Benefit Plans and Other Postretirement Benefits, Pension plans with an accumulated benefit obligation in excess of plan assets (Details) - Pension Plan - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| UNITED STATES | ||
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] | ||
| Accumulated benefit obligation | $ 22.0 | $ 22.1 |
| Fair value of plan assets | 8.7 | 8.6 |
| Foreign Plan | ||
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract] | ||
| Accumulated benefit obligation | 88.0 | 88.3 |
| Fair value of plan assets | $ 18.3 | $ 17.7 |