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Basic And Diluted Weighted Average Common Shares (Narrative) (Details) (Employee Stock Option [Member])
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 04, 2013
Jul. 29, 2012
Aug. 04, 2013
Jul. 29, 2012
Employee Stock Option [Member]
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Options to purchase common stock excluded from computation of Diluted Earnings per Share 1 2 1 2