v2.4.1.9

Debt - Extinguishment of Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 04, 2014		Nov. 28, 2013
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	$ (277)mu_DebtInstrumentIncreaseDecreaseNetPrincipal
Debt Instrument, Increase (Decrease), Net	(518)us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet
Repayments to Settle Long-term Debt Obligations, Gross	(654)mu_RepaymentstoSettleLongtermDebtObligationsGross
Debt Instrument, Decrease in Equity	(106)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent
(Loss) gain on restructure of debt	(30)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet		(75)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet
Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Volume-weighted-average price of our common stock period of consecutive trading days (in days)	20mu_DerivativeTermofContractConsecutiveTradingDays / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember
Interest and debt expense incurred through restructure of debt			43us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember
Exchanged [Member]
Extinguishment of Debt [Line Items]
Interest and debt expense incurred through restructure of debt			49us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ExchangedMember
Face value of debt extinguished			440us-gaap_ExtinguishmentOfDebtAmount / mu_DebtRestructuringTypeAxis = mu_ExchangedMember
2027 convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Outstanding principal			95us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2027Member / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember
2031A convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Outstanding principal			112us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031AMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember
Convertible Notes Payable [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(120)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Increase (Decrease), Net	(368)us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(407)mu_RepaymentstoSettleLongtermDebtObligationsGross / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	(14)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Convertible Notes Payable [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(36)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Extinguishment of debt carrying amount	(30)mu_ExtinguishmentOfDebtCarryingAmount / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(125)mu_RepaymentstoSettleLongtermDebtObligationsGross / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	(92)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Convertible Notes Payable [Member] | 2031B convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(114)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031BMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Increase (Decrease), Net	(362)us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031BMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(389)mu_RepaymentstoSettleLongtermDebtObligationsGross / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031BMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	0mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031BMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Convertible Notes Payable [Member] | 2032C convertible senior notes [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(5)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032CMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Extinguishment of debt carrying amount	(4)mu_ExtinguishmentOfDebtCarryingAmount / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032CMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(18)mu_RepaymentstoSettleLongtermDebtObligationsGross / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032CMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	(13)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032CMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Convertible Notes Payable [Member] | 2032D convertible senior notes [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(31)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032DMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Extinguishment of debt carrying amount	(26)mu_ExtinguishmentOfDebtCarryingAmount / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032DMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(107)mu_RepaymentstoSettleLongtermDebtObligationsGross / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032DMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	(79)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032DMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Convertible Notes Payable [Member] | 2033E convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(6)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033EMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Increase (Decrease), Net	(6)us-gaap_DebtInstrumentIncreaseDecreaseForPeriodNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033EMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Repayments to Settle Long-term Debt Obligations, Gross	(18)mu_RepaymentstoSettleLongtermDebtObligationsGross / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033EMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Debt Instrument, Decrease in Equity	(14)mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033EMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember
Notes Payable, Other Payables [Member] | Prepayment [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Increase (Decrease), Net Principal	(121)mu_DebtInstrumentIncreaseDecreaseNetPrincipal / mu_DebtRestructuringTypeAxis = mu_PrepaymentMember / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Extinguishment of debt carrying amount	(120)mu_ExtinguishmentOfDebtCarryingAmount / mu_DebtRestructuringTypeAxis = mu_PrepaymentMember / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Repayments to Settle Long-term Debt Obligations, Gross	(122)mu_RepaymentstoSettleLongtermDebtObligationsGross / mu_DebtRestructuringTypeAxis = mu_PrepaymentMember / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Debt Instrument, Decrease in Equity	0mu_DebtInstrumentIncreaseDecreaseNetEquityComponent / mu_DebtRestructuringTypeAxis = mu_PrepaymentMember / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember
Other Non-Operating Income Expense Net [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(30)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember	[1]
Other Non-Operating Income Expense Net [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Interest and debt expense incurred through restructure of debt			37us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember
Other Non-Operating Income Expense Net [Member] | Exchanged [Member]
Extinguishment of Debt [Line Items]
Interest and debt expense incurred through restructure of debt			38us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ExchangedMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(22)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(3)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | 2031B convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(24)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2031BMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | 2032C convertible senior notes [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(1)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032CMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | 2032D convertible senior notes [Member] | Repurchase [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(2)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2032DMember / mu_DebtRestructuringTypeAxis = mu_RepurchaseMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Convertible Notes Payable [Member] | 2033E convertible senior notes [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	2mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033EMember / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleNotesPayableMember	[1]
Other Non-Operating Income Expense Net [Member] | Notes Payable, Other Payables [Member] | Prepayment [Member]
Extinguishment of Debt [Line Items]
(Loss) gain on restructure of debt	(5)mu_GainsLossesOnExtinguishmentOfDebtAndDerivativeGainLossOnDerivativeNet / mu_DebtRestructuringTypeAxis = mu_PrepaymentMember / us-gaap_IncomeStatementLocationAxis = mu_OtherNonOperatingIncomeExpenseNetMember / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember	[1]
Interest Expense [Member] | Conversion And Settlement [Member]
Extinguishment of Debt [Line Items]
Interest and debt expense incurred through restructure of debt			6us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ConversionAndSettlementMember / us-gaap_IncomeStatementLocationAxis = us-gaap_InterestExpenseMember
Interest Expense [Member] | Exchanged [Member]
Extinguishment of Debt [Line Items]
Interest and debt expense incurred through restructure of debt			$ 11us-gaap_InterestAndDebtExpense / mu_DebtRestructuringTypeAxis = mu_ExchangedMember / us-gaap_IncomeStatementLocationAxis = us-gaap_InterestExpenseMember
[1] Included in other non-operating expense.

X

- Definition

Net increase or decrease in the carrying amount of the equity component debt instrument for the period.

+ References

No definition available.

+ Details

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

X

- Definition

Net increase or decrease in the principal amount of the debt instrument for the period.

+ References

No definition available.

+ Details

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

X

- Definition

Number of consecutive trading days of volume-weighted-average price of our common stock for derivative debt liability settlement valuations.

+ References

No definition available.

+ Details

Name:	mu_DerivativeTermofContractConsecutiveTradingDays
Namespace Prefix:	mu_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount of debt extinguished.

+ References

No definition available.

+ Details

Name:	mu_ExtinguishmentOfDebtCarryingAmount
Namespace Prefix:	mu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Total loss on extinguishment of debt for both the difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity and the amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

No definition available.

+ Details

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Namespace Prefix:	mu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Gross cash outflow for repayment of debt obligations, those having an original maturity of one year or more, including a) principle amount b) fair value of equity component of convertible debt c) gain/losses on repayment d) make-whole interest e) other conversion features or f) any combination of the aforementioned components.

+ References

No definition available.

+ Details

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

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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

X

- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

+ 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.(f))

-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 f

-Article 4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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X

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Interest and debt related expenses associated with nonoperating financing activities of the entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

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- Details

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X

- Details

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X

- Details

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Namespace Prefix:
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X

- Details

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- Details

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- Details

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- Details

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X

- Details

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