v2.4.1.9

Redeemable Convertible Notes (Details) (USD $) In Millions, unless otherwise specified | Dec. 04, 2014 | Aug. 28, 2014
--- | --- | ---
Debt Instrument [Line Items] |  |
Redeemable convertible notes | $ 53 mu_ConvertibleDebtEquity | $ 57 mu_ConvertibleDebtEquity
2033E and 2033F convertible senior notes [Member] |  |
Debt Instrument [Line Items] |  |
Redeemable convertible notes | $ 53 mu_ConvertibleDebtEquity / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033Member | $ 57 mu_ConvertibleDebtEquity / us-gaap_DebtInstrumentAxis = mu_ConvertibleSeniorNotesDue2033Member

X
- Definition The equity component of convertible debt that will be settled in cash upon conversion, which has been reclassified to mezzanine (temporary equity) because the debt is convertible at the reporting date. The amount is equal to the difference between the principal amount and the carrying value of the debt. + References No definition available. + Details
Name: | mu_ConvertibleDebtEquity
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNotesDue2033Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |