Pension Benefits - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2026 |
Sep. 30, 2025 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Dec. 31, 2025 |
|
| Retirement Benefits [Abstract] | |||||
| Curtailment loss | $ 4 | ||||
| Liability, other retirement benefits | $ 1 | $ 0 | |||
| Multiemployer plan, employer contribution, cost | $ 1 | $ 3 | |||
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of liability for retirement benefits, classified as other. No definition available.
|