2.4.0.6 Html 1523 1140 1 true 413 0 false 5 false false R1.htm 000500 - Document - DOCUMENT AND ENTITY INFORMATION Sheet http://www.sempra.com/role/DocumentDOCUMENTANDENTITYINFORMATION DOCUMENT AND ENTITY INFORMATION true false R2.htm 001000 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.sempra.com/role/StatementCONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS false false R3.htm 001500 - Statement - CONSOLIDATED BALANCE SHEETS (Parentheticals) Sheet http://www.sempra.com/role/StatementCONSOLIDATEDBALANCESHEETSParentheticals CONSOLIDATED BALANCE SHEETS (Parentheticals) false false R4.htm 002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS Sheet http://www.sempra.com/role/StatementCONSOLIDATEDSTATEMENTSOFOPERATIONS CONSOLIDATED STATEMENTS OF OPERATIONS false false R5.htm 002010 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Sheet http://www.sempra.com/role/StatementCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME false false R6.htm 003000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.sempra.com/role/StatementCONSOLIDATEDSTATEMENTSOFCASHFLOWS CONSOLIDATED STATEMENTS OF CASH FLOWS false false R7.htm 004000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME AND CHANGES IN EQUITY Sheet http://www.sempra.com/role/StatementCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEANDCHANGESINEQUITY CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME AND CHANGES IN EQUITY false false R8.htm 010100 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA Sheet http://www.sempra.com/role/DisclosureSIGNIFICANTACCOUNTINGPOLICIESANDOTHERFINANCIALDATA SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA false false R9.htm 010200 - Disclosure - NEW ACCOUNTING STANDARDS Sheet http://www.sempra.com/role/DisclosureNEWACCOUNTINGSTANDARDS NEW ACCOUNTING STANDARDS false false R10.htm 010300 - Disclosure - RECENT INVESTMENT ACTIVITY Sheet http://www.sempra.com/role/DisclosureRECENTINVESTMENTACTIVITY RECENT INVESTMENT ACTIVITY false false R11.htm 010400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES Sheet http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIES INVESTMENTS IN UNCONSOLIDATED ENTITIES false false R12.htm 010500 - Disclosure - DEBT AND CREDIT FACILITIES Sheet http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIES DEBT AND CREDIT FACILITIES false false R13.htm 010600 - Disclosure - FACILITIES UNDER JOINT OWNERSHIP Sheet http://www.sempra.com/role/DisclosureFACILITIESUNDERJOINTOWNERSHIP FACILITIES UNDER JOINT OWNERSHIP false false R14.htm 010700 - Disclosure - INCOME TAXES Sheet http://www.sempra.com/role/DisclosureINCOMETAXES INCOME TAXES false false R15.htm 010800 - Disclosure - EMPLOYEE BENEFIT PLANS Sheet http://www.sempra.com/role/DisclosureEMPLOYEEBENEFITPLANS EMPLOYEE BENEFIT PLANS false false R16.htm 010900 - Disclosure - SHARE-BASED COMPENSATION Sheet http://www.sempra.com/role/DisclosureSHAREBASEDCOMPENSATION SHARE-BASED COMPENSATION false false R17.htm 011000 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS DERIVATIVE FINANCIAL INSTRUMENTS false false R18.htm 011100 - Disclosure - FAIR VALUE MEASUREMENTS Sheet http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTS FAIR VALUE MEASUREMENTS false false R19.htm 011200 - Disclosure - PREFERRED STOCK Sheet http://www.sempra.com/role/DisclosurePREFERREDSTOCK PREFERRED STOCK false false R20.htm 011300 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE Sheet http://www.sempra.com/role/DisclosureSHAREHOLDERSEQUITYANDEARNINGSPERSHARE SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE false false R21.htm 011500 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS Sheet http://www.sempra.com/role/DisclosureCALIFORNIAUTILITIESREGULATORYMATTERS CALIFORNIA UTILITIES' REGULATORY MATTERS false false R22.htm 