Benefit Plans - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Defined Benefit Plan Disclosure [Line Items] | ||||||
| Remeasurement (gains) losses | $ (28) | $ (108) | $ (155) | $ (30) | ||
| Discretionary contribution to qualified pension plan | 35 | |||||
| Pension benefits | ||||||
| Defined Benefit Plan Disclosure [Line Items] | ||||||
| Remeasurement (gains) losses | $ (22) | $ (107) | $ (148) | $ (30) | ||
| Discount rate (as a percent) | 6.55% | 6.55% | 5.73% | 5.52% | ||
| X | ||||||||||
- Definition Amount of gain (loss), recognized immediately as component of net periodic benefit (cost) credit, for change in value of benefit obligation or plan assets from experience different from that assumed, change in actuarial assumption, or consequence of temporarily deviating from substantive plan. Includes, but is not limited to, amount in excess of 10 percent of greater of fair value of plan assets or benefit obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. 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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- Details
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