Associate Benefit Plans (Summary Of Stock Options) (Details) (USD $) In Thousands, except Per Share data	12 Months Ended
Aug. 27, 2011	Aug. 28, 2010	Aug. 29, 2009
Associate Benefit Plans
Outstanding - beginning of year, Shares	2,394	2,759	2,644
Granted, Shares	364	515	497
Exercised, Shares	(1,060)	(879)	(364)
Cancelled/forfeited, Shares	(1)	(1)	(18)
Outstanding - end of year, Shares	1,697	2,394	2,759
Exercisable - end of year, Shares	584	1,174	1,632
Weighted average fair value of options granted	$ 14.48	$ 12.49	$ 10.05
Outstanding - beginning of year, Weighted Average Exercise Price	$ 38.76	$ 33.65	$ 30.56
Granted, Weighted Average Exercise Price	$ 54.67	$ 44.17	$ 38.07
Exercised, Weighted Average Exercise Price	$ 35.56	$ 25.95	$ 16.81
Cancelled/forfeited, Weighted Average Exercise Price	$ 14.26	$ 14.45	$ 42.59
Outstanding - end of year, Weighted Average Exercise Price	$ 44.17	$ 38.76	$ 33.65
Exercisable - end of year, Weighted Average Exercise Price	$ 39.46	$ 34.42	$ 27.92

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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The weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.

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Net number of share options (or share units) granted during the period.

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The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Number of share options (or share units) exercised during the current period.

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