011600 - Disclosure - COMMITMENTS AND CONTINGENCIES Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIES COMMITMENTS AND CONTINGENCIES false false R23.htm 011700 - Disclosure - SEGMENT INFORMATION Sheet http://www.sempra.com/role/DisclosureSEGMENTINFORMATION SEGMENT INFORMATION false false R24.htm 011800 - Disclosure - QUARTERLY FINANCIAL DATA Sheet http://www.sempra.com/role/DisclosureQUARTERLYFINANCIALDATA QUARTERLY FINANCIAL DATA false false R25.htm 011900 - Disclosure - SUBSEQUENT EVENT Sheet http://www.sempra.com/role/DisclosureSUBSEQUENTEVENT SUBSEQUENT EVENT false false R26.htm 015000 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENT SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT false false R27.htm 020100 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Policies) Sheet http://www.sempra.com/role/DisclosureSIGNIFICANTACCOUNTINGPOLICIESANDOTHERFINANCIALDATAPolicies SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Policies) false false R28.htm 020400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES (Policies) Sheet http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIESPolicies INVESTMENTS IN UNCONSOLIDATED ENTITIES (Policies) false false R29.htm 020800 - Disclosure - EMPLOYEE BENEFIT PLANS (Policies) Sheet http://www.sempra.com/role/DisclosureEMPLOYEEBENEFITPLANSPolicies EMPLOYEE BENEFIT PLANS (Policies) false false R30.htm 020900 - Disclosure - SHARE-BASED COMPENSATION (Policies) Sheet http://www.sempra.com/role/DisclosureSHAREBASEDCOMPENSATIONPolicies SHARE-BASED COMPENSATION (Policies) false false R31.htm 021000 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Policies) Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSPolicies DERIVATIVE FINANCIAL INSTRUMENTS (Policies) false false R32.htm 021300 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Policies) Sheet http://www.sempra.com/role/DisclosureSHAREHOLDERSEQUITYANDEARNINGSPERSHAREPolicies SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Policies) false false R33.htm 021600 - Disclosure - COMMITMENTS AND CONTINGENCIES (Policies) Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESPolicies COMMITMENTS AND CONTINGENCIES (Policies) false false R34.htm 030100 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Tables) Sheet http://www.sempra.com/role/DisclosureSIGNIFICANTACCOUNTINGPOLICIESANDOTHERFINANCIALDATATables SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Tables) false false R35.htm 030300 - Disclosure - RECENT INVESTMENT ACTIVITY (Tables) Sheet http://www.sempra.com/role/DisclosureRECENTINVESTMENTACTIVITYTables RECENT INVESTMENT ACTIVITY (Tables) false false R36.htm 030400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES (Tables) Sheet http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIESTables INVESTMENTS IN UNCONSOLIDATED ENTITIES (Tables) false false R37.htm 030500 - Disclosure - DEBT AND CREDIT FACILITIES (Tables) Sheet http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIESTables DEBT AND CREDIT FACILITIES (Tables) false false R38.htm 030600 - Disclosure - FACILITIES UNDER JOINT OWNERSHIP (Tables) Sheet http://www.sempra.com/role/DisclosureFACILITIESUNDERJOINTOWNERSHIPTables FACILITIES UNDER JOINT OWNERSHIP (Tables) false false R39.htm 030700 - Disclosure - INCOME TAXES (Tables) Sheet http://www.sempra.com/role/DisclosureINCOMETAXESTables INCOME TAXES (Tables) false false R40.htm 030800 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables) Sheet http://www.sempra.com/role/DisclosureEMPLOYEEBENEFITPLANSTables EMPLOYEE BENEFIT PLANS (Tables) false false R41.htm 030900 - Disclosure - SHARE-BASED COMPENSATION (Tables) Sheet http://www.sempra.com/role/DisclosureSHAREBASEDCOMPENSATIONTables SHARE-BASED COMPENSATION (Tables) false false R42.htm 031000 