Employee-Separation Programs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 01, 2020	Feb. 02, 2020	Aug. 02, 2020
Voluntary Employee-Separation Programs
Employee Separation Programs
Total voluntary employee-separation programs' expenses			$ 8.7
Voluntary Employee-Separation Programs | Health Care and Life Insurance
Employee Separation Programs
Curtailment expense		$ (3.3)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Curtailment Gain (Loss), Statement of Income or Comprehensive Income [Extensible List]		Selling, General and Administrative Expense
Additional Employee-Separation Programs | Forecasted
Employee Separation Programs
Total employee separation programs' expenses, pretax	$ 10.0