<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>2.2.0.25</Version>
  <ReportType />
  <MyReports>
    <Report>
      <IsDefault>true</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>000500 - Document - DOCUMENT AND ENTITY INFORMATION</LongName>
      <ShortName>DOCUMENT AND ENTITY INFORMATION</ShortName>
      <Role>http://www.sempra.com/role/DocumentDOCUMENTANDENTITYINFORMATION</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R1.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>001000 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <Role>http://www.sempra.com/role/StatementCONDENSEDCONSOLIDATEDBALANCESHEETS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R2.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>001500 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals)</LongName>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals)</ShortName>
      <Role>http://www.sempra.com/role/StatementCONDENSEDCONSOLIDATEDBALANCESHEETSParentheticals</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R3.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>002000 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <Role>http://www.sempra.com/role/StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R4.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>003000 - Statement - CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS</LongName>
      <ShortName>CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS</ShortName>
      <Role>http://www.sempra.com/role/StatementCONDENSEDSTATEMENTSOFCONSOLIDATEDCASHFLOWS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R5.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010100 - Disclosure - GENERAL</LongName>
      <ShortName>GENERAL</ShortName>
      <Role>http://www.sempra.com/role/DisclosureGENERAL</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R6.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010200 - Disclosure - NEW ACCOUNTING STANDARDS</LongName>
      <ShortName>NEW ACCOUNTING STANDARDS</ShortName>
      <Role>http://www.sempra.com/role/DisclosureNEWACCOUNTINGSTANDARDS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R7.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010300 - Disclosure - RECENT INVESTMENT ACTIVITY</LongName>
      <ShortName>RECENT INVESTMENT ACTIVITY</ShortName>
      <Role>http://www.sempra.com/role/DisclosureRECENTINVESTMENTACTIVITY</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R8.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES</LongName>
      <ShortName>INVESTMENTS IN UNCONSOLIDATED ENTITIES</ShortName>
      <Role>http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIES</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R9.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010500 - Disclosure - OTHER FINANCIAL DATA</LongName>
      <ShortName>OTHER FINANCIAL DATA</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATA</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R10.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010600 - Disclosure - DEBT AND CREDIT FACILITIES</LongName>
      <ShortName>DEBT AND CREDIT FACILITIES</ShortName>
      <Role>http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIES</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R11.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010700 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS</LongName>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS</ShortName>
      <Role>http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R12.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010800 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <Role>http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R13.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>010900 - Disclosure - SEMPRA UTILITIES' REGULATORY MATTERS</LongName>
      <ShortName>SEMPRA UTILITIES' REGULATORY MATTERS</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSEMPRAUTILITIESREGULATORYMATTERS</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R14.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>011000 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <Role>http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIES</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R15.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>011100 - Disclosure - SEGMENT INFORMATION</LongName>
      <ShortName>SEGMENT INFORMATION</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSEGMENTINFORMATION</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R16.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>011200 - Disclosure - SUBSEQUENT EVENT</LongName>
      <ShortName>SUBSEQUENT EVENT</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSUBSEQUENTEVENT</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R17.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>020000 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSIGNIFICANTACCOUNTINGPOLICIESPolicies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R18.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>030500 - Disclosure - OTHER FINANCIAL DATA (Tables)</LongName>
      <ShortName>OTHER FINANCIAL DATA (Tables)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATATables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R19.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>030700 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</LongName>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R20.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>030800 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTSTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R21.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>031100 - Disclosure - SEGMENT INFORMATION (Tables)</LongName>
      <ShortName>SEGMENT INFORMATION (Tables)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSEGMENTINFORMATIONTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R22.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040300 - Disclosure - RECENT INVESTMENT ACTIVITY (Details)</LongName>
      <ShortName>RECENT INVESTMENT ACTIVITY (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureRECENTINVESTMENTACTIVITYDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R23.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details)</LongName>
