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Goodwill and Intangible Assets (Amortization Expense) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]        
Intangible asset amortization expense $ 591.2 $ 634.1 $ 1,194.5 $ 1,282.2
Intangible asset disposal & impairment charges 0.0 0.0 32.0 0.0
Total intangible asset amortization expense (including disposal & impairment charges) $ 591.2 $ 634.1 $ 1,226.5 $ 1,282.2