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Nature of Operations and Basis of Presentation - Schedule of Components of Other Income, net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |
Other components of net periodic benefit cost | $ (5) | $ (5) | $ (17) | $ (17)
Net loss (gain) from investments | 3 | 7 | (8) | 7
Other income, net | $ (2) | $ 2 | $ (25) | $ (10)

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