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Intangible Assets And Goodwill (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of purchased intangibles $ 55.5 $ 59.0 $ 171.0 $ 179.0