v2.4.1.9

Equity Method Investments - 2 (Details) (Tera Probe [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 05, 2015	Feb. 27, 2014	Mar. 05, 2015	Feb. 27, 2014
Tera Probe [Member]
Related Party Transaction [Line Items]
Related party purchases from Tera Probe	$ 22us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mu_TeraProbeMember	$ 31us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mu_TeraProbeMember	$ 47us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mu_TeraProbeMember	$ 64us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = mu_TeraProbeMember

X

- Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration