<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:EXE="http://chk.com/20250930"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  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="exe-20250930.xsd" xlink:type="simple"/>
    <context id="AsOf2025-09-30">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000895126</identifier>
        </entity>
        <period>
            <startDate>2025-09-30</startDate>
            <endDate>2025-09-30</endDate>
        </period>
    </context>
    <context id="From2025-09-302025-09-30_us-gaap_CommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000895126</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-09-30</startDate>
            <endDate>2025-09-30</endDate>
        </period>
    </context>
    <context id="From2025-09-302025-09-30_custom_ClassaWarrantsToPurchaseCommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000895126</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">EXE:ClassaWarrantsToPurchaseCommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-09-30</startDate>
            <endDate>2025-09-30</endDate>
        </period>
    </context>
    <context id="From2025-09-302025-09-30_custom_ClassbWarrantsToPurchaseCommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000895126</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">EXE:ClassbWarrantsToPurchaseCommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-09-30</startDate>
            <endDate>2025-09-30</endDate>
        </period>
    </context>
    <context id="From2025-09-302025-09-30_custom_ClasscWarrantsToPurchaseCommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000895126</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">EXE:ClasscWarrantsToPurchaseCommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-09-30</startDate>
            <endDate>2025-09-30</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <unit id="USDPShares">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
            </unitNumerator>
            <unitDenominator>
                <measure>shares</measure>
            </unitDenominator>
        </divide>
    </unit>
    <dei:AmendmentFlag contextRef="AsOf2025-09-30" id="Fact000003">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey contextRef="AsOf2025-09-30" id="Fact000004">0000895126</dei:EntityCentralIndexKey>
    <dei:DocumentType contextRef="AsOf2025-09-30" id="Fact000009">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate contextRef="AsOf2025-09-30" id="Fact000010">2025-09-30</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName contextRef="AsOf2025-09-30" id="Fact000011">EXPAND ENERGY CORPORATION</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode contextRef="AsOf2025-09-30" id="Fact000012">OK</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="AsOf2025-09-30" id="Fact000013">001-13726</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber contextRef="AsOf2025-09-30" id="Fact000014">73-1395733</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1 contextRef="AsOf2025-09-30" id="Fact000015">6100 North Western Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown contextRef="AsOf2025-09-30" id="Fact000016">Oklahoma City</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince contextRef="AsOf2025-09-30" id="Fact000017">OK</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode contextRef="AsOf2025-09-30" id="Fact000018">73118</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode contextRef="AsOf2025-09-30" id="Fact000019">405</dei:CityAreaCode>
    <dei:LocalPhoneNumber contextRef="AsOf2025-09-30" id="Fact000020">848-8000</dei:LocalPhoneNumber>
    <dei:WrittenCommunications contextRef="AsOf2025-09-30" id="Fact000021">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial contextRef="AsOf2025-09-30" id="Fact000022">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer contextRef="AsOf2025-09-30" id="Fact000023">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer contextRef="AsOf2025-09-30" id="Fact000024">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="From2025-09-302025-09-30_us-gaap_CommonStockMember"
      id="Fact000025">Common Stock, $0.01 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2025-09-302025-09-30_us-gaap_CommonStockMember"
      id="Fact000026">EXE</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2025-09-302025-09-30_us-gaap_CommonStockMember"
      id="Fact000027">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2025-09-302025-09-30_custom_ClassaWarrantsToPurchaseCommonStockMember"
      id="Fact000028">Class&#160;A Warrants to purchase Common Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2025-09-302025-09-30_custom_ClassaWarrantsToPurchaseCommonStockMember"
      id="Fact000029">EXEEW</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2025-09-302025-09-30_custom_ClassaWarrantsToPurchaseCommonStockMember"
      id="Fact000030">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2025-09-302025-09-30_custom_ClassbWarrantsToPurchaseCommonStockMember"
      id="Fact000031">Class&#160;B Warrants to purchase Common Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2025-09-302025-09-30_custom_ClassbWarrantsToPurchaseCommonStockMember"
      id="Fact000032">EXEEZ</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2025-09-302025-09-30_custom_ClassbWarrantsToPurchaseCommonStockMember"
      id="Fact000033">NASDAQ</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="From2025-09-302025-09-30_custom_ClasscWarrantsToPurchaseCommonStockMember"
      id="Fact000034">Class&#160;C Warrants to purchase Common Stock</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="From2025-09-302025-09-30_custom_ClasscWarrantsToPurchaseCommonStockMember"
      id="Fact000035">EXEEL</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="From2025-09-302025-09-30_custom_ClasscWarrantsToPurchaseCommonStockMember"
      id="Fact000036">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany contextRef="AsOf2025-09-30" id="Fact000037">false</dei:EntityEmergingGrowthCompany>
</xbrl>
