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Income Taxes (Schedule Of Income Before Taxes) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
U.S. operations $ 64.0 $ 296.4 $ 270.1
Non-U.S. operations 106.7 115.0 97.4
Income before income taxes $ 170.7 $ 411.4 $ 367.5