Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013		Aug. 25, 2012		Aug. 27, 2011
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,016,480		$ 930,373		$ 848,974
Other comprehensive income (loss):
Pension liability adjustments, net of taxes	43,106	[1]	(17,262)	[1]	(17,346)	[1]
Foreign currency translation adjustments	(12,216)		(13,866)		8,347
Unrealized loss on marketable securities, net of taxes	(376)	[2]	(128)	[2]	(171)	[2]
Net derivative activity, net of taxes	711	[3]	(1,066)	[3]	(4,053)	[3]
Total other comprehensive income (loss)	31,225		(32,322)		(13,223)
Comprehensive income	$ 1,047,705		$ 898,051		$ 835,751

[1] Pension liability adjustments are presented net of taxes of $27,972 in 2013, $29,744 in 2012, and $3,998 in 2011

[2] Unrealized losses on marketable securities are presented net of taxes of $202 in 2013, $69 in 2012 and $91 in 2011

[3] Net derivative activities are presented net of taxes of $440 in 2013, $4,800 in 2012, and $0 in 2011