Benefit Plans (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Pension Benefits | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | ||
| Service cost | $ 1 | $ 1 |
| Interest cost | 11 | 24 |
| Expected return on plan assets | (15) | (29) |
| Amortization of unrecognized net loss | 2 | 7 |
| Net periodic (benefit) cost | (1) | 3 |
| Other Postretirement Benefits | ||
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] | ||
| Service cost | ||
| Interest cost | 1 | 1 |
| Expected return on plan assets | (1) | (1) |
| Amortization of unrecognized net loss | ||
| Net periodic (benefit) cost | $ 0 | $ 0 |
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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