0 0
Other comprehensive income, net of tax             (1) (4)
Balance 26     24     26 24
AOCI Attributable to Parent [Member]                
Balance (1,094) (1,167) (1,200) (1,293) (1,269) (1,245) (1,200) (1,245)
Other comprehensive income (loss) before reclassifications, gross             84 (7)
Tax impact             8 1
Amounts reclassified from accumulated other comprehensive loss, gross [4]             15 28
Tax impact             (1) (1)
Other comprehensive income, net of tax 0 73 33 69 (24) (24) 106 21
Balance (1,094) (1,094) (1,167) (1,224) (1,293) (1,269) (1,094) (1,224)
AOCI Attributable to Parent [Member] | Huntsman International LLC [Member]                
Balance (1,079) (1,152) (1,185) (1,278) (1,254) (1,230) (1,185) (1,230)
Other comprehensive income (loss) before reclassifications, gross             84 (7)
Tax impact             8 1
Amounts reclassified from accumulated other comprehensive loss, gross [4]             15 28
Tax impact             (1) (1)
Other comprehensive income, net of tax 0 73 33 69 (24) (24) 106 21
Balance $ (1,079) $ (1,079) $ (1,152) $ (1,209) $ (1,278) $ (1,254) $ (1,079) $ (1,209)
[1] Amounts are net of tax of $52 million and $60 million as of September 30, 2025 and January 1, 2025, respectively. ?
[2] Amounts are net of tax of $55 million and $56 million as of September 30, 2024 and January 1, 2024, respectively.
[3] Amounts are net of tax of $56 million as of both June 30, 2024 and January 1, 2024.
[4] See tables below for details about pension and other postretirement benefits reclassifications.
[5] Amounts are net of tax of $39 million and $47 million as of September 30, 2025 and January 1, 2025, respectively.
[6] Amounts are net of tax of $42 million and $43 million as of September 30, 2024 and January 1, 2024, respectively.
[7] Amounts are net of tax of $60 million and $61 million as of September 30, 2025 and January 1, 2025, respectively.
[8] Amounts are net of tax of $66 million and $67 million as of June 30, 2024 and January 1, 2024, respectively.
[9] Amounts are net of tax of $66 million and $67 million as of September 30, 2024 and January 1, 2024, respectively.
[10] Amounts are net of tax of $67 million as of both March 31, 2024 and January 1, 2024.
[11] Details of amounts reclassified from accumulated other comprehensive loss relate only to pension and other postretirement benefits.
[12] Pension and other postretirement benefits amounts in parentheses indicate credits on our condensed consolidated statements of operations. ?
[13] Amounts are net of tax of $84 million and $85 million as of September 30, 2025 and January 1, 2025, respectively.
[14] Amounts are net of tax of $90 million and $91 million as of June 30, 2024 and January 1, 2024, respectively.
[15] Amounts are net of tax of $90 million and $91 million as of September 30, 2024 and January 1, 2024, respectively.