CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 175.6	$ 82.3	$ 514.1	$ 247.8
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(24.2)	29.4	(46.9)	(4.9)
Defined benefit pension and other postretirement plan adjustments, net of tax of $0.2, $(0.1), $0.4, and $(1.2), respectively	0.4	(0.2)	1.1	(4.0)
Net gain (loss) on derivatives, net of tax of $(0.4), $(0.2), $(0.4) and $(0.4), respectively	1.3	(0.9)	0.7	(1.0)
Other comprehensive (loss) income, net of tax	(22.5)	28.3	(45.1)	(9.9)
Comprehensive income	$ 153.1	$ 110.6	$ 469.0	$ 237.9