| Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
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Pension and |
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|
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|
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Foreign |
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|
other |
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|
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|
Amounts |
|
|
Amounts |
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| |
|
currency |
|
|
postretirement |
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|
|
|
|
|
|
|
|
|
attributable to |
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|
attributable to |
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| |
|
translation |
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|
benefits |
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|
|
|
|
|
|
|
|
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noncontrolling |
|
|
Huntsman |
|
| |
|
adjustment(1) |
|
|
adjustments(2) |
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|
Other, net |
|
|
Total |
|
|
interests |
|
|
Corporation |
|
| Beginning balance, January 1, 2025 |
|
$ |
(675 |
) |
|
$ |
(552 |
) |
|
$ |
— |
|
|
$ |
(1,227 |
) |
|
$ |
27 |
|
|
$ |
(1,200 |
) |
| Other comprehensive income before reclassifications, gross |
|
|
124 |
|
|
|
49 |
|
|
|
4 |
|
|
|
177 |
|
|
|
(4 |
) |
|
|
173 |
|
| Tax impact |
|
|
8 |
|
|
|
(9 |
) |
|
|
— |
|
|
|
(1 |
) |
|
|
— |
|
|
|
(1 |
) |
| Amounts reclassified from accumulated other comprehensive loss, gross(3) |
|
|
— |
|
|
|
24 |
|
|
|
— |
|
|
|
24 |
|
|
|
— |
|
|
|
24 |
|
| Tax impact |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
| Net current-period other comprehensive income |
|
|
132 |
|
|
|
62 |
|
|
|
4 |
|
|
|
198 |
|
|
|
(4 |
) |
|
|
194 |
|
| Ending balance, December 31, 2025 |
|
$ |
(543 |
) |
|
$ |
(490 |
) |
|
$ |
4 |
|
|
$ |
(1,029 |
) |
|
$ |
23 |
|
|
$ |
(1,006 |
) |
| |
|
|
|
|
|
Pension and |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Foreign |
|
|
other |
|
|
|
|
|
|
|
|
|
|
Amounts |
|
|
Amounts |
|
| |
|
currency |
|
|
postretirement |
|
|
|
|
|
|
|
|
|
|
attributable to |
|
|
attributable to |
|
| |
|
translation |
|
|
benefits |
|
|
|
|
|
|
|
|
|
|
noncontrolling |
|
|
Huntsman |
|
| |
|
adjustment(1) |
|
|
adjustments(2) |
|
|
Other, net |
|
|
Total |
|
|
interests |
|
|
Corporation |
|
| Beginning balance, January 1, 2024 |
|
$ |
(614 |
) |
|
$ |
(656 |
) |
|
$ |
(3 |
) |
|
$ |
(1,273 |
) |
|
$ |
28 |
|
|
$ |
(1,245 |
) |
| Other comprehensive (loss) income before reclassifications, gross |
|
|
(66 |
) |
|
|
80 |
|
|
|
3 |
|
|
|
17 |
|
|
|
(1 |
) |
|
|
16 |
|
| Tax impact |
|
|
(4 |
) |
|
|
(4 |
) |
|
|
— |
|
|
|
(8 |
) |
|
|
— |
|
|
|
(8 |
) |
| Amounts reclassified from accumulated other comprehensive loss, gross(3) |
|
|
9 |
|
|
|
30 |
|
|
|
— |
|
|
|
39 |
|
|
|
— |
|
|
|
39 |
|
| Tax impact |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
| Net current-period other comprehensive (loss) income |
|
|
(61 |
) |
|
|
104 |
|
|
|
3 |
|
|
|
46 |
|
|
|
(1 |
) |
|
|
45 |
|
| Ending balance, December 31, 2024 |
|
$ |
(675 |
) |
|
$ |
(552 |
) |
|
$ |
— |
|
|
$ |
(1,227 |
) |
|
$ |
27 |
|
|
$ |
(1,200 |
) |
| |
|
|
|
|
|
Pension |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Foreign |
|
|
and other |
|
|
|
|
|
|
|
|
|
|
Amounts |
|
|
Amounts |
|
| |
|
currency |
|
|
postretirement |
|
|
|
|
|
|
|
|
|
|
attributable to |
|
|
attributable to |
|
| |
|
translation |
|
|
benefits |
|
|
|
|
|
|
|
|
|
|
noncontrolling |
|
|
Huntsman |
|
| |
|
adjustment(1) |
|
|
adjustments(2) |
|
|
Other, net |
|
|
Total |
|
|
interests |
|
|
International |
|
| Beginning balance, January 1, 2025 |
|
$ |
(680 |
) |
|
$ |
(528 |
) |
|
$ |
(4 |
) |
|
$ |
(1,212 |
) |
|
$ |
27 |
|
|
$ |
(1,185 |
) |
