Investments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	May 30, 2013	May 31, 2012	Mar. 01, 2012	May 30, 2013	May 31, 2012	Aug. 30, 2012
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 2,563			$ 2,563		$ 2,693
Gross Unrealized Gains	1			1		1
Gross Unrealized Losses	(1)			(1)		0
Fair Value	2,563			2,563		2,694
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis [Abstract]
Money market funds not due at a single maturity date	2,018			2,018
Due in 1 year or less	198			198
Due in 1-2 years	140			140
Due in 2-4 years	181			181
Due after 4 years	16			16
Debt Maturities, Amortized Cost Basis	2,553			2,553
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Money market funds not due at a single maturity date	2,018			2,018
Due in 1 year or less	198			198
Due in 1-2 years	141			141
Due in 2-4 years	181			181
Due after 4 years	16			16
Debt Securities, Fair Value	2,554			2,554
Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract]
Net unrealized holding gains (losses) reclassified out of accumulated other comprehensive income			34
Proceeds from the sale of available-for-sale securities	346	18		481	59
Gross realized gains from sale of available-for-sale securities			34
Money market funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,018			2,018		2,159
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	0			0		0
Fair Value	2,018			2,018		2,159
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	255			255		233
Gross Unrealized Gains	1			1		1
Gross Unrealized Losses	0			0		0
Fair Value	256			256		234
Government securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	96			96		144
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	0			0		0
Fair Value	96			96		144
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	79			79		39
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	0			0		0
Fair Value	79			79		39
Asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	72			72		77
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	0			0		0
Fair Value	72			72		77
Certificates of deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33			33		31
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	0			0		0
Fair Value	33			33		31
Marketable equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	10			10		10
Gross Unrealized Gains	0			0		0
Gross Unrealized Losses	(1)			(1)		0
Fair Value	$ 9			$ 9		$ 10