v2.4.1.9

Equity - Restrictions on Net Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 04, 2014	Aug. 28, 2014	Nov. 28, 2013	Aug. 29, 2013
Restrictions for Consolidated and Unconsolidated Subsidiaries [Abstract]
Cash and equivalents	$ 3,764us-gaap_CashAndCashEquivalentsAtCarryingValue	$ 4,150us-gaap_CashAndCashEquivalentsAtCarryingValue	$ 3,654us-gaap_CashAndCashEquivalentsAtCarryingValue	$ 2,880us-gaap_CashAndCashEquivalentsAtCarryingValue
MMJ Group [Member]
Restrictions for Consolidated and Unconsolidated Subsidiaries [Abstract]
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	3,170us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries / dei_LegalEntityAxis = mu_MMJGroupMember
Cash and equivalents	1,530us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = mu_MMJGroupMember
IM Flash Technologies, LLC [Member]
Restrictions for Consolidated and Unconsolidated Subsidiaries [Abstract]
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	$ 789us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries / dei_LegalEntityAxis = mu_ImFlashTechnologiesLlcMember

X

- Definition

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(e)(3)(ii))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph e

-Subparagraph 3

-Article 4

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585

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