<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:mstr="http://www.strategysoftware.com/20260504"
  xmlns:us-gaap="http://fasb.org/us-gaap/2026"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="mstr-20260504.xsd" xlink:type="simple"/>
    <context id="C_e8f35e10-f115-4a18-a449-61bcf6b8994f">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M1000SeriesAPerpetualStrifePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_05d34571-9f3a-486c-96a6-e0acc1dbf401">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_080a71c7-be8b-4130-b89b-b6e64801436a">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
        </entity>
        <period>
            <startDate>2026-05-04</startDate>
            <endDate>2026-05-04</endDate>
        </period>
    </context>
    <context id="C_2da0afbf-ebc4-4597-8182-84739e4a0d6b">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:VariableRateSeriesAPerpetualStretchPreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_4c4d26cf-af2f-45a8-bfd5-05dde12a3dd3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M800SeriesAPerpetualStrikePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_596ee1f1-e41a-4678-8e48-eebc0c1f8f6c">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <context id="C_7b3e493c-b7e8-4942-b166-871ed5d0f610">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001050446</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">mstr:M1000SeriesAPerpetualStridePreferredStock0001ParValuePerShareMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-02-23</startDate>
            <endDate>2026-02-23</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_c3ce5d44-7f6b-44bf-8d34-83e832fd5f7d">0001050446</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_f05fc027-a8d8-4ae1-8938-51d55f0f20e0">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_4c7a6fb9-4c4f-4668-89ef-1df45bef1fb4">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="C_080a71c7-be8b-4130-b89b-b6e64801436a"
      id="F_30c22720-cb6e-4060-9c48-75e8dc1ec2bb">2026-06-15</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_94f38dd6-4507-4be9-9d23-73e9c6220c27">STRATEGY INC </dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_82c1e245-3dda-43e6-a5de-97c9c829e963">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_306869bd-1359-4e1a-8cf1-ab58be2e76d0">001-42509</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_84ada0b8-c47f-4d87-a677-fa32dfa07052">51-0323571</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_3329492f-a3d6-4b6b-ac01-a50e566b65bf">1850 Towers Crescent Plaza</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_c1aec46f-a086-48dd-93d8-63107551ed5b">Tysons Corner</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_484e165a-14ec-4f3b-b75c-7d28315c7f9e">VA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_75896ef5-b0c2-4a3e-bd7b-351d16b78703">22182</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_7a1ed016-7145-4366-b2b1-b930e2e1af0d">(703)</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_83c05c91-70a1-4cce-b4eb-c476b63d864b">848-8600</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_8af47b9e-be5a-40d8-92eb-04cc82b5663d">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_c1b5e262-28e5-4db1-a8a6-c45f128028cb">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_9fb057f4-454a-41cd-9428-12c93a815783">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_c13c1ac5-9e74-4fde-b639-7d33b1bdbcb7">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="C_e8f35e10-f115-4a18-a449-61bcf6b8994f"
      id="F_59f2d384-3f4a-4c0e-a7ea-07f16e2f9336">10.00% Series A Perpetual Strife Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_e8f35e10-f115-4a18-a449-61bcf6b8994f"
      id="F_8c2f9739-4dca-456d-827b-7537d72af22b">STRF</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_e8f35e10-f115-4a18-a449-61bcf6b8994f"
      id="F_97652f4d-af12-431e-812c-10ee66a69184">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_2da0afbf-ebc4-4597-8182-84739e4a0d6b"
      id="F_6e4c2218-1e7f-4ef7-ab07-91029629fe6b">Variable Rate Series A Perpetual Stretch Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_2da0afbf-ebc4-4597-8182-84739e4a0d6b"
      id="F_eb15faad-b4fd-4ddc-9d11-0c5de6be745c">STRC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_2da0afbf-ebc4-4597-8182-84739e4a0d6b"
      id="F_d4ce8d9a-2231-43da-a52a-9dff7322404c">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_4c4d26cf-af2f-45a8-bfd5-05dde12a3dd3"
      id="F_0ad62285-5ac8-4772-afaf-8c0092c41f9f">8.00% Series A Perpetual Strike Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_4c4d26cf-af2f-45a8-bfd5-05dde12a3dd3"
      id="F_d93f5926-c8b2-497d-9e3d-daf39004b657">STRK</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_4c4d26cf-af2f-45a8-bfd5-05dde12a3dd3"
      id="F_98f71edb-1c4d-464b-860b-94f90651e221">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_7b3e493c-b7e8-4942-b166-871ed5d0f610"
      id="F_952cc126-b21e-4566-ac0e-4d2107ec0ff2">10.00% Series A Perpetual Stride Preferred Stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_7b3e493c-b7e8-4942-b166-871ed5d0f610"
      id="F_7cd58909-e8da-434e-8ab1-abf7307618c2">STRD</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_7b3e493c-b7e8-4942-b166-871ed5d0f610"
      id="F_eefece36-34a8-4d78-9e77-461a0ca100ee">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="C_596ee1f1-e41a-4678-8e48-eebc0c1f8f6c"
      id="F_731ae9da-4cd6-469d-bac7-b2e8ede1ba06">Class A common stock, $0.001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="C_596ee1f1-e41a-4678-8e48-eebc0c1f8f6c"
      id="F_1be38c66-9b51-497a-a245-b4e5d0f87e4c">MSTR</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="C_596ee1f1-e41a-4678-8e48-eebc0c1f8f6c"
      id="F_a6e6488e-6b3d-426d-9c22-25b49d222d1a">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="C_05d34571-9f3a-486c-96a6-e0acc1dbf401"
      id="F_1b490e36-c86f-4f80-958e-0c119dfa5278">false</dei:EntityEmergingGrowthCompany>
</xbrl>
