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Income Taxes - Narrative (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Income Tax Examination [Line Items] |  |  |
Tax benefit on pretax pension plan settlement expense |  |  | $ 101.9
Pension settlement (income) expense | $ 0.0 | $ (0.9) | 417.3
Tax benefit on release of stranded tax effects related to pension plan settlement expense |  |  | 65.8
Total taxes paid | 187.7 | 189.5 | 175.4
Undistributed earnings of foreign subsidiaries, including not permanently and permanently reinvested | 695.0 |  |
Undistributed foreign earnings | 3.5 | $ 5.1 |
Undistributed earnings of foreign subsidiaries, not permanently reinvested | 93.5 |  |
Undistributed earnings of foreign subsidiaries, permanently reinvested | $ 601.5 |  |
Percentage of federal income tax liability offset by dividend received deduction | 1 |  |
Unrecognized tax benefits that would affect the effective tax rate, if recognized | $ 4.3 |  |
Pension Benefits |  |  |
Income Tax Examination [Line Items] |  |  |
Pension settlement non-cash taxes |  |  | 167.7
Pension settlement (income) expense |  |  | $ 417.3

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