Retirement Plans (Weighted Average Assumptions Used To Determine Projected Benefit Obligations For The Pension Plan) (Details)	Jan. 28, 2017	Jan. 30, 2016
Supplemental Employee Retirement Plan
Discount rate	4.07%	4.23%
Pension Plan [Member]
Discount rate	4.00%	4.17%
Rate of compensation increases	4.10%	4.10%

Expected rate of compensation increases (for pay-related plans).

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)(2)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant