<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="mu-20211220.xsd" xlink:type="simple"/>
    <context id="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000723125</identifier>
        </entity>
        <period>
            <startDate>2021-12-20</startDate>
            <endDate>2021-12-20</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF80L2ZyYWc6MmRmNjU1MDRjZmI4NDg2Nzg2NWUzYzgyOTAxZDE1NDkvdGFibGU6YWY3ODJjODAyOTJmNDRkZDk1ZWJjMDVmN2VkMWEwNmQvdGFibGVyYW5nZTphZjc4MmM4MDI5MmY0NGRkOTVlYmMwNWY3ZWQxYTA2ZF8wLTEtMS0xLTQyOTQy_fbab068d-a1b4-43bf-abfb-293092ec0e3c">0000723125</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF80L2ZyYWc6MmRmNjU1MDRjZmI4NDg2Nzg2NWUzYzgyOTAxZDE1NDkvdGFibGU6YWY3ODJjODAyOTJmNDRkZDk1ZWJjMDVmN2VkMWEwNmQvdGFibGVyYW5nZTphZjc4MmM4MDI5MmY0NGRkOTVlYmMwNWY3ZWQxYTA2ZF8xLTEtMS0xLTQyOTQy_29438cd7-3361-46a5-9482-1d8d734bcd02">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDQ4_f54898e5-5385-4acd-9c92-d75cce1aefc7">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8xNzg_722cac84-bdfe-4649-8d81-4414f8787316">2021-12-20</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YTM0NzI2NDI5N2U0NDI1ZjgyMTQ0OGY1NmFlNjM0MTkvdGFibGVyYW5nZTphMzQ3MjY0Mjk3ZTQ0MjVmODIxNDQ4ZjU2YWU2MzQxOV8wLTAtMS0xLTQyOTQy_aaadb814-38cd-4df9-b384-7cbaf493814f">MICRON TECHNOLOGY, INC.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YjUwM2ZiM2MwZDc2NDBmMWE1ZDEwMTZkMzM1ZWM3ZTcvdGFibGVyYW5nZTpiNTAzZmIzYzBkNzY0MGYxYTVkMTAxNmQzMzVlYzdlN18wLTAtMS0xLTQyOTQy_c9da7107-7e0b-440b-a78b-2726520f4ec7">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YjUwM2ZiM2MwZDc2NDBmMWE1ZDEwMTZkMzM1ZWM3ZTcvdGFibGVyYW5nZTpiNTAzZmIzYzBkNzY0MGYxYTVkMTAxNmQzMzVlYzdlN18wLTItMS0xLTQyOTQy_5e7c35d5-3be3-4d0f-a8c8-3c3bdd96b485">1-10658</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YjUwM2ZiM2MwZDc2NDBmMWE1ZDEwMTZkMzM1ZWM3ZTcvdGFibGVyYW5nZTpiNTAzZmIzYzBkNzY0MGYxYTVkMTAxNmQzMzVlYzdlN18wLTQtMS0xLTQyOTQy_ce48c70e-d5ec-480c-9dc4-21bd76c8399e">75-1618004</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6ZmRjMWE3Y2M1NjIwNGNkNjk1NmQ3MDJkMmM2NzBhN2IvdGFibGVyYW5nZTpmZGMxYTdjYzU2MjA0Y2Q2OTU2ZDcwMmQyYzY3MGE3Yl8wLTAtMS0xLTQyOTQy_66fb54f0-51b8-40fd-80e2-20aed54ff38d">8000 South Federal Way</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6ZmRjMWE3Y2M1NjIwNGNkNjk1NmQ3MDJkMmM2NzBhN2IvdGFibGVyYW5nZTpmZGMxYTdjYzU2MjA0Y2Q2OTU2ZDcwMmQyYzY3MGE3Yl8xLTAtMS0xLTQyOTQyL3RleHRyZWdpb246ODEzODRiYjQ4YzliNDc3MjhhMjExZDBlMDljMGM0ZjdfNA_89406711-155e-40e8-bda8-0c774fa150c6">Boise</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6ZmRjMWE3Y2M1NjIwNGNkNjk1NmQ3MDJkMmM2NzBhN2IvdGFibGVyYW5nZTpmZGMxYTdjYzU2MjA0Y2Q2OTU2ZDcwMmQyYzY3MGE3Yl8xLTAtMS0xLTQyOTQyL3RleHRyZWdpb246ODEzODRiYjQ4YzliNDc3MjhhMjExZDBlMDljMGM0ZjdfOA_913d0cc0-e58e-4e60-9459-9dab5a746cc6">ID</