Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
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Pension |
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Foreign |
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and other |
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Amounts |
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Amounts |
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currency |
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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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noncontrolling |
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Huntsman |
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adjustments(1) |
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adjustments(2) |
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Other, net |
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Total |
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interests |
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Corporation |
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Beginning balance, January 1, 2025 |
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$ |
(675 |
) |
|
$ |
(552 |
) |
|
$ |
— |
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|
$ |
(1,227 |
) |
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$ |
27 |
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$ |
(1,200 |
) |
Other comprehensive income (loss) before reclassifications, gross |
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94 |
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(12 |
) |
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6 |
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88 |
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— |
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88 |
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Tax impact |
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9 |
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— |
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— |
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9 |
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— |
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9 |
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Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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— |
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10 |
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— |
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10 |
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— |
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10 |
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Tax impact |
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— |
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(1 |
) |
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— |
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(1 |
) |
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— |
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(1 |
) |
Net current-period other comprehensive income (loss) |
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103 |
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(3 |
) |
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6 |
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106 |
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— |
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106 |
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Ending balance, June 30, 2025 |
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$ |
(572 |
) |
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$ |
(555 |
) |
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$ |
6 |
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$ |
(1,121 |
) |
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$ |
27 |
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$ |
(1,094 |
) |
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Pension |
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Foreign |
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and other |
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Amounts |
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Amounts |
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currency |
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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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noncontrolling |
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Huntsman |
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adjustments(1) |
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adjustments(2) |
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Other, net |
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Total |
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interests |
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Corporation |
|
Beginning balance, January 1, 2024 |
|
$ |
(614 |
) |
|
$ |
(656 |
) |
|
$ |
(3 |
) |
|
$ |
(1,273 |
) |
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$ |
28 |
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|
$ |
(1,245 |
) |
Other comprehensive (loss) income before reclassifications, gross |
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(64 |
) |
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2 |
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3 |
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(59 |
) |
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(1 |
) |
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|
(60 |
) |
Tax impact |
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— |
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— |
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— |
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— |
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— |
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— |
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Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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— |
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13 |
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— |
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13 |
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— |
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13 |
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Tax impact |
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— |
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(1 |
) |
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— |
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(1 |
) |
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— |
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(1 |
) |
Net current-period other comprehensive (loss) income |
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(64 |
) |
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14 |
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3 |
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(47 |
) |
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(1 |
) |
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(48 |
) |
Ending balance, June 30, 2024 |
|
$ |
(678 |
) |
|
$ |
(642 |
) |
|
$ |
— |
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$ |
(1,320 |
) |
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$ |
27 |
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|
$ |
(1,293 |
) |
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Pension |
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Foreign |
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and other |
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Amounts |
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Amounts |
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currency |
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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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noncontrolling |
