Income Taxes (Schedule Of Provision For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Current, U.S. federal tax	$ 34.5	$ 8.6	$ 28.5
Current, state and local tax	3.4	1.6	2.1
Current, Non-U.S. tax	34.2	12.4	29.0
Total current	72.1	22.6	59.6
Deferred, U.S. federal tax	12.2	14.9	(28.8)
Deferred, U.S. state and local tax	(2.0)	(0.6)	2.2
Deferred, Non-U.S. tax	0.6	1.7	(1.7)
Total deferred	10.8	16.0	(28.3)
Total provision for income taxes	82.9	38.6	31.3
Excess tax benefits from share-based compensation	$ 5.4	$ 0.4	$ 3.6