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Leases - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 02, 2012
Aug. 28, 2011
Aug. 29, 2010
Leases Disclosure [Line Items]      
Aggregate rental expense $ 220 $ 208 $ 187
Gross assets recorded under leases 187 170  
Accumulated amortization related to leased assets 19 13  
Future minimum payments, net of sub-lease income 177    
Asset retirement obligations associated with these leases $ 44 $ 31