Other Operating (Income) Expense, Net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended	3 Months Ended
Feb. 27, 2014	Feb. 28, 2013	Feb. 27, 2014	Feb. 28, 2013	Nov. 28, 2013 Rambus Settlement [Member]
Component Of Operating Other Income And Expense Net [Line Items]
Rambus settlement	$ 0	$ 0	$ 233	$ 0	$ 233
(Gain) loss on disposition of property, plant and equipment	1	(10)	9	(15)
Other	0	2	(4)	(1)
Other operating (income) expense, net	$ 1	$ (8)	$ 238	$ (16)

Name:	mu_ComponentOfOperatingOtherIncomeAndExpenseNetLineItems
Namespace Prefix:	mu_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The net of other operating income and other operating expense, not previously categorized, from items that are associated with the entity's normal revenue producing operation.

+ References

No definition available.

+ Details

Name:	mu_OtherOtherOperatingIncomeExpenseNet
Namespace Prefix:	mu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

Name:	us-gaap_GainLossRelatedToLitigationSettlement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherOperatingIncomeExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration