Retirement Plans and Other Benefits (Assumed Health Care Cost Trend Rates Related to Measurement of SERP Medical Plan Obligations) (Details)	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Medical care | Defined Benefit Obligations
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	6.50%	7.00%	7.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2025	2025	2021
Medical care | Net Periodic Benefit Costs
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	7.00%	7.00%	7.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2025	2021	2021
Dental care | Defined Benefit Obligations
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	5.00%	5.00%	5.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2019	2018	2017
Dental care | Net Periodic Benefit Costs
Health Care Cost Trend Rates Assumptions [Line Items]
Initial cost trend rate	5.00%	5.00%	5.00%
Ultimate cost trend rate	5.00%	5.00%	5.00%
Year that the ultimate cost trend rate is reached	2018	2017	2016