Annual report pursuant to Section 13 and 15(d)

Postretirement Health Care and Life Insurance Benefits (Weighted Average Assumptions Used To Determine Net Periodic Costs For Postretirement Plans) (Details)

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Postretirement Health Care and Life Insurance Benefits (Weighted Average Assumptions Used To Determine Net Periodic Costs For Postretirement Plans) (Details)
12 Months Ended
Jan. 30, 2021
Feb. 01, 2020
Feb. 02, 2019
Other Postretirement Benefits Plan [Member]      
Discount rate 2.30% 3.57% 3.28%