Fair Value Measurement (Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Feb. 12, 2012		Aug. 28, 2011		Feb. 13, 2011	Aug. 29, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 4,389		$ 4,009		$ 3,355	$ 3,214
Short-term investments	1,396		1,604
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	268		200
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	1,295		1,404
Money Market Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	268	[1]	200	[1]
Money Market Mutual Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0	[1]	0	[1]
U.S. Government And Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	11		73
Short-term investments	1,053		1,104
U.S. Government And Agency Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0	[2]	0	[3]
U.S. Government And Agency Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	1,064	[2]	1,177	[3]
Corporate Notes And Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0		0
Corporate Notes And Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	58		7
FDIC-Insured Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0		0
FDIC-Insured Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	167		209
Asset And Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0		0
Asset And Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	10		12
Forward Foreign Exchange Contracts [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	0	[4]	0	[4]
Fair value of liabilities measured on recurring basis	0	[4]	0	[4]
Forward Foreign Exchange Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets measured on recurring basis	1	[4]	1	[4]
Fair value of liabilities measured on recurring basis	$ (5)	[4]	$ (2)	[4]

[1] Included in cash and cash equivalents in the accompanying condensed consolidated balance sheets.

[2] $11 and $1,053 included in cash and cash equivalents and short-term investments, respectively, in the accompanying condensed consolidated balance sheets.

[3] $73 and $1,104 included in cash and cash equivalents and short-term investments, respectively, in the accompanying condensed consolidated balance sheets.

[4] The asset and the liability values are included in deferred income taxes and other current assets and other current liabilities, respectively, in the accompanying condensed consolidated balance sheets. See Note 1 for additional information on derivative instruments.