Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 736.8	$ 643.0	$ 523.1
Unrealized loss from hedge accounting, net of tax	(11.3)	(5.9)	(0.1)
Reclassification of hedge accounting gain to net income, net of tax	1.7	3.9	0.3
Foreign currency translation, net of tax	22.4	(32.7)	43.7
Other comprehensive (loss) income, net of tax	12.8	(34.7)	43.9
Comprehensive income	$ 749.6	$ 608.3	$ 567.0