Income Taxes (Components Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current
Federal	$ 267.6	$ 214.3	$ 195.4
State	58.0	46.7	47.5
Foreign	35.0	34.1	28.1
Income tax expense	360.6	295.1	271.0
Deferred
Federal	(5.0)	(11.4)	1.8
State	(1.1)	(1.7)	(0.5)
Foreign	(1.4)	0.8	1.3
Income tax expense	(7.5)	(12.3)	2.6
Total
Federal	262.6	202.9	197.2
State	56.9	45.0	47.0
Foreign	33.6	34.9	29.4
Total income tax expense	$ 353.1	$ 282.8	$ 273.6

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