<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.25.4</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1001</ContextCount>
  <ElementCount>739</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>254</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>23</UnitCount>
  <MyReports>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>9952151 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>9952152 - Statement - CONSOLIDATED STATEMENTS OF INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFINCOME</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>9952153 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>9952155 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>9952156 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDBALANCESHEETSParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>9952157 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>9952158 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>9952159 - Statement - CONSOLIDATED STATEMENTS OF EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFEQUITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>9952160 - Statement - CONSOLIDATED STATEMENTS OF INCOME, UTILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUTILITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME, UTILITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>9952161 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME, UTILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUTILITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME, UTILITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>9952162 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME, UTILITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUTILITYParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME, UTILITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>9952163 - Statement - CONSOLIDATED BALANCE SHEETS, UTILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDBALANCESHEETSUTILITY</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS, UTILITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>9952164 - Statement - CONSOLIDATED BALANCE SHEETS, UTILITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDBALANCESHEETSUTILITYParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS, UTILITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>9952165 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS, UTILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUTILITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS, UTILITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9952166 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS, UTILITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUTILITYParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS, UTILITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9952167 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS??? EQUITY, UTILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYUTILITY</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF SHAREHOLDERS??? EQUITY, UTILITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>9952168 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/ORGANIZATIONANDBASISOFPRESENTATION</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9952169 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9952170 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTS</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>9952171 - Disclosure - DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBT</Role>
      <ShortName>DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9952172 - Disclosure - SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUST</Role>
      <ShortName>SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>9952173 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATION</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9952174 - Disclosure - PREFERRED STOCK</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/PREFERREDSTOCK</Role>
      <ShortName>PREFERRED STOCK</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9952175 - Disclosure - EARNINGS PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EARNINGSPERSHARE</Role>
      <ShortName>EARNINGS PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9952176 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXES</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9952177 - Disclosure - DERIVATIVES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DERIVATIVES</Role>
      <ShortName>DERIVATIVES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9952178 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTS</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9952179 - Disclosure - EMPLOYEE BENEFIT PLANS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANS</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9952180 - Disclosure - RELATED PARTY AGREEMENTS AND TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/RELATEDPARTYAGREEMENTSANDTRANSACTIONS</Role>
      <ShortName>RELATED PARTY AGREEMENTS AND TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9952181 - Disclosure - WILDFIRE-RELATED CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIES</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9952182 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTS</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9952183 - Disclosure - SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENT</Role>
      <ShortName>SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9952184 - Disclosure - SCHEDULE II ??? CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEIICONSOLIDATEDVALUATIONANDQUALIFYINGACCOUNTS</Role>
      <ShortName>SCHEDULE II ??? CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995447 - Disclosure - Insider Trading Policies and Procedures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingPoliciesProc</Role>
      <ShortName>Insider Trading Policies and Procedures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/cyd/role/CybersecurityRiskManagementAndStrategyDisclosure</Role>
      <ShortName>Cybersecurity Risk Management and Strategy Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSTables</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTS</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBTTables</Role>
      <ShortName>DEBT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/DEBT</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUSTTables</Role>
      <ShortName>SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUST</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATION</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - PREFERRED STOCK (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/PREFERREDSTOCKTables</Role>
      <ShortName>PREFERRED STOCK (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/PREFERREDSTOCK</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - EARNINGS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EARNINGSPERSHARETables</Role>
      <ShortName>EARNINGS PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/EARNINGSPERSHARE</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXES</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - DERIVATIVES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DERIVATIVESTables</Role>
