Joint Venture Agreement, Terms [Abstract]

No definition available.

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

- Definition

The period of time over which the joint venture entity will continue to supply a partner after the closing of either the put or call option.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsContinuedSupplyPeriodtoPartner
Namespace Prefix:	mu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of time which an entity can elect to receive financing of the purchase price of the partners share of the joint venture from the joint venture partner following the exercise of the put option.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsPartnerFinancingPeriod
Namespace Prefix:	mu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of time between the election of the put/call option and the closing date of the transaction.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsPeriodBetweenElectionDateAndTransactionClosingDate
Namespace Prefix:	mu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The allotment of product output a partner can receive during the first period following the closing of the put/call option based on the supply lookback period volumes.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsPeriodOnePartnerOutputAllotmentPercentage
Namespace Prefix:	mu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The allotment of product output a partner can receive during the first period following the closing of the put/call option.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsPeriodTwoPartnerOutputAllotmentPercentage
Namespace Prefix:	mu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The interim periods of during the continued supply period subsequent to the election of a put/call option. Percentage output varies during the subperiods.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsSupplyAllotmentSubperiodDuration
Namespace Prefix:	mu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The lookback period that determines the amount of supply a partner will receive following the election of a put/call option terminating the joint venture.

+ References

No definition available.

+ Details

Name:	mu_JointVentureAgreementTermsSupplyLookbackPeriod
Namespace Prefix:	mu_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(22))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(24))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_MinorityInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	dei_LegalEntityAxis=mu_ImFlashTechnologiesLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	mu_JointVentureElectionAxis=us-gaap_PutOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	mu_JointVentureElectionAxis=us-gaap_CallOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MajorCustomersAxis=mu_IntelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=mu_NonTradeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=mu_OtherConsolidatedEntitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Equity - NCI and Consolidated VIE Disclosures (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 30, 2017	Dec. 01, 2016	Aug. 31, 2017
Variable Interest Entity [Line Items]
Noncontrolling Interest Balance	$ 867		$ 849
Net sales	$ 6,803	$ 3,970
IM Flash Technologies, LLC
Joint Venture Agreement, Terms [Abstract]
Continued Supply Period to Intel	1 year
Supply Lookback Period	6 months
Intel Output Allotment, Subperiod Duration	6 months
IM Flash Technologies, LLC \| Minimum
Joint Venture Agreement, Terms [Abstract]
Intel Output Allotment, First Six Months Percentage	50.00%
Intel Output Allotment, Second Six Months Percentage	0.00%
IM Flash Technologies, LLC \| Minimum \| Intel Put Option
Joint Venture Agreement, Terms [Abstract]
Period Between Election Date And Transaction Closing Date	6 months
Period Intel would be required to finance IMFT purchase after put option election	1 year
IM Flash Technologies, LLC \| Minimum \| Micron Call Option
Joint Venture Agreement, Terms [Abstract]
Period Between Election Date And Transaction Closing Date	6 months
IM Flash Technologies, LLC \| Maximum
Joint Venture Agreement, Terms [Abstract]
Intel Output Allotment, First Six Months Percentage	100.00%
Intel Output Allotment, Second Six Months Percentage	100.00%
IM Flash Technologies, LLC \| Maximum \| Intel Put Option
Joint Venture Agreement, Terms [Abstract]
Period Between Election Date And Transaction Closing Date	2 years
Period Intel would be required to finance IMFT purchase after put option election	2 years
IM Flash Technologies, LLC \| Maximum \| Micron Call Option
Joint Venture Agreement, Terms [Abstract]
Period Between Election Date And Transaction Closing Date	1 year
IM Flash Technologies, LLC \| Intel \| Non-Trade
Variable Interest Entity [Line Items]
Net sales	$ 112	$ 110
Other Consolidated Entities
Variable Interest Entity [Line Items]
Noncontrolling Interest Balance	17		17
Variable Interest Entity, Primary Beneficiary \| IM Flash Technologies, LLC
Variable Interest Entity [Line Items]
Noncontrolling Interest Balance	$ 850		$ 832
Noncontrolling Interest Percentage (in hundredths)	49.00%		49.00%
Ownership interest in IMFT (in hundredths)	51.00%