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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Statement of Comprehensive Income [Abstract] |  |  |
Foreign currency translation adjustments, tax | $ 3.6 | $ 1.0 | $ 2.2
Net actuarial gain (loss) arising during period, tax | 0.3 | 0.4 | (2.4)
Settlement effects arising during period, tax | 0.0 | 0.0 | 20.3
Amortization of actuarial (gain) loss, tax | (0.2) | (0.4) | (0.1)
Amortization of other, tax | 0.0 | (0.1) | 0.1
Net gain (loss) on equity affiliate accumulated other comprehensive income, tax | 0.0 | 0.0 | 0.0
Net (loss) gain on derivatives, tax | $ (0.9) | $ 0.0 | $ 0.2

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