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Other Financial Data - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 101 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025
Other Financial Data [Abstract] |  |  |  |  |
Pension and other postretirement | $ (21) | $ (14) | $ (65) | $ (35) |
Extinguishment of debt | 0 | (1) | 0 | (7) |
Gain from sales of businesses | 1 | 76 | 1 | 333 |
Equity earnings | 4 | 2 | 5 | 5 |
Foreign currency remeasurement | 11 | (30) | (43) | (21) |
Financial instruments and other | (8) | 2 | 135 | 71 |
Total | $ (13) | 35 | 33 | 346 |
Deferred consideration on divestiture |  | $ 2 | $ 108 | $ 84 | $ 192

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