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Share-Based Compensation (Schedule Of Stock Option Activity Under Plan) (Details)
 6 Months Ended 12 Months Ended
Aug. 03, 2019
$ / shares
shares
Feb. 02, 2019
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Stock option maximum term (years) 10 years  
Stock option vesting period (years) 4 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Options outstanding, Balance (shares) | shares 374,257  
Options outstanding, Forfeited (shares) | shares (862)  
Options outstanding, Exercised (shares) | shares (97,053)  
Options outstanding, Balance (shares) | shares 276,342 374,257
Options outstanding, Exercisable (shares) | shares 264,785,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Weighted average exercise price, Balance (dollars per share) | $ / shares $ 30,230  
Weighted average exercise price, Exercised (dollars per share) | $ / shares 30,210  
Weighted average exercise price, Forfeited (dollars per share) | $ / shares 39,390  
Weighted average exercise price, Balance (dollars per share) | $ / shares 30,210 $ 30,230
Weighted average exercise price, Exercisable (dollars per share) | $ / shares $ 29,980  
Weighted Average Remaining Contractual Term (in years) 4 years 6 months 5 years 1 month 6 days
Weighted Average Remaining Contractual Term, Exercisable 4 years 4 months 24 days