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Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Amortization of intangible assets $ 146.6 $ 101.8
Other Intangible Assets    
Finite-Lived Intangible Assets [Line Items]    
Amortization of intangible assets $ 145.4 $ 100.7