Derivative Instruments and Hedging Activities (Notional Value and Change in Fair Value of Net Investment Hedges) (Details) - Cross currency swap contracts - Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss), Before-Tax Amount	$ (49.3)	$ 3.4	$ (59.3)	$ 8.1
Gain (Loss) Recognized in Other Comprehensive Income (Loss), Income Tax Expense (Benefit)	(12.7)	0.8	(15.3)	2.0
Gain (Loss) Recognized in Other Comprehensive Income (Loss), After-Tax Amount	(36.6)	$ 2.6	(44.0)	$ 6.1
Net Investment Hedging
Derivative [Line Items]
Notional amount	$ 600.0		$ 600.0		$ 600.0