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Stock-Based Compensation (Schedule Of Option Grant Fair Value Assumptions) (Details) - $ / shares
6 Months Ended
Mar. 02, 2019
Mar. 03, 2018
Stock-Based Compensation [Abstract]    
Expected life (in years) 4 years 4 years
Risk-free interest rate 2.98% 1.87%
Expected volatility 23.13% 22.13%
Expected dividend yield 2.70% 2.30%
Weighted-average grant-date fair value $ 14.05 $ 12.25