CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 204.4	$ 220.7
Other comprehensive income, net of tax:
Foreign exchange translation adjustments	(2.2)	(0.6)
Defined benefit plan adjustments gain (loss)	1.9	(0.7)
Income (loss) from derivative agreements	15.3	24.3
Other comprehensive income (loss)	15.0	23.0
Comprehensive income	$ 219.4	$ 243.7