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|
Huntsman |
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|
adjustments(1) |
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|
adjustments(2) |
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Other, net |
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Total |
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|
interests |
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|
International |
|
Beginning balance, January 1, 2025 |
|
$ |
(680 |
) |
|
$ |
(528 |
) |
|
$ |
(4 |
) |
|
$ |
(1,212 |
) |
|
$ |
27 |
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|
$ |
(1,185 |
) |
Other comprehensive income (loss) before reclassifications, gross |
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|
94 |
|
|
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(12 |
) |
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6 |
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|
88 |
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|
— |
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|
|
88 |
|
Tax impact |
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|
9 |
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— |
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|
— |
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|
9 |
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|
— |
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|
9 |
|
Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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|
— |
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|
10 |
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|
|
— |
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|
10 |
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|
— |
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|
10 |
|
Tax impact |
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— |
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(1 |
) |
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— |
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(1 |
) |
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— |
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|
|
(1 |
) |
Net current-period other comprehensive income (loss) |
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|
103 |
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|
(3 |
) |
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6 |
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|
106 |
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— |
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|
106 |
|
Ending balance, June 30, 2025 |
|
$ |
(577 |
) |
|
$ |
(531 |
) |
|
$ |
2 |
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|
$ |
(1,106 |
) |
|
$ |
27 |
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|
$ |
(1,079 |
) |
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Pension |
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|
|
|
Foreign |
|
|
and other |
|
|
|
|
|
|
|
|
|
|
Amounts |
|
|
Amounts |
|
|
|
currency |
|
|
postretirement |
|
|
|
|
|
|
|
|
|
|
attributable to |
|
|
attributable to |
|
|
|
translation |
|
|
benefits |
|
|
|
|
|
|
|
|
|
|
noncontrolling |
|
|
Huntsman |
|
|
|
adjustments(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 |
|
|
(64 |
) |
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|
2 |
|
|
|
3 |
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|
|
(59 |
) |
|
|
(1 |
) |
|
|
(60 |
) |
Tax impact |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
Amounts reclassified from accumulated other comprehensive loss, gross(3) |
|
|
— |
|
|
|
13 |
|
|
|
— |
|
|
|
13 |
|
|
|
— |
|
|
|
13 |
|
Tax impact |
|
|
— |
|
|
|
(1 |
) |
|
|
— |
|
|
|
(1 |
) |
|
|
— |
|
|
|
(1 |
) |
Net current-period other comprehensive (loss) income |
|
|
(64 |
) |
|
|
14 |
|
|
|
3 |
|
|
|
(47 |
) |
|
|
(1 |
) |
|
|
(48 |
) |
Ending balance, June 30, 2024 |
|
$ |
(683 |
) |
|
$ |
(618 |
) |
|
$ |
(4 |
) |
|
$ |
(1,305 |
) |
|
$ |
27 |
|
|
$ |
(1,278 |
) |
|
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
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|
Three months ended June 30, |
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|
2025 |
|
|
2024 |
|
|
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|
Amounts reclassified |
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|
Amounts reclassified |
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|
Affected line item in |
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|
from accumulated |
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|
from accumulated |
|
|
the statement |
Details about accumulated other |
|
other |
|
|
other |
|
|
where net income |
comprehensive loss components(1)(2): |
|
comprehensive loss |
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|
comprehensive loss |
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|
is presented |
Amortization of pension and other postretirement benefits: |
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|
|
|
|
|
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|
|
|
Prior service credit |
|
$ |
(2 |
) |
|
$ |
(1 |
) |
(3) |
Other income, net |
Actuarial loss |
|
|
8 |
|
|
|
8 |
|
(3) |
Other income, net |
|
|
|
6 |
|
|
|
7 |
|
|
Total before tax |
|
|
|
(1 |
) |
|
|
— |
|
|
Income tax |
Total reclassifications for the period |
|
$ |
5 |
|
|
$ |
7 |
|
|
Net of tax |
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|
Six months ended June 30, |
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|
|
|
|
2025 |
|
|
2024 |
|
|
|
|
|
Amounts reclassified |
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|
Amounts reclassified |
|
|
Affected line item in |
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|
from accumulated |
|
|
from accumulated |
|
|
the statement |
Details about accumulated other |
|
other |
|
|
other |
|
|
where net income |
comprehensive loss components(1)(2): |
|
comprehensive loss |
|
|
comprehensive loss |
|
|
is presented |
Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
Prior service credit |
|
$ |
(4 |
) |
|
$ |
(3 |
) |
(3) |
Other income, net |
Actuarial loss |
|
|
15 |
|
|
|
16 |
|
(3) |
Other income, net |
Settlement gain |
|
|
(1 |
) |
|
|
— |
|
(3) |
Other income, net |
|
|
|
10 |
|
|
|
13 |
|
|
Total before tax |
|
|
|
(1 |
) |
|
|
(1 |
) |
|
Income tax |
Total reclassifications for the period |
|
$ |
9 |
|
|
$ |
12 |
|
|
Net of tax |
|
|
Three months ended June 30, |
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|
2025 |
|
|
2024 |
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|
Amounts reclassified |
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|
Amounts reclassified |
|
|
Affected line item in |
|
|
from accumulated |
|
|
from accumulated |
|
|
the statement |
Details about accumulated other |
|
other |
|
|
other |
|
|
where net income |
comprehensive loss components(1)(2): |
|
comprehensive loss |
|
|
comprehensive loss |
|
|
is presented |
Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
Prior service credit |
|
$ |
(2 |
) |
|
$ |
(1 |
) |
(3) |
Other income, net |
Actuarial loss |
|
|
8 |
|
|
|
8 |
|
(3) |
Other income, net |
|
|
|
6 |
|
|
|
7 |
|
|
Total before tax |
|
|
|
(1 |
) |
|
|
— |
|
|
Income tax |
Total reclassifications for the period |
|
$ |
5 |
|
|
$ |
7 |
|
|
Net of tax |
|
|
Six months ended June 30, |
|
|
|
|
|
2025 |
|
|
2024 |
|
|
|
|
|
Amounts reclassified |
|
|
Amounts reclassified |
|
|
Affected line item in |
|
|
from accumulated |
|
|
from accumulated |
|
|
the statement |
Details about accumulated other |
|
other |
|
|
other |
|
|
where net income |
comprehensive loss components(1)(2): |
|
comprehensive loss |
|
|
comprehensive loss |
|
|
is presented |
Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
Prior service credit |
|
$ |
(4 |
) |
|
$ |
(3 |
) |
(3) |
Other income, net |
Actuarial loss |
|
|
15 |
|
|
|
16 |
|
(3) |
Other income, net |
Settlement gain |
|
|
(1 |
) |
|
|
— |
|
(3) |
Other income, net |
|
|
|
10 |
|
|
|
13 |
|
|
Total before tax |
|
|
|
(1 |
) |
|
|
(1 |
) |
|
Income tax |
Total reclassifications for the period |
|
$ |
9 |
|
|
$ |
12 |
|
|
Net of tax |
|