Schedule of U.S. Federal, State and Foreign Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
U.S. federal	$ 114.2	$ 117.2	$ 103.4
State, Current	32.1	24.9	23.4
Foreign, Current	15.9	10.1	13.0
Current income tax expense (benefit)	162.2	152.2	139.8
U.S. federal, Deferred	22.9	3.6	5.4
State, Deferred	4.2	(0.5)	4.6
Foreign, Deferred	(1.4)	2.5	1.1
Deferred income tax expense (benefit)	25.7	5.6	11.1
Recorded tax expense	$ 187.9	$ 157.8	$ 150.9