Associate Benefit Plans (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Sep. 01, 2012	Aug. 27, 2011
Associate Benefit Plans [Abstract]
Shares outstanding-beginning of year	1,377	1,697	2,394
Shares granted	360	308	364
Shares exercised	(504)	(538)	(1,060)
Shares cancelled/forfeited	(9)	(90)	(1)
Shares outstanding-end of year	1,224	1,377	1,697
Shares exercisable-end of year	385	505	584
Weighted average exercise price, shares outstanding at beginning of year	$ 49.79	$ 44.17	$ 38.76
Weighted average exercise price, shares granted	$ 69.52	$ 66.69	$ 54.67
Weighted average exercise price, shares exercised	$ 42.97	$ 41.65	$ 35.56
Weighted average exercise price, shares cancelled/forfeited	$ 62.43	$ 50.39	$ 14.26
Weighted average exercise price, shares outstanding at end of year	$ 58.30	$ 49.79	$ 44.17
Weighted average exercise price, shares exercisable at end of year	$ 48.78	$ 42.68	$ 39.46
Weighted average fair value of options granted	$ 15.33	$ 17.67	$ 14.48