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Commitments and Contingencies (Details) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) wasteSite | Dec. 31, 2024 USD ($)
Other Commitments [Line Items] |  |
Environmental loss contingency statement of financial position extensible enumeration not disclosed flag | estimated undiscounted liability | estimated undiscounted liability
Environmental Claims |  |
Other Commitments [Line Items] |  |
Number of hazardous waste sites | wasteSite | 20 |
Accrual for environmental loss contingencies | $ | $ 91 | $ 78
Dow Corning Corporation | Dow Corning Environmental Claims |  |
Other Commitments [Line Items] |  |
Indemnification of excess liability | 50.00% |

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