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Fair Values of Financial Assets and Liabilities (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 08, 2012
Sep. 03, 2011
Derivatives, Fair Value [Line Items]    
Deferred compensation, Liabilities $ 503 [1],[2] $ 519 [1],[2]
Level 1 Fair Values Of Assets And Liabilities
    
Derivatives, Fair Value [Line Items]    
Deferred compensation, Liabilities $ 11 $ 43
[1] Financial assets are classified on our balance sheet within prepaid expenses and other current assets and other assets, with the exception of available-for-sale securities and short-term investments. Financial liabilities are classified on our balance sheet within accounts payable and other current liabilities and other liabilities. Unless specifically indicated, all financial assets and liabilities are categorized as Level 2 assets or liabilities.
[2] Based on the fair value of investments corresponding to employees’ investment elections. As of September 8, 2012 and September 3, 2011, $11 million and $43 million, respectively, are categorized as Level 1 liabilities. The remaining balances are categorized as Level 2 liabilities.