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables) Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSTables DERIVATIVE FINANCIAL INSTRUMENTS (Tables) false false R43.htm 031100 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) Sheet http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTSTables FAIR VALUE MEASUREMENTS (Tables) false false R44.htm 031200 - Disclosure - PREFERRED STOCK (Tables) Sheet http://www.sempra.com/role/DisclosurePREFERREDSTOCKTables PREFERRED STOCK (Tables) false false R45.htm 031300 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Tables) Sheet http://www.sempra.com/role/DisclosureSHAREHOLDERSEQUITYANDEARNINGSPERSHARETables SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Tables) false false R46.htm 031500 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS (Tables) Sheet http://www.sempra.com/role/DisclosureCALIFORNIAUTILITIESREGULATORYMATTERSTables CALIFORNIA UTILITIES' REGULATORY MATTERS (Tables) false false R47.htm 031600 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESTables COMMITMENTS AND CONTINGENCIES (Tables) false false R48.htm 031700 - Disclosure - SEGMENT INFORMATION (Tables) Sheet http://www.sempra.com/role/DisclosureSEGMENTINFORMATIONTables SEGMENT INFORMATION (Tables) false false R49.htm 031800 - Disclosure - QUARTERLY FINANCIAL DATA (Tables) Sheet http://www.sempra.com/role/DisclosureQUARTERLYFINANCIALDATATables QUARTERLY FINANCIAL DATA (Tables) false false R50.htm 031900 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT (Tables) Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTTables SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT (Tables) false false R51.htm 040055 - Disclosure - OTHER FINANCIAL DATA - RESTRICTED CASH (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATARESTRICTEDCASHDetails OTHER FINANCIAL DATA - RESTRICTED CASH (Details) false false R52.htm 040060 - Disclosure - OTHER FINANCIAL DATA - INVENTORY (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAINVENTORYDetails OTHER FINANCIAL DATA - INVENTORY (Details) false false R53.htm 040065 - Disclosure - OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILATIES (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATATRANSACTIONSWITHAFFILATIESDetails OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILATIES (Details) false false R54.htm 040066 - Disclosure - OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILATIES 2 (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATATRANSACTIONSWITHAFFILATIES2Details OTHER FINANCIAL DATA - TRANSACTIONS WITH AFFILATIES 2 (Details) false false R55.htm 040100 - Disclosure - OTHER FINANCIAL DATA - VARIABLE INTEREST ENTITY (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAVARIABLEINTERESTENTITYDetails OTHER FINANCIAL DATA - VARIABLE INTEREST ENTITY (Details) false false R56.htm 040200 - Disclosure - OTHER FINANCIAL DATA - OWNERSHIP INTEREST (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAOWNERSHIPINTERESTDetails OTHER FINANCIAL DATA - OWNERSHIP INTEREST (Details) false false R57.htm 040220 - Disclosure - OTHER FINANCIAL DATA - OTHER INCOME (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAOTHERINCOMEDetails OTHER FINANCIAL DATA - OTHER INCOME (Details) false false R58.htm 040225 - Disclosure - OTHER FINANCIAL DATA - REGULATORY MATTERS (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAREGULATORYMATTERSDetails OTHER FINANCIAL DATA - REGULATORY MATTERS (Details) false false R59.htm 040226 - Disclosure - OTHER FINANCIAL DATA - REGULATORY MATTERS 2 (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAREGULATORYMATTERS2Details OTHER FINANCIAL DATA - REGULATORY MATTERS 2 (Details) false false R60.htm 040227 - Disclosure - OTHER FINANCIAL DATA - REGULATORY MATTERS 3 (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAREGULATORYMATTERS3Details