Defined Benefit Pension Plans and Other Postretirement Benefit Plans - Net Periodic Benefit Cost Assumptions (Details)	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.70%	3.95%	4.30%
Expected long-term rate of return on plan assets	5.65%	6.05%	6.35%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.67%	3.98%	4.04%