      <ShortName>DERIVATIVES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/DERIVATIVES</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTS</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANS</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIES</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTS</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/ORGANIZATIONANDBASISOFPRESENTATIONDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/ORGANIZATIONANDBASISOFPRESENTATION</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Segment Reporting) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESSegmentReportingNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Segment Reporting) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Cash, Cash Equivalents, and Restricted Cash, and Restricted Cash Equivalents) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESCashCashEquivalentsandRestrictedCashandRestrictedCashEquivalentsNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Cash, Cash Equivalents, and Restricted Cash, and Restricted Cash Equivalents) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Revenue Recognition) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESRevenueRecognitionNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Revenue Recognition) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Revenues Disaggregated by Type of Customer) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESSummaryofRevenuesDisaggregatedbyTypeofCustomerDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Revenues Disaggregated by Type of Customer) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Financial Assets Measured at Amortized Cost ??? Credit Losses) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESFinancialAssetsMeasuredatAmortizedCostCreditLossesNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Financial Assets Measured at Amortized Cost ??? Credit Losses) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Estimated Useful Lives and Balances of Utilities Property, Plant and Equipment) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofEstimatedUsefulLivesandBalancesofUtilitiesPropertyPlantandEquipmentDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Estimated Useful Lives and Balances of Utilities Property, Plant and Equipment) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Property, Plant and Equipment) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPropertyPlantandEquipmentNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Property, Plant and Equipment) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Allowance for Funds Used During Construction) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAllowanceforFundsUsedDuringConstructionNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Allowance for Funds Used During Construction) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Changes in Asset Retirement Obligations) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofChangesinAssetRetirementObligationsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Changes in Asset Retirement Obligations) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Asset Retirement Obligation) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESAssetRetirementObligationNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Asset Retirement Obligation) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Nuclear Decommissioning Trusts) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNuclearDecommissioningTrustsNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Nuclear Decommissioning Trusts) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Government Assistance) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESGovernmentAssistanceDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Government Assistance) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Schedule Of DWR Loan Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleOfDWRLoanActivityDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Schedule Of DWR Loan Activity) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (VIE) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESVIENarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (VIE) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Wildfire Fund) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESWildfireFundNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Wildfire Fund) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Oakland Headquarters Purchase) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESOaklandHeadquartersPurchaseNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Oakland Headquarters Purchase) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reclassifications Out of Accumulated Other Comprehensive Income) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reclassifications Out of Accumulated Other Comprehensive Income) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9955543 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Leases) (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESLeasesNarrativeDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - (Leases) (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9955544 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Lease Expense) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofLeaseExpenseDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Lease Expense) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9955545 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Future Expected Operating Lease Payments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESFutureExpectedOperatingLeasePaymentsDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Future Expected Operating Lease Payments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9955546 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSLongTermRegulatoryAssetsDetails</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSTables</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9955547 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS - (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSNarrativeDetails</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS - (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9955548 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSLongTermRegulatoryLiabilitiesDetails</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSTables</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>9955549 - Disclosure - REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Current Regulatory Balancing Accounts, Net) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSCurrentRegulatoryBalancingAccountsNetDetails</Role>
      <ShortName>REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Current Regulatory Balancing Accounts, Net) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/REGULATORYASSETSLIABILITIESANDBALANCINGACCOUNTSTables</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>9955550 - Disclosure - DEBT (Outstanding Borrowings and Availability) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBTOutstandingBorrowingsandAvailabilityDetails</Role>
      <ShortName>DEBT (Outstanding Borrowings and Availability) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DEBTTables</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>9955551 - Disclosure - DEBT (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBTNarrativeDetails</Role>
      <ShortName>DEBT (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DEBTTables</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>9955552 - Disclosure - DEBT (Schedule of Long-term Debt) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBTScheduleofLongtermDebtDetails</Role>
      <ShortName>DEBT (Schedule of Long-term Debt) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DEBTTables</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>9955553 - Disclosure - DEBT (Schedule of Contractual Repayment Schedule) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DEBTScheduleofContractualRepaymentScheduleDetails</Role>
