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Goodwill and Intangible Assets (Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years) (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]  
Remaining 2019 $ 191.9
2020 137.6
2021 117.6
2022 101.9
Thereafter 298.7
Finite-Lived Intangible Asset, Expected Amortization, Year One $ 189.0