Pension and Other Postretirement Benefits (Additional Information) (Details) $ in Millions |
3 Months Ended |
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Mar. 31, 2026
USD ($)
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| Pension Benefits | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Employer contributions | $ 0 |
| Other Pension Plan | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Benefits paid | 4 |
| Other Benefits | |
| Defined Benefit Plan Disclosure [Line Items] | |
| Benefits paid | $ 14 |
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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