      <ShortName>DEBT (Schedule of Contractual Repayment Schedule) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DEBTTables</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>9955554 - Disclosure - SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUSTNarrativeDetails</Role>
      <ShortName>SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUSTTables</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>9955555 - Disclosure - SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Financial Statement Impact) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUSTFinancialStatementImpactDetails</Role>
      <ShortName>SB 901 SECURITIZATION AND CUSTOMER CREDIT TRUST (Financial Statement Impact) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SB901SECURITIZATIONANDCUSTOMERCREDITTRUSTTables</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>9955556 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONNarrativeDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>9955557 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION - (Schedule of Dividend Paid) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONScheduleofDividendPaidDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION - (Schedule of Dividend Paid) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>9955558 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Long-term Incentive Plan) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONLongtermIncentivePlanDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Long-term Incentive Plan) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>86</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>9955559 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Summary of Stock Option Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONSummaryofStockOptionActivityDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Summary of Stock Option Activity) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>87</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>9955560 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Restricted Stock Units) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONRestrictedStockUnitsDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Restricted Stock Units) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>88</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>9955561 - Disclosure - COMMON STOCK AND SHARE-BASED COMPENSATION (Performance Shares) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONPerformanceSharesDetails</Role>
      <ShortName>COMMON STOCK AND SHARE-BASED COMPENSATION (Performance Shares) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/COMMONSTOCKANDSHAREBASEDCOMPENSATIONTables</ParentRole>
      <Position>89</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>9955562 - Disclosure - PREFERRED STOCK - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/PREFERREDSTOCKNarrativeDetails</Role>
      <ShortName>PREFERRED STOCK - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>9955563 - Disclosure - PREFERRED STOCK - (Schedule of Dividend Paid or Declared) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/PREFERREDSTOCKScheduleofDividendPaidorDeclaredDetails</Role>
      <ShortName>PREFERRED STOCK - (Schedule of Dividend Paid or Declared) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/PREFERREDSTOCKTables</ParentRole>
      <Position>91</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>9955564 - Disclosure - EARNINGS PER SHARE (Reconciliation of PG&amp;E Corporation's Income Available for Common Shareholders and Weighted Average Shares of Common Stock Outstanding for Calculating Diluted EPS) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EARNINGSPERSHAREReconciliationofPGECorporationsIncomeAvailableforCommonShareholdersandWeightedAverageSharesofCommonStockOutstandingforCalculatingDilutedEPSDetails</Role>
      <ShortName>EARNINGS PER SHARE (Reconciliation of PG&amp;E Corporation's Income Available for Common Shareholders and Weighted Average Shares of Common Stock Outstanding for Calculating Diluted EPS) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EARNINGSPERSHARETables</ParentRole>
      <Position>92</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>9955565 - Disclosure - INCOME TAXES (Schedule of Income Tax Expense (Benefit) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESScheduleofIncomeTaxExpenseBenefitDetails</Role>
      <ShortName>INCOME TAXES (Schedule of Income Tax Expense (Benefit) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>9955566 - Disclosure - INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESScheduleofDeferredTaxAssetsandLiabilitiesDetails</Role>
      <ShortName>INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>9955567 - Disclosure - INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESScheduleofEffectiveIncomeTaxRateReconciliationDetails</Role>
      <ShortName>INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>95</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>9955568 - Disclosure - INCOME TAXES (Schedule of Change in Unrecognized Tax Benefits) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESScheduleofChangeinUnrecognizedTaxBenefitsDetails</Role>
      <ShortName>INCOME TAXES (Schedule of Change in Unrecognized Tax Benefits) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>96</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>9955569 - Disclosure - INCOME TAXES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESNarrativeDetails</Role>
      <ShortName>INCOME TAXES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>9955570 - Disclosure - INCOME TAXES (Summary of Operating Loss and Tax Credit Carryforward) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/INCOMETAXESSummaryofOperatingLossandTaxCreditCarryforwardDetails</Role>
      <ShortName>INCOME TAXES (Summary of Operating Loss and Tax Credit Carryforward) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/INCOMETAXESTables</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>9955571 - Disclosure - DERIVATIVES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DERIVATIVESNarrativeDetails</Role>
      <ShortName>DERIVATIVES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DERIVATIVESTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>9955572 - Disclosure - DERIVATIVES (Volumes of Outstanding Derivative Contracts) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DERIVATIVESVolumesofOutstandingDerivativeContractsDetails</Role>
      <ShortName>DERIVATIVES (Volumes of Outstanding Derivative Contracts) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DERIVATIVESTables</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>9955573 - Disclosure - DERIVATIVES (Outstanding Derivative Balances) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/DERIVATIVESOutstandingDerivativeBalancesDetails</Role>
