CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 281.8	$ 239.9	$ 716.2	$ 674.2
Foreign currency translation adjustments	(0.7)	(2.7)	(5.9)	2.3
Total comprehensive income	$ 281.1	$ 237.2	$ 710.3	$ 676.5