Employee Benefits, Plans With Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Pension benefits [Member] | ||
| Pension Plans Information with Benefit Obligations in Excess of Plan Assets [Abstract] | ||
| Projected benefit obligation | $ 428 | $ 473 |
| Accumulated benefit obligation | 371 | 424 |
| Fair value of plan assets | 2 | 56 |
| Other benefits [Member] | ||
| Pension Plans Information with Benefit Obligations in Excess of Plan Assets [Abstract] | ||
| Accumulated benefit obligation | 12 | 13 |
| Fair value of plan assets | $ 0 | $ 0 |