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Employee Stock Plan (Deferred Compensation Arrangements) (Narrative) (Details)
12 Months Ended
Jan. 28, 2018
shares
years_old
Jan. 29, 2017
shares
Jan. 31, 2016
shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]      
Number of shares of common stock each deferred share entitled to 1    
Number of years after grant date of deferred shares 5 years    
Deferred Compensation, Share-based Payments [Member]      
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]      
Deferred shares issued 122,000 139,000 152,000
Age at which award becomes non-forfeitable | years_old 60    
Award requisite service period 5 years