v2.4.1.9
Investments (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 04, 2014
Nov. 28, 2013
Aug. 28, 2014
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments $ 3,000us-gaap_AvailableForSaleSecurities   $ 2,935us-gaap_AvailableForSaleSecurities
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]      
Money market funds 866us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue    
Due in 1 year or less 1,057us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue    
Due in 1-2 years 562mu_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughTwoYearsFairValue    
Due in 2-4 years 467mu_AvailableForSaleSecuritiesDebtMaturitiesAfterTwoThroughFourYearsFairValue    
Due after 4 years 47mu_AvailableForSaleSecuritiesDebtMaturitiesAfterFourYearsFairValue    
Debt Securities, Fair Value 2,999us-gaap_AvailableForSaleSecuritiesDebtSecurities    
Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract]      
Proceeds from the sale of available-for-sale securities 233us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities 113us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities  
Money market funds [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 866us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MoneyMarketFundsMember
  1,281us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MoneyMarketFundsMember
Corporate bonds [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 799us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
  561us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
Certificates of deposit [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 581us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
  437us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CertificatesOfDepositMember
Government securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 440us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SovereignDebtMember
  420us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_SovereignDebtMember
Asset-backed securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 220us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
  128us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_AssetBackedSecuritiesMember
Commercial paper [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments 93us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialPaperMember
  107us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialPaperMember
Marketable equity securities [Member]      
Schedule of Available-for-sale Securities [Line Items]      
Fair value of available-for-sale investments $ 1us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember
  $ 1us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_EquitySecuritiesMember