      <ShortName>INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIESDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R24.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040505 - Disclosure - OTHER FINANCIAL DATA - VARIABLE INTEREST ENTITIES (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - VARIABLE INTEREST ENTITIES (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAVARIABLEINTERESTENTITIESDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R25.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040510 - Disclosure - OTHER FINANCIAL DATA - PENSION AND OTHER POSTRETIREMENT BENEFITS (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - PENSION AND OTHER POSTRETIREMENT BENEFITS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAPENSIONANDOTHERPOSTRETIREMENTBENEFITSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R26.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040515 - Disclosure - OTHER FINANCIAL DATA - EARNINGS PER SHARE (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - EARNINGS PER SHARE (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAEARNINGSPERSHAREDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R27.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040520 - Disclosure - OTHER FINANCIAL DATA - COMMON STOCK REPURCHASE PROGRAM (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - COMMON STOCK REPURCHASE PROGRAM (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATACOMMONSTOCKREPURCHASEPROGRAMDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R28.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040525 - Disclosure - OTHER FINANCIAL DATA - SHARE-BASED COMPENSATION (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - SHARE-BASED COMPENSATION (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATASHAREBASEDCOMPENSATIONDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R29.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040530 - Disclosure - OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATACAPITALIZEDFINANCINGCOSTSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R30.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040535 - Disclosure - OTHER FINANCIAL DATA - COMPREHENSIVE INCOME AND EQUITY (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - COMPREHENSIVE INCOME AND EQUITY (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATACOMPREHENSIVEINCOMEANDEQUITYDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R31.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040540 - Disclosure - OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILIATES (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATATRANSACTIONSWITHAFFILIATESDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R32.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040545 - Disclosure - OTHER FINANCIAL DATA - OTHER INCOME (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - OTHER INCOME (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAOTHERINCOMEDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R33.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040550 - Disclosure - OTHER FINANCIAL DATA - INCOME TAXES (Details)</LongName>
      <ShortName>OTHER FINANCIAL DATA - INCOME TAXES (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAINCOMETAXESDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R34.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040600 - Disclosure - DEBT AND CREDIT FACILITIES (Details)</LongName>
      <ShortName>DEBT AND CREDIT FACILITIES (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIESDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R35.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040700 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details)</LongName>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R36.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040800 - Disclosure - FAIR VALUE MEASUREMENTS (Details)</LongName>
      <ShortName>FAIR VALUE MEASUREMENTS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R37.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>040900 - Disclosure - SEMPRA UTILITIES' REGULATORY MATTERS (Details)</LongName>
      <ShortName>SEMPRA UTILITIES' REGULATORY MATTERS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSEMPRAUTILITIESREGULATORYMATTERSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R38.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>041000 - Disclosure - COMMITMENTS AND CONTINGENCIES - LEGAL PROCEEDINGS (Details)</LongName>
      <ShortName>COMMITMENTS AND CONTINGENCIES - LEGAL PROCEEDINGS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESLEGALPROCEEDINGSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R39.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>041010 - Disclosure - COMMITMENTS AND CONTINGENCIES - NUCLEAR INSURANCE (Details)</LongName>
      <ShortName>COMMITMENTS AND CONTINGENCIES - NUCLEAR INSURANCE (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESNUCLEARINSURANCEDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R40.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>041020 - Disclosure - COMMITMENTS AND CONTINGENCIES - CONTRACTUAL COMMITMENTS (Details)</LongName>
      <ShortName>COMMITMENTS AND CONTINGENCIES - CONTRACTUAL COMMITMENTS (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESCONTRACTUALCOMMITMENTSDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R41.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>041100 - Disclosure - SEGMENT INFORMATION (Details)</LongName>
      <ShortName>SEGMENT INFORMATION (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSEGMENTINFORMATIONDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R42.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>041200 - Disclosure - SUBSEQUENT EVENT (Details)</LongName>
      <ShortName>SUBSEQUENT EVENT (Details)</ShortName>
      <Role>http://www.sempra.com/role/DisclosureSUBSEQUENTEVENTDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R43.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Book</ReportType>
      <LongName>All Reports</LongName>
      <ShortName>All Reports</ShortName>
      <Role />
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName />
    </Report>
  </MyReports>
  <EntityCount>1</EntityCount>
  <ContextCount>314</ContextCount>
  <SegmentCount>91</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <UnitCount>3</UnitCount>
  <ElementCount>420</ElementCount>
  <FootnotesReported>true</FootnotesReported>
  <TuplesReported>false</TuplesReported>
  <ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentLiabilitiesMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SoCalGasSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_BusinessAcquisitionAxis_ChilquintaEnergiaAndLuzDelSurMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraLNGSegmentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_ElectricDistributionAdvancedMeteringAndGenerationInfrastructureMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentSDGEMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Apr30_2011_us-gaap_BusinessAcquisitionAxis_ChilquintaEnergiaMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherOperationAndMaintenanceMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Apr01_2010_TO_Apr30_2010_us-gaap_BusinessAcquisitionAxis_MexicanPipelineAndNaturalGasInfrastructureMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_OtherDebtSecuritiesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>14</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>49</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySempraGlobalMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_USStatesAndPoliticalSubdivisionsMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraLNGSegmentMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySoCalGasMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member</ContextName>
