XML 123 R107.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Income Taxes Income Taxes - Valuation Allowances (Details 5) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Aug. 30, 2018 | Aug. 31, 2017
Valuation Allowance [Line Items] |  |
Valuation allowance | $ 228 | $ 2,321
Decrease in operating loss carryforward DTA from changes in expected utilization (offset by change in VA) | 119 |
U.S. |  |
Valuation Allowance [Line Items] |  |
Valuation allowance | 28 | 1,520
Japan |  |
Valuation Allowance [Line Items] |  |
Valuation allowance | 192 | 627
Other foreign subsidiaries member |  |
Valuation Allowance [Line Items] |  |
Valuation allowance | $ 8 | $ 172

X
- Definition Increase (decrease) in deferred tax assets attributable to deductible operating loss carryforwards. + References No definition available. + Details
Name: | mu_IncreaseDecreaseDeferredTaxAssetsOperatingLossCarryforwards
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_JP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=mu_OtherforeignsubsidiariesmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |