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Stock-Based Compensation (Assumptions Used In Monte Carlo Simulation) (Details) (TSR Performance Restricted Stock/Units [Member])	3 Months Ended		12 Months Ended
	Oct. 31, 2010	Nov. 01, 2009	Jul. 31, 2011 years	Aug. 01, 2010 years
TSR Performance Restricted Stock/Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.59%	1.27%
Expected dividend yield	3.00%	3.06%
Expected volatility	23.71%	24.83%
Expected term, years			3	3

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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