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Pension, Other Postretirement Benefits and Savings Plans - Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Pension Plan [Member] | UNITED STATES |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Prior service (credit) cost | $ 0 | $ 3
Net actuarial loss | 1,690 | 1,744
Gross amount recognized | 1,690 | 1,747
Deferred income taxes | 118 | 103
Minority shareholders’ equity | 0 | 0
Net amount recognized | 1,808 | 1,850
Pension Plan [Member] | Foreign Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Prior service (credit) cost | 17 | 22
Net actuarial loss | 492 | 524
Gross amount recognized | 509 | 546
Deferred income taxes | (64) | (77)
Minority shareholders’ equity | (2) | (4)
Net amount recognized | 443 | 465
Other Postretirement Benefits Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Prior service (credit) cost | (29) | (4)
Net actuarial loss | (86) | (85)
Gross amount recognized | (115) | (89)
Deferred income taxes | 4 | (2)
Minority shareholders’ equity | 0 | 0
Net amount recognized | $ (111) | $ (91)

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