Retirement Benefits - Schedule of Weighted Average Assumptions (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Defined Benefit Pension Plans | |||
| Weighted-average assumptions used to determine net periodic benefit costs: | |||
| Discount rate | 5.50% | 4.80% | 5.10% |
| Rate of compensation increase | 4.00% | 4.30% | 4.30% |
| Expected return on plan assets | 7.90% | 8.10% | 8.10% |
| Weighted-average assumptions used to determine benefit obligation as of December 31: | |||
| Discount rate | 5.50% | 5.50% | 4.80% |
| Rate of compensation increase | 4.00% | 4.00% | 4.30% |
| Retiree Health Benefit Plans | |||
| Weighted-average assumptions used to determine net periodic benefit costs: | |||
| Discount rate | 5.70% | 5.00% | 5.20% |
| Expected return on plan assets | 7.00% | 7.30% | 7.30% |
| Weighted-average assumptions used to determine benefit obligation as of December 31: | |||
| Discount rate | 5.50% | 5.70% | 5.00% |
| X | ||||||||||
- 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 Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. 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 net periodic benefit cost of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- References No definition available.
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