Associate Benefit Plans (Summary Of Stock Options Outstanding And Exercisable) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Aug. 27, 2011	Aug. 28, 2010	Aug. 29, 2009	Aug. 30, 2008
Number of Options Outstanding at August 27, 2011	1,697	2,394	2,759	2,644
Options Outstanding, Weighted Average Remaining Contractual Life, in years	4.3
Options Outstanding, Weighted Average Exercise Price	$ 44.17	$ 38.76	$ 33.65	$ 30.56
Options Outstanding, Intrinsic Value	$ 25,170
Number of Options Exercisable at August 27, 2011	584	1,174	1,632
Options Exercisable, Weighted Average Remaining Contractual Life, in years	2.9
Options Exercisable, Weighted Average Exercise Price	$ 39.46	$ 34.42	$ 27.92
Options Exercisable, Intrinsic Value	11,402
$14.50 - $28.30 [Member]
Range of Exercise Price, Minimum	$ 14.50
Range of Exercise Price, Maximum	$ 28.30
Number of Options Outstanding at August 27, 2011	95
Options Outstanding, Weighted Average Remaining Contractual Life, in years	2.0
Options Outstanding, Weighted Average Exercise Price	$ 23.08
Options Outstanding, Intrinsic Value	3,421
Number of Options Exercisable at August 27, 2011	95
Options Exercisable, Weighted Average Remaining Contractual Life, in years	2.0
Options Exercisable, Weighted Average Exercise Price	$ 23.08
Options Exercisable, Intrinsic Value	3,421
28.31 - 37.45 [Member]
Range of Exercise Price, Minimum	$ 28.31
Range of Exercise Price, Maximum	$ 37.45
Number of Options Outstanding at August 27, 2011	67
Options Outstanding, Weighted Average Remaining Contractual Life, in years	1.3
Options Outstanding, Weighted Average Exercise Price	$ 37.28
Options Outstanding, Intrinsic Value	1,462
Number of Options Exercisable at August 27, 2011	67
Options Exercisable, Weighted Average Remaining Contractual Life, in years	1.3
Options Exercisable, Weighted Average Exercise Price	$ 37.28
Options Exercisable, Intrinsic Value	1,462
37.46 - 42.78 [Member]
Range of Exercise Price, Minimum	$ 37.46
Range of Exercise Price, Maximum	$ 42.78
Number of Options Outstanding at August 27, 2011	476
Options Outstanding, Weighted Average Remaining Contractual Life, in years	3.6
Options Outstanding, Weighted Average Exercise Price	$ 39.27
Options Outstanding, Intrinsic Value	9,377
Number of Options Exercisable at August 27, 2011	227
Options Exercisable, Weighted Average Remaining Contractual Life, in years	3.0
Options Exercisable, Weighted Average Exercise Price	$ 40.58
Options Exercisable, Intrinsic Value	4,173
42.79 - 65.76 [Member]
Range of Exercise Price, Minimum	$ 42.79
Range of Exercise Price, Maximum	$ 65.76
Number of Options Outstanding at August 27, 2011	1,059
Options Outstanding, Weighted Average Remaining Contractual Life, in years	5.0
Options Outstanding, Weighted Average Exercise Price	$ 48.71
Options Outstanding, Intrinsic Value	10,910
Number of Options Exercisable at August 27, 2011	195
Options Exercisable, Weighted Average Remaining Contractual Life, in years	3.8
Options Exercisable, Weighted Average Exercise Price	$ 46.94
Options Exercisable, Intrinsic Value	$ 2,346