Financing - Additional Information (Detail) (USD $)	12 Months Ended			9 Months Ended			3 Months Ended				1 Months Ended			12 Months Ended		12 Months Ended
	Aug. 25, 2012	Aug. 27, 2011	Sep. 13, 2011	May 05, 2012 3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]	Aug. 25, 2012 3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]	Aug. 27, 2011 3.700% Senior Notes due April 2022, effective interest rate of 3.85% [Member]	Nov. 15, 2010 4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]	Aug. 25, 2012 4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]	Aug. 27, 2011 4.000% Senior Notes due November 2020, effective interest rate of 4.43% [Member]	Nov. 15, 2010 4.750% Senior Notes due November 2010, effective interest rate of 4.17% [Member]	Aug. 25, 2012 Commercial paper, weighted average interest rate of 0.42% at August 25, 2012, and 0.35% at August 27, 2011 [Member] Month	Aug. 25, 2012 Peso denominated borrowings [Member]	Sep. 13, 2011 Revolving credit facility, which was scheduled to expire in July 2012 [Member]	Aug. 25, 2012 Letters of credit [Member]	Jun. 30, 2012 Letters of credit [Member]	Aug. 25, 2012 Capital leases [Member]
Line of Credit Facility [Line Items]
Remaining borrowing capacity under revolving credit facility	$ 996,600,000
Amount available under credit facility	1,000,000,000												800,000,000
Commercial paper borrowings, maturity period (in months)											12
Expiration of credit facility	September 2016	June 2013
Short-term borrowings	49,881,000	34,082,000									45,100,000	4,800,000
Interest rate on short-term borrowings											0.42%	4.57%
Letter of credit facility maximum borrowing capacity			1,250,000,000											200,000,000	100,000,000	175,000,000
Interest accrual on foreign currency loans the basis points																Interest accrues on Eurodollar loans at a defined Eurodollar rate, defined as LIBOR plus the applicable percentage, as defined in the revolving credit facility, depending upon the Company's senior, unsecured, (non-credit enhanced) long-term debt rating.
Line of credit facility covenant terms	The revolving credit facility agreement requires that the Company's consolidated interest coverage ratio as of the last day of each quarter shall be no less than 2.50:1. This ratio is defined as the ratio of (i) consolidated earnings before interest, taxes and rents to (ii) consolidated interest expense plus consolidated rents. The Company's consolidated interest coverage ratio as of August 25, 2012 was 4.58:1.
Letter of credit outstanding														98,700,000
Letter of credit facility expiration date														June 2013
Proceeds from issuance of debt	500,000,000	500,000,000		500,000,000			500,000,000
Stated interest rate percentage				3.70%	3.70%	3.70%		4.00%	4.00%
Payments of long term debt										199,300,000
Fair value of the Company's debt	4,055,000,000	3,633,000,000
Excess (shortfall) of fair value of debt over (from) carrying value	$ 286,600,000	$ 281,000,000