      <ShortName>DERIVATIVES (Outstanding Derivative Balances) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/DERIVATIVESTables</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>9955574 - Disclosure - FAIR VALUE MEASUREMENTS (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>9955575 - Disclosure - FAIR VALUE MEASUREMENTS (Level 3 Measurements and Sensitivity Analysis) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSLevel3MeasurementsandSensitivityAnalysisDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Level 3 Measurements and Sensitivity Analysis) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>103</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>9955576 - Disclosure - FAIR VALUE MEASUREMENTS (Level 3 Reconciliation) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSLevel3ReconciliationDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Level 3 Reconciliation) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>104</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>9955577 - Disclosure - FAIR VALUE MEASUREMENTS (Carrying Amount and Fair Value of Financial Instruments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSCarryingAmountandFairValueofFinancialInstrumentsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Carrying Amount and Fair Value of Financial Instruments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>105</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>9955578 - Disclosure - FAIR VALUE MEASUREMENTS (Schedule of Unrealized Gains Losses Related to Available-for-sale Investments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSScheduleofUnrealizedGainsLossesRelatedtoAvailableforsaleInvestmentsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Schedule of Unrealized Gains Losses Related to Available-for-sale Investments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>9955579 - Disclosure - FAIR VALUE MEASUREMENTS (Schedule of Maturities on Debt Securities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSScheduleofMaturitiesonDebtSecuritiesDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Schedule of Maturities on Debt Securities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>9955580 - Disclosure - FAIR VALUE MEASUREMENTS (Schedule of Activity for Debt and Equity Securities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/FAIRVALUEMEASUREMENTSScheduleofActivityforDebtandEquitySecuritiesDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Schedule of Activity for Debt and Equity Securities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/FAIRVALUEMEASUREMENTSTables</ParentRole>
      <Position>108</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>9955581 - Disclosure - EMPLOYEE BENEFIT PLANS (Reconciliation of Changes in Plan Assets Benefit Obligations and Funded Status) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSReconciliationofChangesinPlanAssetsBenefitObligationsandFundedStatusDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Reconciliation of Changes in Plan Assets Benefit Obligations and Funded Status) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>109</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>9955582 - Disclosure - EMPLOYEE BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSComponentsofNetPeriodicBenefitCostDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>110</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>9955583 - Disclosure - EMPLOYEE BENEFIT PLANS (Schedule of Assumptions Used in Calculating Projected Benefit Cost and Net Periodic Benefit Cost) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSScheduleofAssumptionsUsedinCalculatingProjectedBenefitCostandNetPeriodicBenefitCostDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Schedule of Assumptions Used in Calculating Projected Benefit Cost and Net Periodic Benefit Cost) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>111</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>9955584 - Disclosure - EMPLOYEE BENEFIT PLANS (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSNarrativeDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>112</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>9955585 - Disclosure - EMPLOYEE BENEFIT PLANS (Target Asset Allocation Percentages) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSTargetAssetAllocationPercentagesDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Target Asset Allocation Percentages) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>113</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>9955586 - Disclosure - EMPLOYEE BENEFIT PLANS (Schedule of Fair Value of Plan Assets) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSScheduleofFairValueofPlanAssetsDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Schedule of Fair Value of Plan Assets) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>114</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>9955587 - Disclosure - EMPLOYEE BENEFIT PLANS (Schedule of Level 3 Reconciliation) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSScheduleofLevel3ReconciliationDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Schedule of Level 3 Reconciliation) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>115</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>9955588 - Disclosure - EMPLOYEE BENEFIT PLANS (Schedule of Estimated Benefits Expected to Be Paid) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/EMPLOYEEBENEFITPLANSScheduleofEstimatedBenefitsExpectedtoBePaidDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Schedule of Estimated Benefits Expected to Be Paid) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/EMPLOYEEBENEFITPLANSTables</ParentRole>
      <Position>116</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>9955589 - Disclosure - WILDFIRE-RELATED CONTINGENCIES - Litigation Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESLitigationPaymentsDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES - Litigation Payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>9955590 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (2019 Kincade Fire, 2021 Dixie Fire and 2022 Mosquito Fire) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIES2019KincadeFire2021DixieFireand2022MosquitoFireDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (2019 Kincade Fire, 2021 Dixie Fire and 2022 Mosquito Fire) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>118</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>9955591 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Losses For Claims) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESLossesForClaimsDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Losses For Claims) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>119</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>9955592 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESLossRecoveriesDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Loss Recoveries) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>120</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>9955593 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Self-Insurance) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESSelfInsuranceDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Self-Insurance) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>121</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>9955594 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Insurance Receivable) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESInsuranceReceivableDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Insurance Receivable) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>122</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>9955595 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Regulatory Recovery) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESRegulatoryRecoveryDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Regulatory Recovery) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>123</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>9955596 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Wildfire Fund) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESWildfireFundDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Wildfire Fund) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>124</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>9955597 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Changes in Accrued Wildfire Fund Recoveries) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESChangesinAccruedWildfireFundRecoveriesDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Changes in Accrued Wildfire Fund Recoveries) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>125</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>9955598 - Disclosure - WILDFIRE-RELATED CONTINGENCIES (Wildfire-Related Securities Securities Litigation and Claims in District Court) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESWildfireRelatedSecuritiesSecuritiesLitigationandClaimsinDistrictCourtDetails</Role>