OTHER FINANCIAL DATA - REGULATORY MATTERS 3 (Details) false false R61.htm 040230 - Disclosure - OTHER FINANCIAL DATA - DIVIDENDS AND LOANS (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATADIVIDENDSANDLOANSDetails OTHER FINANCIAL DATA - DIVIDENDS AND LOANS (Details) false false R62.htm 040235 - Disclosure - OTHER FINANCIAL DATA - DIVIDENDS AND LOANS 2 (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATADIVIDENDSANDLOANS2Details OTHER FINANCIAL DATA - DIVIDENDS AND LOANS 2 (Details) false false R63.htm 040240 - Disclosure - OTHER FINANCIAL DATA - FOREIGN CURRENCY TRANSLATION (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAFOREIGNCURRENCYTRANSLATIONDetails OTHER FINANCIAL DATA - FOREIGN CURRENCY TRANSLATION (Details) false false R64.htm 040250 - Disclosure - OTHER FINANCIAL DATA - REVENUES DISCLOSURE (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAREVENUESDISCLOSUREDetails OTHER FINANCIAL DATA - REVENUES DISCLOSURE (Details) false false R65.htm 040260 - Disclosure - OTHER FINANCIAL DATA - ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAACCUMULATEDOTHERCOMPREHENSIVEINCOMEDetails OTHER FINANCIAL DATA - ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) false false R66.htm 040265 - Disclosure - OTHER FINANCIAL DATA - COLLECTION ALLOWANCES (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATACOLLECTIONALLOWANCESDetails OTHER FINANCIAL DATA - COLLECTION ALLOWANCES (Details) false false R67.htm 040270 - Disclosure - OTHER FINANCIAL DATA - ASSET RETIREMENT OBLIGATIONS (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAASSETRETIREMENTOBLIGATIONSDetails OTHER FINANCIAL DATA - ASSET RETIREMENT OBLIGATIONS (Details) false false R68.htm 040280 - Disclosure - OTHER FINANCIAL DATA - OTHER INTANGIBLE ASSETS (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAOTHERINTANGIBLEASSETSDetails OTHER FINANCIAL DATA - OTHER INTANGIBLE ASSETS (Details) false false R69.htm 040285 - Disclosure - OTHER FINANCIAL DATA - GOODWILL (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAGOODWILLDetails OTHER FINANCIAL DATA - GOODWILL (Details) false false R70.htm 040290 - Disclosure - OTHER FINANCIAL DATA - ASSETS HELD FOR SALE (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAASSETSHELDFORSALEDetails OTHER FINANCIAL DATA - ASSETS HELD FOR SALE (Details) false false R71.htm 040295 - Disclosure - OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAPROPERTYPLANTANDEQUIPMENTDetails OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT (Details) false false R72.htm 040297 - Disclosure - OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT 2 (Details) Sheet http://www.sempra.com/role/OTHERFINANCIALDATAPROPERTYPLANTANDEQUIPMENT2Details OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT 2 (Details) false false R73.htm 040298 - Disclosure - OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT 3 (Details) Sheet http://www.sempra.com/role/DisclosureOTHERFINANCIALDATAPROPERTYPLANTANDEQUIPMENT3Details OTHER FINANCIAL DATA - PROPERTY, PLANT, AND EQUIPMENT 3 (Details) false false R74.htm 040300 - Disclosure - RECENT INVESTMENT ACTIVITY (Details) Sheet http://www.sempra.com/role/DisclosureRECENTINVESTMENTACTIVITYDetails RECENT INVESTMENT ACTIVITY (Details) false false R75.htm 040400 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details) Sheet http://www.sempra.com/role/DisclosureINVESTMENTSINUNCONSOLIDATEDENTITIESDetails INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details) false false R76.htm 040410 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES 2 (Details) Sheet http://www.sempra.com/role/INVESTMENTSINUNCONSOLIDATEDENTITIES2Details INVESTMENTS IN UNCONSOLIDATED ENTITIES 2 (Details) false false R77.htm 040500 - Disclosure - DEBT AND CREDIT FACILITIES (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIESDetails DEBT AND CREDIT FACILITIES (Details) false false R78.htm 040510 - Disclosure - DEBT AND CREDIT FACILITIES 2 (Details) Sheet http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIES2Details DEBT AND CREDIT FACILITIES 2 (Details) false false R79.htm 040520 - Disclosure - DEBT AND CREDIT FACILITIES 3 (Details) Sheet http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIES3Details DEBT AND CREDIT FACILITIES 3 (Details) false false R80.htm 040530 - Disclosure - DEBT AND CREDIT FACILITIES 4 (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIES4Details DEBT AND CREDIT FACILITIES 4 (Details) false false R81.htm 040540 - Disclosure - DEBT AND CREDIT FACILITIES 5 (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIES5Details DEBT AND CREDIT FACILITIES 5 (Details) false false R82.htm 040560 - Disclosure - DEBT AND CREDIT FACILITIES 6 (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIES6Details DEBT AND CREDIT FACILITIES 6 (Details) false false R83.htm 040570 - Disclosure - DEBT AND CREDIT FACILITIES 7 (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIES7Details DEBT AND CREDIT FACILITIES 7 (Details) false false R84.htm 040580 - Disclosure - DEBT AND CREDIT FACILITIES 8 (Details) Sheet http://www.sempra.com/role/DEBTANDCREDITFACILITIES8Details DEBT AND CREDIT FACILITIES 8 (Details) false false R85.htm 040590 - Disclosure - DEBT AND CREDIT FACILITIES 9 (Details) Sheet http://www.sempra.com/role/DisclosureDEBTANDCREDITFACILITIES9Details DEBT AND CREDIT FACILITIES 9 (Details) false false R86.htm 040600 - Disclosure - FACILITIES UNDER JOINT OWNERSHIP (Details) Sheet http://www.sempra.com/role/DisclosureFACILITIESUNDERJOINTOWNERSHIPDetails FACILITIES UNDER JOINT OWNERSHIP (Details) false false R87.htm 040610 - Disclosure - FACILITIES UNDER JOINT OWNERSHIP 2 (Details) Sheet http://www.sempra.com/role/DisclosureFACILITIESUNDERJOINTOWNERSHIP2Details FACILITIES UNDER JOINT OWNERSHIP 2 (Details) false false R88.htm 040700 - Disclosure - INCOME TAXES (Details) Sheet http://www.sempra.com/role/DisclosureINCOMETAXESDetails INCOME TAXES (Details) false false R89.htm 040710 - Disclosure - INCOME TAXES 2 (Details) Sheet http://www.sempra.com/role/INCOMETAXES2Details INCOME TAXES 2 (Details) false false R90.htm 040720 - Disclosure - INCOME TAXES 3 (Details) Sheet http://www.sempra.com/role/INCOMETAXES3Details INCOME TAXES 3 (Details) false false R91.htm 040730 - Disclosure - INCOME TAXES 4 (Details) Sheet http://www.sempra.com/role/INCOMETAXES4Details INCOME TAXES 4 (Details) false false R92.htm 040740 - Disclosure - INCOME TAXES 5 (Details) Sheet http://www.sempra.com/role/DisclosureINCOMETAXES5Details INCOME TAXES 5 (Details) false false R93.htm 040750 - Disclosure - INCOME TAXES 6 (Details) Sheet http://www.sempra.com/role/INCOMETAXES6Details INCOME TAXES 6 (Details) false false R94.htm 040760 - Disclosure - INCOME TAXES 7 (Details) Sheet http://www.sempra.com/role/INCOMETAXES7Details INCOME TAXES 7 (Details) false false R95.htm 040800 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) Sheet http://www.sempra.com/role/DisclosureEMPLOYEEBENEFITPLANSDetails EMPLOYEE BENEFIT PLANS (Details) false false R96.htm 040830 - Disclosure - EMPLOYEE BENEFIT PLANS PART 2 (Details) Sheet http://www.sempra.com/role/EMPLOYEEBENEFITPLANSPART2Details EMPLOYEE BENEFIT PLANS PART 2 (Details) false false R97.htm 040845 - Disclosure - EMPLOYEE BENEFIT PLANS PART 3 (Details) Sheet http://www.sempra.com/role/EMPLOYEEBENEFITPLANSPART3Details EMPLOYEE BENEFIT PLANS PART 3 (Details) false false R98.htm 040860 - Disclosure - EMPLOYEE BENEFIT PLANS PART 4 (Details) Sheet http://www.sempra.com/role/EMPLOYEEBENEFITPLANSPART4Details EMPLOYEE BENEFIT PLANS PART 4 (Details) false false R99.htm 