Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Lease, Cost [Abstract]
Operating lease cost	$ 389.7	$ 378.2	$ 1,158.5	$ 1,139.8
Variable lease cost	95.3	94.7	288.0	272.2
Total lease cost	$ 485.0	$ 472.9	$ 1,446.5	$ 1,412.0