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Income Taxes (Reconciliation Of Statutory To Effective Tax Rate) (Details)
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Income Tax Disclosure [Abstract]      
Statutory rate 35.00% 35.00% 35.00%
Goodwill impairment 10.10% 0.00% 0.00%
State and local income taxes, net of federal income taxes 5.10% 4.10% 3.80%
Non-deductible acquisition-related items 0.60% 0.40% 0.90%
Federal credits (0.60%) (0.60%) (0.20%)
Other, net (2.00%) (0.30%) (0.30%)
Effective tax rate 48.20% 38.60% 39.20%