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Employee Benefit Plans (Amounts Recognized in AOCI and Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Changes recognized in other comprehensive income (loss): |  |  |
Reclassification of pension and post-retirement benefit losses into earnings | $ (5.4) | $ (7.9) | $ (5.9)
Estimated prior service (cost) credits | (0.1) |  |
Pension Benefits [Member] |  |  |
Amounts recognized in other comprehensive income (loss): |  |  |
Prior service costs | (0.4) | (0.5) |
Actuarial loss | (57.7) | (83.1) |
Subtotal | (58.1) | (83.6) |
Deferred taxes | 15.8 | 18.6 |
Net amount recognized | (42.3) | (65.0) |
Changes recognized in other comprehensive income (loss): |  |  |
Current year actuarial loss | (19.4) | (12.2) |
Effect of exchange rates | (0.9) | 0.0 |
Amortization of prior service (costs) credits | (0.1) | (0.2) |
Reclassification of pension and post-retirement benefit losses into earnings | (5.1) | (8.5) |
Total recognized in other comprehensive income | (25.5) | (20.9) |
Total recognized in net periodic benefit cost and other comprehensive income (loss) | $ (19.5) | $ (9.6) |

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