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Equity, Accumulated Other Comprehensive Income (Loss) (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) contract | Dec. 31, 2023 USD ($) contract | Dec. 31, 2022 USD ($)
Equity |  |  |
Balance at beginning of period | $ 8,346.5 |  |
Balance at end of period | $ 9,792.0 | $ 8,346.5 |
Cash Flow Hedging |  |  |
Equity |  |  |
Number of forward contracts | contract | 0 | 0 |
Accumulated Other Comprehensive Loss |  |  |
Equity |  |  |
Balance at beginning of period | $ (533.6) | $ (535.0) | $ (286.5)
Other comprehensive income (loss) before reclassification, net of tax | (186.2) | (1.7) | (261.7)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax | 3.5 | 3.1 | 13.2
Balance at end of period | (716.3) | (533.6) | (535.0)
Foreign Currency Translation Adjustment |  |  |
Equity |  |  |
Balance at beginning of period | (412.7) | (413.0) | (152.8)
Other comprehensive income (loss) before reclassification, net of tax | (199.3) | 0.3 | (260.2)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax | 0.0 | 0.0 | 0.0
Balance at end of period | (612.0) | (412.7) | (413.0)
Foreign currency translation adjustments, tax | 0.0 | 0.0 | 0.0
Unrealized Gain (Loss) on Hedging Activities |  |  |
Equity |  |  |
Balance at beginning of period | 0.0 | 0.0 | 0.1
Other comprehensive income (loss) before reclassification, net of tax | 0.0 | 0.0 | (0.1)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax | 0.0 | 0.0 | 0.0
Balance at end of period | 0.0 | 0.0 | 0.0
Unrealized (gain) loss on hedging activities, tax | 0.0 | 0.0 | 0.0
Defined Benefit Plan Liability Adjustment |  |  |
Equity |  |  |
Balance at beginning of period | (120.9) | (122.0) | (133.8)
Other comprehensive income (loss) before reclassification, net of tax | 13.1 | (2.0) | (1.4)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax | 3.5 | 3.1 | 13.2
Balance at end of period | (104.3) | (120.9) | (122.0)
Pension and postretirement benefit plan adjustment, tax | (5.2) | 1.1 | (0.4)
Amounts reclassified from Accumulated Other Comprehensive Income (Loss), tax | $ (1.1) | $ (1.0) | (4.3)
Cash Flow Hedges [Member] |  |  |
Equity |  |  |
Number of forward contracts | contract | 0 | 0 |
Net Investment Hedges [Member] |  |  |
Equity |  |  |
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax | $ 0.0 | $ 0.0 | $ 0.0
Number of forward contracts | contract | 0 | 0 |

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