      <ElementCount>9</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_ElectricDistributionAdvancedMeteringAndGenerationInfrastructureMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentOtherAffiliatesMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySempraUtilitiesCombinedMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>35</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_FairValueAdjustmentsOnHedgesAndDerivativeContractsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_EquitySecuritiesMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_DebtSecuritiesMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_BusinessAcquisitionAxis_MexicanPipelineAndNaturalGasInfrastructureMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_IntersegmentRevenuesSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherOperationAndMaintenanceMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DebtInstrumentAxis_OtherLongTermDebtFloatingRateDue2014Member_dei_LegalEntityAxis_ParentCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_EquityEarningsNetOfIncomeTaxMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SoCalGasSegmentMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>34</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentAssetsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_SunrisePowerlinkConstructionMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SoCalGasSegmentMember</ContextName>
      <ElementCount>11</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member</ContextName>
      <ElementCount>9</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_GainLossOnInvestmentsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010</ContextName>
      <ElementCount>99</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LossContingenciesByNatureOfContingencyAxis_LibertyGasStorageLitigationMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_sre_ScheduleOfPerformanceBasedRestrictedSharesAxis_RestrictedStockUnitsMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentAssetsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>59</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Apr30_2011_us-gaap_BusinessAcquisitionAxis_ChilquintaEnergiaAndLuzDelSurMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Dec31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsdiaryOfCommonParentSoCalGasMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jul01_2010_TO_Sep30_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_PurchasedPowerContractsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_GainLossOnInvestmentsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LossContingenciesByNatureOfContingencyAxis_LossFromCatastrophesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_AllOtherSegmentsMember</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_FowlerRidgeIIWindFarmMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_NaturalGasContractsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_GainsLossesOnInterestRateAndForeignExchangeInstrumentsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraLNGSegmentMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_AllOtherSegmentsMember</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Dec31_2010_us-gaap_LossContingenciesByNatureOfContingencyAxis_LossFromCatastrophesMember_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_OutOfTheMoneyStockOptionsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_AllOtherSegmentsMember</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Oct01_2010_TO_Dec31_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Sep30_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_CashAndCashEquivalentsMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsdiaryOfCommonParentSoCalGasMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentSDGEMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Apr30_2011_us-gaap_BusinessAcquisitionAxis_LuzDelSurMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_sre_ScheduleOfPerformanceBasedRestrictedSharesAxis_RestrictedStockAwardsMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_OtherDebtSecuritiesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraGenerationSegmentMember</ContextName>
      <ElementCount>14</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_sre_UtilityProjectsByProjectNameAxis_WindFarmProjectMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_IntercompanyEliminationsSegmentMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_PurchasedPowerContractsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_sre_JointVentureSalesOfBusinessesBySaleAxis_RbsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_BusinessAcquisitionAxis_ChilquintaEnergiaAndLuzDelSurMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_USStatesAndPoliticalSubdivisionsMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>12</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_FowlerRidgeIIWindFarmMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentOtherAffiliatesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_EquityEarningsBeforeIncomeTaxMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentLiabilitiesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraPipelinesAndStorageSegmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel3Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraPipelinesAndStorageSegmentMember</ContextName>
      <ElementCount>15</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySempraEnergyConsolidatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentOtherAffiliatesMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraPipelinesAndStorageSegmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySempraEnergyMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraGenerationSegmentMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_USTreasuryAndGovernmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>77</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentLiabilitiesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>36</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel3Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_sre_ScheduleOfPerformanceBasedRestrictedSharesAxis_RestrictedStockAwardsMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LossContingenciesByNatureOfContingencyAxis_LossFromCatastrophesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_NaturalGasInfrastructureConstructionMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraLNGSegmentMember</ContextName>
      <ElementCount>10</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>101</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_IntercompanyEliminationsSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>50</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Dec31_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_StockOptionsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LossContingenciesByNatureOfContingencyAxis_LossFromCatastrophesMember_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>44</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011</ContextName>
      <ElementCount>115</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011</ContextName>
