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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
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Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
Other Postretirement Benefits Plan [Member] |  |  |
Discount rate | 3.17% | 3.14% | 3.55%

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Details
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