Leases - Total Lease Costs For Operating Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2021	Feb. 01, 2020
Leases [Abstract]
Operating lease cost	$ 436.3	$ 460.3
Short-term lease cost	16.3	19.4
Variable lease cost	110.3	107.1
Sublease income	(1.8)	(2.0)
Total lease cost	$ 561.1	$ 584.8