      <ShortName>WILDFIRE-RELATED CONTINGENCIES (Wildfire-Related Securities Securities Litigation and Claims in District Court) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/WILDFIRERELATEDCONTINGENCIESTables</ParentRole>
      <Position>126</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>9955599 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Interim Rate Relief Subject to Refund) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSInterimRateReliefSubjecttoRefundDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Interim Rate Relief Subject to Refund) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>127</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>9955600 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Other Matters) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSOtherMattersDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Other Matters) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>128</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>9955601 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Schedule Environmental Remediation Liability Composed) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSScheduleEnvironmentalRemediationLiabilityComposedDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Schedule Environmental Remediation Liability Composed) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>129</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>9955602 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Environmental Remediation Contingencies Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSEnvironmentalRemediationContingenciesNarrativeDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Environmental Remediation Contingencies Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>130</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>9955603 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Environmental Remediation Contingencies) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSScheduleofEnvironmentalRemediationContingenciesDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Environmental Remediation Contingencies) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>131</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>9955604 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Nuclear Insurance and Purchase Commitments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSNuclearInsuranceandPurchaseCommitmentsDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Nuclear Insurance and Purchase Commitments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>132</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>9955605 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Purchase Commitments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSScheduleofPurchaseCommitmentsDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Purchase Commitments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>133</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>9955606 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Third-Party Power Purchase Agreements and Other Agreements) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSThirdPartyPowerPurchaseAgreementsandOtherAgreementsDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Third-Party Power Purchase Agreements and Other Agreements) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>134</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>9955607 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Other Commitments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSScheduleofOtherCommitmentsDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Schedule of Other Commitments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>135</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>9955608 - Disclosure - OTHER CONTINGENCIES AND COMMITMENTS (Other Commitments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSOtherCommitmentsDetails</Role>
      <ShortName>OTHER CONTINGENCIES AND COMMITMENTS (Other Commitments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/OTHERCONTINGENCIESANDCOMMITMENTSTables</ParentRole>
      <Position>136</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>9955609 - Disclosure - SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Income Statement and Comprehensive Income) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENTScheduleofCondensedIncomeStatementandComprehensiveIncomeDetails</Role>
      <ShortName>SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Income Statement and Comprehensive Income) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENT</ParentRole>
      <Position>137</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>9955610 - Disclosure - SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Balance Sheet) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENTScheduleofCondensedBalanceSheetDetails</Role>
      <ShortName>SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Balance Sheet) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENT</ParentRole>
      <Position>138</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>9955611 - Disclosure - SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Statement of Cash Flows) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENTScheduleofCondensedStatementofCashFlowsDetails</Role>
      <ShortName>SCHEDULE I ??? CONSOLIDATED FINANCIAL INFORMATION OF PARENT (Schedule of Condensed Statement of Cash Flows) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SCHEDULEICONSOLIDATEDFINANCIALINFORMATIONOFPARENT</ParentRole>
      <Position>139</Position>
    </Report>
    <Report instance="pcg-20251231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>9955612 - Disclosure - SCHEDULE II ??? CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.company.com/role/SCHEDULEIICONSOLIDATEDVALUATIONANDQUALIFYINGACCOUNTSDetails</Role>
      <ShortName>SCHEDULE II ??? CONSOLIDATED VALUATION AND QUALIFYING ACCOUNTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.company.com/role/SCHEDULEIICONSOLIDATEDVALUATIONANDQUALIFYINGACCOUNTS</ParentRole>
      <Position>140</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="pcg-20251231.htm">pcg-20251231.htm</File>
    <File>pcg-20251231.xsd</File>
    <File>pcg-20251231_cal.xml</File>
    <File>pcg-20251231_def.xml</File>
    <File>pcg-20251231_lab.xml</File>
    <File>pcg-20251231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>pcg-20251231_g1.jpg</File>
    <File>pcg-20251231_g2.jpg</File>
    <File>pcg-20251231_g3.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="2603">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="15">http://xbrl.sec.gov/cyd/2025</BaseTaxonomy>
    <BaseTaxonomy items="91">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="42">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
