v2.4.1.9
Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 04, 2014
Nov. 28, 2013
Aug. 28, 2014
Intangible Assets [Abstract]      
Gross Amount $ 815us-gaap_FiniteLivedIntangibleAssetsGross   $ 810us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization (365)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization   (342)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Amortization expense for intangible assets 30us-gaap_AmortizationOfIntangibleAssets 23us-gaap_AmortizationOfIntangibleAssets  
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]      
Annual amortization for 2015 115us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
Annual amortization for 2016 101us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
Annual amortization for 2017 90us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
Annual amortization for 2018 79us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
Annual amortization for 2019 31us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Product and process technology [Member]      
Intangible Assets [Abstract]      
Gross Amount 814us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
  809us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
Accumulated Amortization (364)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
  (341)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
Product and process technology intangible asset capitalized during period 12mu_FiniteLivedIntangibleAssetsCostIncurredToPurchaseOrCreate
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
6mu_FiniteLivedIntangibleAssetsCostIncurredToPurchaseOrCreate
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TechnologyBasedIntangibleAssetsMember
 
Product and process technology intangible asset capitalized during period, weighted-average useful lives (in years) 8 years 9 years  
Customer relationships [Member]      
Intangible Assets [Abstract]      
Gross Amount 1us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
  1us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
Accumulated Amortization $ (1)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
  $ (1)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember