<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:byon="http://overstock.com./20260616"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="byon-20260616.xsd" xlink:type="simple"/>
    <context id="c20260616to20260616">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001130713</identifier>
        </entity>
        <period>
            <startDate>2026-06-16</startDate>
            <endDate>2026-06-16</endDate>
        </period>
    </context>
    <context id="c20260616to20260616_StatementClassOfStockAxis_CommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001130713</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-16</startDate>
            <endDate>2026-06-16</endDate>
        </period>
    </context>
    <context id="c20260616to20260616_StatementClassOfStockAxis_WarrantsToPurchaseSharesOfCommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001130713</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">byon:WarrantsToPurchaseSharesOfCommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-16</startDate>
            <endDate>2026-06-16</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="c20260616to20260616"
      id="Fact_04e66880419b4a439967028bba40c2dc">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="c20260616to20260616"
      id="Fact_c4f7c9199df04c2eb31fdbc9d41f98dc">0001130713</dei:EntityCentralIndexKey>
    <dei:SecurityExchangeName
      contextRef="c20260616to20260616_StatementClassOfStockAxis_WarrantsToPurchaseSharesOfCommonStockMember"
      id="Fact_7480024bf71d47299651cd5f05ea3ca7">NYSE</dei:SecurityExchangeName>
    <dei:SecurityExchangeName
      contextRef="c20260616to20260616_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_7af7061478364b1b94abf2b1358e4bd8">NYSE</dei:SecurityExchangeName>
    <dei:DocumentType
      contextRef="c20260616to20260616"
      id="Fact_a6ac6fd2718745838db10e3ba40ef48b">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="c20260616to20260616"
      id="Fact_3953385d213a4a4cac915db5602b62a5">2026-06-16</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="c20260616to20260616"
      id="Fact_22392ea9fa424a468a7a3cd990c37b1a">Bed Bath &amp; Beyond, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="c20260616to20260616"
      id="Fact_4a84f85b93df483bafafd14649cf7924">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="c20260616to20260616"
      id="Fact_caffab0299a44b6fa10777afa60182dc">000-41850</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="c20260616to20260616"
      id="Fact_0a4ddd8bfebd4a48bfe856402d2c1736">87-0634302</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="c20260616to20260616"
      id="Fact_89d11dd1b9db400196ad1759f40ee56a">433 W. Ascension Way</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="c20260616to20260616"
      id="Fact_4b91d910ea3f4602b097bbed24977ec6">3rd Floor</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="c20260616to20260616"
      id="Fact_971f11961cd04e6494468387d727b1ff">Murray</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="c20260616to20260616"
      id="Fact_5cf396bf492e494baf73adafcae8083a">UT</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="c20260616to20260616"
      id="Fact_5bbdc079bd76428fb3d6da928f65bd66">84123</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="c20260616to20260616"
      id="Fact_29c5b8b4633c4eddb2243da9dadb3c6d">801</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="c20260616to20260616"
      id="Fact_38bdd9c1ea944224a6cc8ee1cd415d75">947-3100</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="c20260616to20260616"
      id="Fact_c431afe6ece64575a6930e195ca83422">true</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="c20260616to20260616"
      id="Fact_fe873ab2ed83473fb4ee558e69e88323">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="c20260616to20260616"
      id="Fact_e4da8d49fb2c41ba9d72ce241c47fb8b">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="c20260616to20260616"
      id="Fact_4a2f0057ca314226aa86b8cfc38ec355">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="c20260616to20260616_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_ad5a6d12aa3a44f0890844338a8420e5">Common Stock, $0.0001 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20260616to20260616_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_6bf52e5ee4214c10b6531b5346dc10fd">BBBY</dei:TradingSymbol>
    <dei:Security12bTitle
      contextRef="c20260616to20260616_StatementClassOfStockAxis_WarrantsToPurchaseSharesOfCommonStockMember"
      id="Fact_cfbba6af14124b299ece83b203e584e4">Warrants to Purchase Shares of Common Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20260616to20260616_StatementClassOfStockAxis_WarrantsToPurchaseSharesOfCommonStockMember"
      id="Fact_9389a7d90e824f269f7778bb1611a7c4">BBBY WS</dei:TradingSymbol>
    <dei:EntityEmergingGrowthCompany
      contextRef="c20260616to20260616"
      id="Fact_72f5ddb3aa5a4e66b935c294117ebd52">false</dei:EntityEmergingGrowthCompany>
</xbrl>
