v2.4.1.9
Equity - NCI and Consolidated VIE Disclosures (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 04, 2014
Nov. 28, 2013
Aug. 28, 2014
Variable Interest Entity [Line Items]      
Noncontrolling interests in subsidiaries $ 815us-gaap_MinorityInterest   $ 802us-gaap_MinorityInterest
R and D expenses reduced by reimbursements from Intel (376)us-gaap_ResearchAndDevelopmentExpense (320)us-gaap_ResearchAndDevelopmentExpense  
Net sales 4,573us-gaap_SalesRevenueNet 4,042us-gaap_SalesRevenueNet  
Trade receivables 2,301us-gaap_AccountsReceivableNetCurrent   2,524us-gaap_AccountsReceivableNetCurrent
Noncontrolling Interest Items [Abstract]      
Distributions to noncontrolling interests from consolidated VIE's 6us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders 9us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders  
Cash received from noncontrolling interests 20us-gaap_ProceedsFromMinorityShareholders 49us-gaap_ProceedsFromMinorityShareholders  
Intel [Member] | Collaborative Arrangement Process Design and Process Development [Member]      
Variable Interest Entity [Line Items]      
R and D expenses reduced by reimbursements from Intel 54us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_TypeOfArrangementAxis
= mu_CollaborativeArrangementProcessDesignandProcessDevelopmentMember
29us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_TypeOfArrangementAxis
= mu_CollaborativeArrangementProcessDesignandProcessDevelopmentMember
 
IM Flash Technologies, LLC [Member] | Intel [Member] | NAND Flash [Member]      
Variable Interest Entity [Line Items]      
Net sales 108us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_ProductOrServiceAxis
= mu_NandFlashMember
101us-gaap_SalesRevenueNet
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_ProductOrServiceAxis
= mu_NandFlashMember
 
Trade receivables 66us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_ProductOrServiceAxis
= mu_NandFlashMember
  66us-gaap_AccountsReceivableNetCurrent
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_MajorCustomersAxis
= mu_IntelMember
/ us-gaap_ProductOrServiceAxis
= mu_NandFlashMember
MP Mask Technology Center, LLC [Member]      
Noncontrolling Interest Items [Abstract]      
Extension periods of a Joint Venture 5 years    
Notice Period Required to Terminate a Joint Venture 12 months    
Other Consolidated Entities [Member]      
Variable Interest Entity [Line Items]      
Noncontrolling interests in subsidiaries 15us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_OtherConsolidatedEntitiesMember
  16us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_OtherConsolidatedEntitiesMember
Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] | IM Flash Technologies, LLC [Member]      
Variable Interest Entity [Line Items]      
Noncontrolling interests in subsidiaries 707us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]   693us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]
Variable interest entity, ownership percentage by noncontrolling owners (in hundredths) 49.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]   49.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]
Ownership percentage after stock transactions during period (in hundredths) 51.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
   
Noncontrolling Interest Items [Abstract]      
Distributions to Micron from Consolidated VIE's 6mu_VariableInterestEntityDistributionsToParent
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
0mu_VariableInterestEntityDistributionsToParent
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
 
Distributions to noncontrolling interests from consolidated VIE's 6us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
 
Micron contributions to consolidated VIE's 21us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
51us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
 
Cash received from noncontrolling interests 20us-gaap_ProceedsFromMinorityShareholders
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
49us-gaap_ProceedsFromMinorityShareholders
/ dei_LegalEntityAxis
= mu_ImFlashTechnologiesLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
 
Variable Interest Entities Which We Have Determined That We Are the Primary Beneficiary [Member] | MP Mask Technology Center, LLC [Member]      
Variable Interest Entity [Line Items]      
Noncontrolling interests in subsidiaries $ 93us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_MpMaskTechnologyCenterLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]   $ 93us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= mu_MpMaskTechnologyCenterLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]
Variable interest entity, ownership percentage by noncontrolling owners (in hundredths) 50.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= mu_MpMaskTechnologyCenterLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]   50.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ dei_LegalEntityAxis
= mu_MpMaskTechnologyCenterLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
[1]
Ownership percentage after stock transactions during period (in hundredths) 50.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ dei_LegalEntityAxis
= mu_MpMaskTechnologyCenterLlcMember
/ us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
   
[1] (1) Entity is a variable interest entity.