Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 171.7	$ 134.4
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(172.6)	58.5
Pension and postretirement liability adjustment	0.8	1.1
Total other comprehensive (loss) income	(171.8)	59.6
Comprehensive (loss) income	$ (0.1)	$ 194.0