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 |
) |
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$ |
(552 |
) |
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$ |
— |
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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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32 |
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(12 |
) |
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6 |
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26 |
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— |
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26 |
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Tax impact |
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3 |
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— |
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— |
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3 |
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— |
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3 |
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Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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— |
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4 |
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— |
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4 |
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— |
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4 |
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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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Net current-period other comprehensive income (loss) |
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35 |
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(8 |
) |
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6 |
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33 |
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— |
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33 |
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Ending balance, March 31, 2025 |
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$ |
(640 |
) |
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$ |
(560 |
) |
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$ |
6 |
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$ |
(1,194 |
) |
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$ |
27 |
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$ |
(1,167 |
) |
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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, 2024 |
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$ |
(614 |
) |
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$ |
(656 |
) |
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$ |
(3 |
) |
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$ |
(1,273 |
) |
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$ |
28 |
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$ |
(1,245 |
) |
Other comprehensive (loss) income before reclassifications, gross |
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(36 |
) |
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2 |
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5 |
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(29 |
) |
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(1 |
) |
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(30 |
) |
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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6 |
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— |
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6 |
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— |
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6 |
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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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Net current-period other comprehensive (loss) income |
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(36 |
) |
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8 |
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5 |
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(23 |
) |
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(1 |
) |
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(24 |
) |
Ending balance, March 31, 2024 |
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$ |
(650 |
) |
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$ |
(648 |
) |
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$ |
2 |
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$ |
(1,296 |
) |
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$ |
27 |
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$ |
(1,269 |
) |
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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 |
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Beginning balance, January 1, 2025 |
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$ |
(680 |
) |
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$ |
(528 |
) |
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$ |
(4 |
) |
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$ |
(1,212 |
) |
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$ |
27 |
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$ |
(1,185 |
) |
Other comprehensive income (loss) before reclassifications, gross |
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32 |
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(12 |
) |
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6 |
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26 |
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— |
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26 |
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Tax impact |
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3 |
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— |
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— |
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3 |
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— |
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3 |
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Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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— |
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4 |
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— |
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4 |
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— |
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4 |
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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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Net current-period other comprehensive income (loss) |
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|
35 |
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(8 |
) |
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6 |
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33 |
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— |
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33 |
|
Ending balance, March 31, 2025 |
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$ |
(645 |
) |
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$ |
(536 |
) |
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$ |
2 |
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$ |
(1,179 |
) |
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$ |
27 |
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$ |
(1,152 |
) |
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Pension |
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Foreign |
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and other |
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|
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|
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|
Amounts |
|
|
Amounts |
|
|
|
currency |
|
|
postretirement |
|
|
|
|
|
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|
|
|
|
attributable to |
|
|
attributable to |
|
|
|
translation |
|
|
benefits |
|
|
|
|
|
|
|
|
|
|
noncontrolling |
|
|
Huntsman |
|
|
|
adjustments(1) |
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|
adjustments(2) |
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|
Other, net |
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|
Total |
|
|
interests |
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|
International |
|
Beginning balance, January 1, 2024 |
|
$ |
(619 |
) |
|
$ |
(632 |
) |
|
$ |
(7 |
) |
|
$ |
(1,258 |
) |
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$ |
28 |
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$ |
(1,230 |
) |
Other comprehensive (loss) income before reclassifications, gross |
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|
(36 |
) |
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2 |
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|
5 |
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(29 |
) |
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|
(1 |
) |
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|
(30 |
) |
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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|
— |
|
Amounts reclassified from accumulated other comprehensive loss, gross(3) |
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|
— |
|
|
|
6 |
|
|
|
— |
|
|
|
6 |
|
|
|
— |
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|
6 |
|
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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|
|
— |
|
Net current-period other comprehensive (loss) income |
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|
(36 |
) |
|
|
8 |
|
|
|
5 |
|
|
|
(23 |
) |
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|
(1 |
) |
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|
(24 |
) |
Ending balance, March 31, 2024 |
|
$ |
(655 |
) |
|
$ |
(624 |
) |
|
$ |
(2 |
) |
|
$ |
(1,281 |
) |
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$ |
27 |
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|
$ |
(1,254 |
) |
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Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
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Three months ended March 31, |
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2025 |
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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 |
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the statement |
Details about accumulated other |
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other |
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|
other |
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|
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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Prior service credit |
|
$ |
(2 |
) |
|
$ |
(2 |
) |
(3) |
Other income, net |
Actuarial loss |
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|
7 |
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|
8 |
|
(3) |
Other income, net |
Settlement gain |
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|
(1 |
) |
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|
— |
|
(3) |
Other income, net |
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|
|
4 |
|
|
|
6 |
|
|
Total before tax |
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|
— |
|
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|
— |
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|
Income tax (expense) benefit |
Total reclassifications for the period |
|
$ |
4 |
|
|
$ |
6 |
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|
Net of tax |
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|
Three months ended March 31, |
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|
2025 |
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|
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 |
|
|
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 |
|
|
is presented |
Amortization of pension and other postretirement benefits: |
|
|
|
|
|
|
|
|
|
|
Prior service credit |
|
$ |
(2 |
) |
|
$ |
(2 |
) |
(3) |
Other income, net |
Actuarial loss |
|
|
7 |
|
|
|
8 |
|
(3) |
Other income, net |
Settlement gain |
|
|
(1 |
) |
|
|
— |
|
(3) |
Other income, net |
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|
|
4 |
|
|
|
6 |
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Total before tax |
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|
— |
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|
— |
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Income tax (expense) benefit |
Total reclassifications for the period |
|
$ |
4 |
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$ |
6 |
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Net of tax |
|