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            <identifier scheme="http://www.sec.gov/CIK">0001786352</identifier>
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            <startDate>2026-05-22</startDate>
            <endDate>2026-05-22</endDate>
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    <dei:EntityAddressAddressLine1 contextRef="c-1" id="f-21">6220 America Center Drive, Suite 100</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="c-1" id="f-22">San Jose</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="c-1" id="f-23">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityCentralIndexKey contextRef="c-1" id="f-24">0001786352</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag contextRef="c-1" id="f-25">true</dei:AmendmentFlag>
    <dei:DocumentPeriodEndDate contextRef="c-1" id="f-26">2026-05-22</dei:DocumentPeriodEndDate>
    <dei:DocumentType contextRef="c-1" id="f-1">8-K/A</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="c-1" id="f-2">2026-05-22</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="c-1" id="f-3">BILL Holdings, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="c-1" id="f-4">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="c-1" id="f-5">001-39149</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="c-1" id="f-6">83-2661725</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="c-1" id="f-7">6220 America Center Drive, Suite 100</dei:EntityAddressAddressLine1>
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    <dei:EntityAddressStateOrProvince contextRef="c-1" id="f-9">CA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="c-1" id="f-10">95002</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="c-1" id="f-11">650</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="c-1" id="f-12">621-7700</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="c-1" id="f-13">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="c-1" id="f-14">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="c-1" id="f-15">false</dei:PreCommencementTenderOffer>
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    <dei:Security12bTitle contextRef="c-1" id="f-17">Common Stock, $0.00001 par value</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="c-1" id="f-18">BILL</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="c-1" id="f-19">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="c-1" id="f-20">false</dei:EntityEmergingGrowthCompany>
    <dei:AmendmentDescription contextRef="c-1" id="f-27">On May 26, 2026, BILL Holdings, Inc. (the &#x201c;Company&#x201d;) filed a Current Report on Form 8-K (the &#x201c;Original Form 8-K&#x201d;) announcing certain executive leadership and organizational updates, including the departure of Ken Moss, the Company&#x2019;s Chief Technology Officer, and Mary Kay Bowman, the Company&#x2019;s Executive Vice President and General Manager of Payments and Financial Services, from the Company, in each case effective as of June 30, 2026 (the &#x201c;Effective Date&#x201d;). The Original Form 8-K is being amended to disclose certain compensatory and advisory arrangements for Mr. Moss and Ms. Bowman made following the Effective Date.</dei:AmendmentDescription>
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