Commitments and Contingencies Rent Expenses for Operating Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Operating Leases Rent Expense Minimum Rentals Excluding Office Distribution And Manufacturing Facilities And Equipment	$ 198.7	$ 184.1	$ 172.2
Operating Leases, Rent Expense, Contingent Rentals	32.7	32.4	34.9
Operating Leases Rent Expenses Office Distribution And Manufacturing Facilities And Equipment	40.0	40.0	37.0
Operating Leases, Rent Expense, Net	271.4	256.5	244.1
Fees Paid To Department Store Operators	$ 118.9	$ 117.9	$ 109.4