Employee Benefit Plans - Assumptions Used to Calculate Net Periodic Benefit Cost for Domestic Defined Benefit Pension and Postretirement Benefit Plans (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Pre-65 | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Health care cost trend rate: | 7.00% | 7.00% | 7.00% |
| Ultimate cost trend rate: | 4.50% | 4.50% | 4.50% |
| Post-65 | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Health care cost trend rate: | 7.00% | 6.80% | 6.80% |
| Ultimate cost trend rate: | 4.50% | 4.50% | 4.50% |
| Defined benefit pension plans | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 2.50% | 2.20% | 3.00% |
| Long-term rate of return on plan assets | 5.00% | 5.00% | 5.50% |
| Postretirement benefit plans | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 2.50% | 2.20% | 3.00% |
| Annual increase in Medicare Part B premium | 6.00% | 6.00% | 6.00% |