v2.4.1.9

Derivative Instruments - Fair Values (Details) In Millions, unless otherwise specified | 6 Months Ended |  |  |  |  |  |  |  |  |  | 3 Months Ended |  |  | 6 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 Months Ended |  |  |  |  |  |  |
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Mar. 05, 2015 USD ($) | Feb. 27, 2014 USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Yen USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Singapore dollar USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Singapore dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] New Taiwan dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Euro USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Euro USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Shekel USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Shekel USD ($) | Dec. 04, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Reorganization obligation [Member] USD ($) | Nov. 28, 2014 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Reorganization obligation [Member] Yen JPY (¥) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Forward Contracts [Member] Less Than One Year From Balance Sheet Date [Member] Reorganization obligation [Member] Yen JPY (¥) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Convertible notes settlement obligations [Member] | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Convertible notes settlement obligations [Member] | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Yen USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Singapore dollar USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Singapore dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] New Taiwan dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Euro USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Euro USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Shekel USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Shekel USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Current Debt [Member] Convertible notes settlement obligations [Member] USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Total Current Liabilities [Member] USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Yen USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Singapore dollar USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Singapore dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] New Taiwan dollar USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Euro USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Euro USD ($) | Mar. 05, 2015 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Shekel USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Forward Contracts [Member] Shekel USD ($) | Aug. 28, 2014 Not Designated as Hedging Instrument [Member] Other noncurrent liabilities [Member] Convertible notes settlement obligations [Member] USD ($) | Mar. 05, 2015 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Contracts [Member] USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Contracts [Member] USD ($) | Mar. 05, 2015 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Forward Contracts [Member] Euro USD ($) | Mar. 05, 2015 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] USD ($) | Mar. 05, 2015 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Yen USD ($) | Aug. 28, 2014 Designated as Hedging Instrument [Member] Cash Flow Hedging [Member] Accounts Payable and Accrued Expenses [Member] Forward Contracts [Member] Euro USD ($)
Notional Disclosures [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount Outstanding |  |  | $ 622invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 1,191invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 106invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 554invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 295invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 330invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 84invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_TWD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 78invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 245invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 59invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] | $ 62invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] |  | ¥ 20,000invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DebtInstrumentAxis = mu_ReorganizationobligationMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | ¥ 10,000invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DebtInstrumentAxis = mu_ReorganizationobligationMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / mu_HedgingInstrumentDurationPeriodtoMaturityAxis = mu_LessThanOneYearFromBalanceSheetDateMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 32invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | $ 118invest_DerivativeNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | $ 32invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | $ 94invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | $ 24invest_DerivativeNotionalAmount / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = mu_ConvertiblenotessettlementobligationsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [1] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments for Derivative and Hedge Investing Activities | 88mu_PaymentsForDerivativeAndHedgeInvestingActivities | 24mu_PaymentsForDerivativeAndHedgeInvestingActivities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33mu_PaymentsForDerivativeAndHedgeInvestingActivities / us-gaap_DebtInstrumentAxis = mu_ReorganizationobligationMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Fair Value, Net [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value of Liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (23)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (19)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (12)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (2)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_TWD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (1)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (1)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (1)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (1)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (389)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_ShortTermDebtMember / us-gaap_DerivativeInstrumentRiskAxis = mu_ConvertiblenotessettlementobligationsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (403)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = mu_TotalCurrentLiabilitiesMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [2] | $ (6)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ (6)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_SGD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_TWD / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_CurrencyAxis = currency_ILS / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_OtherNoncurrentLiabilitiesMember / us-gaap_DerivativeInstrumentRiskAxis = mu_ConvertiblenotessettlementobligationsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember | [3] |  |  |  |  |  | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | [4] | $ (2)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | [4] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | [4] | $ (2)us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_JPY / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | [4] | $ 0us-gaap_DerivativeFairValueOfDerivativeLiability / us-gaap_BalanceSheetLocationAxis = us-gaap_AccountsPayableMember / us-gaap_CurrencyAxis = currency_EUR / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForwardContractsMember / us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis = us-gaap_CashFlowHedgingMember / us-gaap_HedgingDesignationAxis = us-gaap_DesignatedAsHedgingInstrumentMember | [4]
Foreign Currency Cash Flow Hedges [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General maturity of non-designated currency forward contracts (in days) |  |  | 35 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General maturity of hedge contracts (in days or months) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible notes settlement obligations derivative term (in days) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Notional amounts of forward contracts in U.S. dollars and convertible notes settlement obligations in shares.
[2] | Included in accounts payable and accrued expenses for forward contracts and in current debt for convertible notes settlement obligations.
[3] | Included in other noncurrent liabilities.
[4] | Included in accounts payable and accrued expenses.

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The cash outflow for a derivative instruments or financial contracts that are either (1) without hedge accounting designation or (2) meet the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation. + References No definition available. + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226000-175313 + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Maximum period of time the entity is hedging its exposure to variability in future cash flows for forecasted transactions, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes forecasted transactions related to payment of variable interest on existing financial instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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