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Pension, Savings and Other Postretirement Benefit Plans - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Postretirement benefits expense (income) | $ (1) | $ 1 | $ (1) | $ 5
Defined contribution plans, contribution expenses | 30 | $ 34 | 92 | 104
Pension Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Pension settlement charges | 68 |  | 72 |
Termination benefits charges | 4 |  | 4 |
Pension Plan | U.S. |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Pension settlement credit |  |  |  | $ 5
Pension Plan | Non-U.S. |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Contributions to pension plans | 8 |  | 21 |
Pension Plan | Non-U.S. | Minimum |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected contribution to funded pension plans in current year | 20 |  | 20 |
Pension Plan | Non-U.S. | Maximum |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected contribution to funded pension plans in current year | 30 |  | 30 |
Foreign Pension Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Termination benefits charges | $ 1 |  | $ 1 |

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