CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Feb. 04, 2018	Jan. 29, 2017	Jan. 31, 2016
Statement of Stockholders' Equity [Abstract]
Net unrealized and realized (loss) gain related to effective cash flow hedges, tax expense (benefit)	$ 0.1	$ 1.2	$ (8.4)
Net (loss) gain on net investment hedges, tax (benefit) expense	$ (28.7)	$ 8.6	$ 0.0
Acquisition of treasury shares during period, number of shares repurchased	2,300,657	3,313,810	1,454,368