| Other comprehensive income before reclassifications, gross |
|
|
125 |
|
|
|
49 |
|
|
|
4 |
|
|
|
178 |
|
|
|
(4 |
) |
|
|
174 |
|
| Tax impact |
|
|
8 |
|
|
|
(9 |
) |
|
|
— |
|
|
|
(1 |
) |
|
|
— |
|
|
|
(1 |
) |
| Amounts reclassified from accumulated other comprehensive loss, gross(3) |
|
|
— |
|
|
|
24 |
|
|
|
— |
|
|
|
24 |
|
|
|
— |
|
|
|
24 |
|
| Tax impact |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
| Net current-period other comprehensive income |
|
|
133 |
|
|
|
62 |
|
|
|
4 |
|
|
|
199 |
|
|
|
(4 |
) |
|
|
195 |
|
| Ending balance, December 31, 2025 |
|
$ |
(547 |
) |
|
$ |
(466 |
) |
|
$ |
— |
|
|
$ |
(1,013 |
) |
|
$ |
23 |
|
|
$ |
(990 |
) |
| |
|
|
|
|
|
Pension |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
Foreign |
|
|
and other |
|
|
|
|
|
|
|
|
|
|
Amounts |
|
|
Amounts |
|
| |
|
currency |
|
|
postretirement |
|
|
|
|
|
|
|
|
|
|
attributable to |
|
|
attributable to |
|
| |
|
translation |
|
|
benefits |
|
|
|
|
|
|
|
|
|
|
noncontrolling |
|
|
Huntsman |
|
| |
|
adjustment(1) |
|
|
adjustments(2) |
|
|
Other, net |
|
|
Total |
|
|
interests |
|
|
International |
|
| Beginning balance, January 1, 2024 |
|
$ |
(619 |
) |
|
$ |
(632 |
) |
|
$ |
(7 |
) |
|
$ |
(1,258 |
) |
|
$ |
28 |
|
|
$ |
(1,230 |
) |
| Other comprehensive (loss) income before reclassifications, gross |
|
|
(66 |
) |
|
|
80 |
|
|
|
3 |
|
|
|
17 |
|
|
|
(1 |
) |
|
|
16 |
|
| Tax impact |
|
|
(4 |
) |
|
|
(4 |
) |
|
|
— |
|
|
|
(8 |
) |
|
|
— |
|
|
|
(8 |
) |
| Amounts reclassified from accumulated other comprehensive loss, gross(3) |
|
|
9 |
|
|
|
30 |
|
|
|
— |
|
|
|
39 |
|
|
|
— |
|
|
|
39 |
|
| Tax impact |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
|
|
— |
|
|
|
(2 |
) |
| Net current-period other comprehensive (loss) income |
|
|
(61 |
) |
|
|
104 |
|
|
|
3 |
|
|
|
46 |
|
|
|
(1 |
) |
|
|
45 |
|
| Ending balance, December 31, 2024 |
|
$ |
(680 |
) |
|
$ |
(528 |
) |
|
$ |
(4 |
) |
|
$ |
(1,212 |
) |
|
$ |
27 |
|
|
$ |
(1,185 |
) |
|
| Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
| |
|
Amounts reclassified |
|
|
|
| |
|
from accumulated other |
|
|
|
| |
|
comprehensive loss |
|
|
Affected line item in |
| Details about accumulated other |
|
Year ended December 31, |
|
|
our statements |
| comprehensive loss components(1)(2): |
|
2025 |
|
|
2024 |
|
|
2023 |
|
|
of operations |
| Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Actuarial loss |
|
$ |
30 |
|
|
$ |
33 |
|
|
$ |
34 |
|
(3)(4) |
Other income (expense), net |
| Prior service credit |
|
|
(9 |
) |
|
|
(9 |
) |
|
|
(10 |
) |
(3)(4) |
Other income (expense), net |
| Settlement loss |
|
|
3 |
|
|
|
6 |
|
|
|
73 |
|
(5) |
Other income (expense), net |
| Curtailment gain |
|
|
— |
|
|
|
— |
|
|
|
(1 |
) |
(5) |
Other income (expense), net |
| |
|
|
24 |
|
|
|
30 |
|
|
|
96 |
|
|
|
| |
|
|
(2 |
) |
|
|
(2 |
) |
|
|
23 |
|
|
Income tax |
| Total reclassifications for the period |
|
$ |
22 |
|
|
$ |
28 |
|
|
$ |
119 |
|
|
|
| |
|
Amounts reclassified |
|
|
|
| |
|
from accumulated other |
|
|
|
| |
|
comprehensive loss |
|
|
Affected line item in |
| Details about accumulated other |
|
Year ended December 31, |
|
|
our statements |
| comprehensive loss components(1)(2): |
|
2025 |
|
|
2024 |
|
|
2023 |
|
|
of operations |
| Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Actuarial loss |
|
$ |
30 |
|
|
$ |
33 |
|
|
$ |
34 |
|
(3)(4) |
Other income (expense), net |
| Prior service credit |
|
|
(9 |
) |
|
|
(9 |
) |
|
|
(10 |
) |
(3)(4) |
Other income (expense), net |
| Settlement loss |
|
|
3 |
|
|
|
6 |
|
|
|
73 |
|
(5) |
Other income (expense), net |
| Curtailment gain |
|
|
— |
|
|
|
— |
|
|
|
(1 |
) |
(5) |
Other income (expense), net |
| |
|
|
24 |
|
|
|
30 |
|
|
|
96 |
|
|
|
| |
|
|
(2 |
) |
|
|
(2 |
) |
|
|
23 |
|
|
Income tax |
| Total reclassifications for the period |
|
$ |
22 |
|
|
$ |
28 |
|
|
$ |
119 |
|
|
|
|