Retirement and Postretirement Plans - Summary of Components of Net Periodic Benefit Cost (Credit) for Plans (Details) - Pension Benefit Plans [Member] - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
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Defined Benefit Plan Disclosure [Line Items] | ||||
Service cost | $ 1 | $ 1 | ||
Interest cost | $ 20 | $ 21 | 58 | 62 |
Expected return on plan assets | (25) | (28) | (75) | (84) |
Amortization of net gain | (1) | (2) | (4) | (6) |
Net periodic benefit credit | $ (6) | $ (9) | $ (20) | $ (27) |
X | ||||||||||
- 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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X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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X | ||||||||||
- 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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X | ||||||||||
- 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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X | ||||||||||
- 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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X | ||||||||||
- 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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X | ||||||||||
- Details
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