      <ElementCount>161</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_sre_JointVentureSalesOfBusinessesBySaleAxis_ParentCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_USTreasuryAndGovernmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentOtherAffiliatesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_GainsLossesOnInterestRateAndForeignExchangeInstrumentsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Dec31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_StatementEquityComponentsAxis_ParentMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_DebtSecuritiesMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Apr30_2010_us-gaap_BusinessAcquisitionAxis_MexicanPipelineAndNaturalGasInfrastructureMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_MajorityShareholderMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_IntersegmentRevenuesSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_AllOtherSegmentsMember</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_RegulatoryInterestNetMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Apr30_2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_NuclearFuelFabricationMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_CashFlowHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_ContingentlyIssuableSharesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Apr01_2011_TO_Apr30_2011</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentAssetsMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraPipelinesAndStorageSegmentMember</ContextName>
      <ElementCount>15</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySDGEMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_IntersegmentReceivablesSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentLiabilitiesMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentAssetsMember</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesNoncurrentLiabilitiesMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateAndForeignExchangeInstrumentsMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_InterestExpenseMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SDGESegmentMember</ContextName>
      <ElementCount>11</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_NaturalGasInfrastructureConstructionMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_PensionPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_StockOptionsMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel2Member</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraLNGSegmentMember</ContextName>
      <ElementCount>12</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DebtInstrumentAxis_OtherLongTermDebtFixedRateDue2014Member_dei_LegalEntityAxis_ParentCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DerivativesFairValueByBalanceSheetLocationAxis_FixedPriceContractsAndOtherDerivativesCurrentAssetsMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>51</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentSDGEMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentOtherAffiliatesMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_LineOfCreditFacilityAxis_LineOfCreditFacilitySempraEnergyConsolidatedMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_SegmentReportingInformationBySegmentAxis_SempraGenerationSegmentMember</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel3Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2009</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_RegulatoryInterestNetMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherOperationAndMaintenanceMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_CashAndCashEquivalentsMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>52</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_IntersegmentReceivablesSegmentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_SunrisePowerlinkConstructionMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010</ContextName>
      <ElementCount>97</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CarryingReportedAmountFairValueDisclosureMember_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_ScheduleOfAvailableForSaleSecuritiesMajorTypesOfDebtAndEquitySecuritiesAxis_EquitySecuritiesMember</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>12</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_EstimateOfFairValueFairValueDisclosureMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>55</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_AllowanceForCostOfEquityFundsUsedDuringConstructionMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel3Member_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_us-gaap_StatementEquityComponentsAxis_NoncontrollingInterestMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_NuclearFuelFabricationMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_RevenuesSempraGlobalAndParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_FairValueHedgingMember_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateContractMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_dei_LegalEntityAxis_PacificEnterprisesMember_us-gaap_StatementEquityComponentsAxis_ParentMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_ComponentOfOtherIncomeNonoperatingAxis_OtherIncomeSundryMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SoCalGasSegmentMember</ContextName>
      <ElementCount>13</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_RevenuesSempraGlobalAndParentMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_SubsidiaryOfCommonParentSDGEMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueAssetsMeasuredOnRecurringBasisDisclosureItemsAxis_FairValueInputsLevel1Member</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_SegmentReportingInformationBySegmentAxis_SempraGenerationSegmentMember</ContextName>
      <ElementCount>13</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_sre_ScheduleOfPerformanceBasedRestrictedSharesAxis_RestrictedStockUnitsMember</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Dec31_2010_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis_CollateralNettedMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SouthernCaliforniaGasCompanyMember</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2011_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_OtherPostretirementBenefitPlansDefinedBenefitMember_dei_LegalEntityAxis_SanDiegoGasAndElectricCompanyAndSubsidiaryMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>AS_OF_Mar31_2010_dei_LegalEntityAxis_PacificEnterprisesMember</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2010_TO_Mar31_2010_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_CommodityContractsSubjectToRateRecoveryMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_CostOfNaturalGasElectricFuelAndPurchasedPowerMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>FROM_Jan01_2011_TO_Mar31_2011_us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis_InterestRateAndForeignExchangeInstrumentsMember_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_NondesignatedMember_us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis_OtherIncomeMember</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
  </ContextSummary>
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
