Goodwill and Intangible Assets (Amortization Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 583.3	$ 597.2	$ 1,154.5	$ 1,198.2
Intangible asset disposal & impairment charges	2.2	102.0	2.2	102.0
Total intangible asset amortization expense (including disposal & impairment charges)	$ 585.5	$ 699.2	$ 1,156.7	$ 1,300.2