<?xml version="1.0" encoding="utf-8"?>
<xbrl
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  xmlns:dei="http://xbrl.sec.gov/dei/2021"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2021-01-31"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="avgo-20220706.xsd" xlink:type="simple"/>
    <context id="c20220706to20220706">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001730168</identifier>
        </entity>
        <period>
            <startDate>2022-07-06</startDate>
            <endDate>2022-07-06</endDate>
        </period>
    </context>
    <context id="c20220706to20220706_StatementClassOfStockAxis_CommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001730168</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
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        </entity>
        <period>
            <startDate>2022-07-06</startDate>
            <endDate>2022-07-06</endDate>
        </period>
    </context>
    <context id="c20220706to20220706_StatementClassOfStockAxis_SeriesAPreferredStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001730168</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:SeriesAPreferredStockMember</xbrldi:explicitMember>
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        </entity>
        <period>
            <startDate>2022-07-06</startDate>
            <endDate>2022-07-06</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="c20220706to20220706"
      id="Fact_9074323375534a4d8d25239210dd4637">false</dei:AmendmentFlag>
    <dei:EntityAddressAddressLine1
      contextRef="c20220706to20220706"
      id="Fact_4a56cf9976e94bafbefd2f784dd0425d">1320 RIDDER PARK DRIVE</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="c20220706to20220706"
      id="Fact_1a7dfcf3ab9c499b93d79be8079ca732">SAN JOSE</dei:EntityAddressCityOrTown>
    <dei:EntityCentralIndexKey
      contextRef="c20220706to20220706"
      id="Fact_39af99b840e54f70aae5b0031ba59fee">0001730168</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="c20220706to20220706"
      id="Fact_a5a1d0138d554baa8efb443f0b65dd3f">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="c20220706to20220706"
      id="Fact_9fd62e7f96144e359e7c20558195d68d">2022-07-06</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="c20220706to20220706"
      id="Fact_2876b12d906745208f87e9b0c496ca2b">Broadcom Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="c20220706to20220706"
      id="Fact_55a3f10cd867411eb87bddac4002d4f0">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="c20220706to20220706"
      id="Fact_686394bbc14144f0bb260a0993817ac0">001-38449</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="c20220706to20220706"
      id="Fact_8dfe8723c9844801af155185257a8372">35-2617337</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressStateOrProvince
      contextRef="c20220706to20220706"
      id="Fact_36332f71d3fd43b285058e0a2ac5eb22">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="c20220706to20220706"
      id="Fact_3b257f6c209f4223aee094fd74463783">95131</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="c20220706to20220706"
      id="Fact_8aed24d7086b41889d0a6e5e27c85159">408</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="c20220706to20220706"
      id="Fact_187d9386731d4eaf9bf52688c771caad">433-8000</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="c20220706to20220706"
      id="Fact_fb9637af1ac248a0a0df078c84edc871">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="c20220706to20220706"
      id="Fact_d819d807f94d479db56d36131062734e">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="c20220706to20220706"
      id="Fact_67fa32ed187e45c8a6a3ff1c34a1f7d2">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="c20220706to20220706"
      id="Fact_2b6d79a46034438f8430f4bff191928c">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="c20220706to20220706_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_addb9bae7e4e4d8dbe6e217a43670164">Common Stock, $0.001 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20220706to20220706_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_d8d9b5a34df7474ba18eeeea0d4b4d67">AWGO</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="c20220706to20220706_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_c54bd4321edb4b82bfc4060bfd753321">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="c20220706to20220706_StatementClassOfStockAxis_SeriesAPreferredStockMember"
      id="Fact_f30f1e385ad144a38e84704819a70656">8.00% Mandatory Convertible Preferred Stock, Series A, $0.001 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20220706to20220706_StatementClassOfStockAxis_SeriesAPreferredStockMember"
      id="Fact_e46c966b1a87455a9c2e82d5f26e1378">AVGOP</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="c20220706to20220706_StatementClassOfStockAxis_SeriesAPreferredStockMember"
      id="Fact_09237ccf221e45bc83b5da10f3acf2d6">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="c20220706to20220706"
      id="Fact_17e7b2f5d530459cb08c3c5cba6e07be">false</dei:EntityEmergingGrowthCompany>
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