Annual report pursuant to Section 13 and 15(d)

Postretirement Health Care and Life Insurance Benefits (Assumed Health Care Cost Trend Rates) (Details)

v3.20.1
Postretirement Health Care and Life Insurance Benefits (Assumed Health Care Cost Trend Rates) (Details)
12 Months Ended
Feb. 01, 2020
Rate
Feb. 02, 2019
Rate
Minimum [Member]    
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year 5.25% 5.38%
Maximum [Member]    
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year 8.63% 9.31%
Other Postretirement Benefits Plan [Member]    
Rates to which is the cost trend rate is assumed to decline (the ultimate trend rate) 4.50% 4.50%
Year that the rate reaches the ultimate trend rate 2027 2027