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Stock-based Compensation (Assumptions Used In Monte Carlo Simulation) (Details) (TSR Performance Restricted Stock Units [Member])
3 Months Ended
Nov. 02, 2014
Oct. 27, 2013
TSR Performance Restricted Stock Units [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 0.97% 0.60%
Expected dividend yield 2.91% 2.98%
Expected volatility 16.20% 15.76%
Expected term, years 3 years 3 years