Summary of Significant Policies (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	May 06, 2012	May 08, 2011	May 06, 2012	May 08, 2011	Aug. 28, 2011
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			602
Charge to merchandise costs	$ 6	$ 49	$ 9	$ 55
Inventory LIFO reserve	96		96		87
Gain (loss) on foreign currency transaction	2	(5)	25	(16)
Forward Foreign Exchange Contracts
Summary Of Significant Accounting Policies [Line Items]
Notional Amount of Forward Foreign-Exchange Derivative	$ 226	$ 221	$ 226	$ 221
Mexico
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			32
U.S.
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			435
Canada
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			82
United Kingdom
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			22
Japan
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			13
Taiwan
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			8
Korea
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			7
Australia
Summary Of Significant Accounting Policies [Line Items]
Number of warehouses operated			3