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6ZmRjMWE3Y2M1NjIwNGNkNjk1NmQ3MDJkMmM2NzBhN2IvdGFibGVyYW5nZTpmZGMxYTdjYzU2MjA0Y2Q2OTU2ZDcwMmQyYzY3MGE3Yl8xLTAtMS0xLTQyOTQyL3RleHRyZWdpb246ODEzODRiYjQ4YzliNDc3MjhhMjExZDBlMDljMGM0ZjdfMTI_054a538c-bc9f-4f6d-b76e-d513cdc144ec">83716</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6Zjk2MjcxNzZmNWNmNGQ0N2IzNGE3OGQ3N2JiMGEyN2YvdGFibGVyYW5nZTpmOTYyNzE3NmY1Y2Y0ZDQ3YjM0YTc4ZDc3YmIwYTI3Zl8wLTAtMS0xLTQyOTQyL3RleHRyZWdpb246YjFhZGU0YjIxY2FhNDBjZGIyYWEzZTNiZWQ4OGUzYjBfNQ_c2d0abb5-1042-4664-a8a8-c82be7660b69">208</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6Zjk2MjcxNzZmNWNmNGQ0N2IzNGE3OGQ3N2JiMGEyN2YvdGFibGVyYW5nZTpmOTYyNzE3NmY1Y2Y0ZDQ3YjM0YTc4ZDc3YmIwYTI3Zl8wLTAtMS0xLTQyOTQyL3RleHRyZWdpb246YjFhZGU0YjIxY2FhNDBjZGIyYWEzZTNiZWQ4OGUzYjBfOQ_38a54c68-6be9-4d21-ad26-1eeb18cd5c92">368-4000</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDQ5_1e338662-5757-4724-a1ad-c28ee3eda8a6">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDUw_167c5205-c727-4dcc-ac9e-4ab02d6c59ae">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDQ1_5311d08d-2d1b-41b5-8e87-1baf74f8499c">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDQ2_c2fc15c2-610a-4a1e-a2d0-541657ff6503">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YmI2YTU4Njk3MzMyNGQ1MzhlMTFjMTMwMDhmNTU5ZDUvdGFibGVyYW5nZTpiYjZhNTg2OTczMzI0ZDUzOGUxMWMxMzAwOGY1NTlkNV8xLTAtMS0xLTQyOTQy_23b766c0-ce24-45d1-98b3-568d98396f1f">Common Stock, par value $0.10 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YmI2YTU4Njk3MzMyNGQ1MzhlMTFjMTMwMDhmNTU5ZDUvdGFibGVyYW5nZTpiYjZhNTg2OTczMzI0ZDUzOGUxMWMxMzAwOGY1NTlkNV8xLTItMS0xLTQyOTQy_ad66fd15-70fb-4e1e-a696-685d14603995">MU</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6YmI2YTU4Njk3MzMyNGQ1MzhlMTFjMTMwMDhmNTU5ZDUvdGFibGVyYW5nZTpiYjZhNTg2OTczMzI0ZDUzOGUxMWMxMzAwOGY1NTlkNV8xLTQtMS0xLTQyOTQy_37134c38-89a8-4025-b1e3-becb98978a04">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8yNDQ3_0791cccd-65ec-4373-bb5b-19e877955e7f">false</dei:EntityEmergingGrowthCompany>
    <dei:DocumentPeriodEndDate
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGV4dHJlZ2lvbjoyNDVmMDMxYzU3YTQ0NWUxODg5YTY4OTAyM2ZkNWQyYl8xNDQ3_722cac84-bdfe-4649-8d81-4414f8787316">2021-12-20</dei:DocumentPeriodEndDate>
    <dei:DocumentPeriodEndDate
      contextRef="ifafe18b8ccb44844a7ff6437af62ff16_D20211220-20211220"
      id="id3VybDovL2RvY3MudjEvZG9jOmIzNGNkOGI5NmNkMjQ2MDg4NzQ1MzIwODAyM2FiMzE0L3NlYzpiMzRjZDhiOTZjZDI0NjA4ODc0NTMyMDgwMjNhYjMxNF8xL2ZyYWc6MjQ1ZjAzMWM1N2E0NDVlMTg4OWE2ODkwMjNmZDVkMmIvdGFibGU6OGM3OTE2YTUzZjRmNGNmOWJjZjM0NmQ1YzFmYjEzODEvdGFibGVyYW5nZTo4Yzc5MTZhNTNmNGY0Y2Y5YmNmMzQ2ZDVjMWZiMTM4MV8zLTEtMS0xLTQyOTQy_722cac84-bdfe-4649-8d81-4414f8787316">2021-12-20</dei:DocumentPeriodEndDate>
</xbrl>