040870 - Disclosure - EMPLOYEE BENEFIT PLANS PART 5 (Details) Sheet http://www.sempra.com/role/DisclosureEMPLOYEEBENEFITPLANSPART5Details EMPLOYEE BENEFIT PLANS PART 5 (Details) false false R100.htm 040900 - Disclosure - SHARE-BASED COMPENSATION (Details) Sheet http://www.sempra.com/role/DisclosureSHAREBASEDCOMPENSATIONDetails SHARE-BASED COMPENSATION (Details) false false R101.htm 040910 - Disclosure - SHARE-BASED COMPENSATION 2 (Details) Sheet http://www.sempra.com/role/DisclosureSHAREBASEDCOMPENSATION2Details SHARE-BASED COMPENSATION 2 (Details) false false R102.htm 041000 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Details) Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSDetails DERIVATIVE FINANCIAL INSTRUMENTS (Details) false false R103.htm 041020 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 2 (Details) Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS2Details DERIVATIVE FINANCIAL INSTRUMENTS 2 (Details) false false R104.htm 041030 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 3 (Details) Sheet http://www.sempra.com/role/DERIVATIVEFINANCIALINSTRUMENTS3Details DERIVATIVE FINANCIAL INSTRUMENTS 3 (Details) false false R105.htm 041040 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 4 (Details) Sheet http://www.sempra.com/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS4Details DERIVATIVE FINANCIAL INSTRUMENTS 4 (Details) false false R106.htm 041050 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 5 (Details) Sheet http://www.sempra.com/role/DERIVATIVEFINANCIALINSTRUMENTS5Details DERIVATIVE FINANCIAL INSTRUMENTS 5 (Details) false false R107.htm 041070 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 6 (Details) Sheet http://www.sempra.com/role/DERIVATIVEFINANCIALINSTRUMENTS6Details DERIVATIVE FINANCIAL INSTRUMENTS 6 (Details) false false R108.htm 041080 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS 7 (Details) Sheet http://www.sempra.com/role/DERIVATIVEFINANCIALINSTRUMENTS7Details DERIVATIVE FINANCIAL INSTRUMENTS 7 (Details) false false R109.htm 041100 - Disclosure - FAIR VALUE MEASUREMENTS (Details) Sheet http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTSDetails FAIR VALUE MEASUREMENTS (Details) false false R110.htm 041120 - Disclosure - FAIR VALUE MEASUREMENTS 2 (Details) Sheet http://www.sempra.com/role/FAIRVALUEMEASUREMENTS2Details FAIR VALUE MEASUREMENTS 2 (Details) false false R111.htm 041130 - Disclosure - FAIR VALUE MEASUREMENTS 3 (Details) Sheet http://www.sempra.com/role/FAIRVALUEMEASUREMENTS3Details FAIR VALUE MEASUREMENTS 3 (Details) false false R112.htm 041140 - Disclosure - FAIR VALUE MEASUREMENTS 4 (Details) Sheet http://www.sempra.com/role/DisclosureFAIRVALUEMEASUREMENTS4Details FAIR VALUE MEASUREMENTS 4 (Details) false false R113.htm 041150 - Disclosure - FAIR VALUE MEASUREMENTS 5 (Details) Sheet http://www.sempra.com/role/FAIRVALUEMEASUREMENTS5Details FAIR VALUE MEASUREMENTS 5 (Details) false false R114.htm 041160 - Statement - FAIR VALUE MEASUREMENTS 6 (Details) Sheet http://www.sempra.com/role/StatementFAIRVALUEMEASUREMENTS6Details FAIR VALUE MEASUREMENTS 6 (Details) false false R115.htm 041200 - Disclosure - PREFERRED STOCK (Details) Sheet http://www.sempra.com/role/PREFERREDSTOCKDetails PREFERRED STOCK (Details) false false R116.htm 041220 - Disclosure - PREFERRED STOCK 2 (Details) Sheet http://www.sempra.com/role/DisclosurePREFERREDSTOCK2Details PREFERRED STOCK 2 (Details) false false R117.htm 041300 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHAREDetails SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE (Details) false false R118.htm 041310 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 2 (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHARE2Details SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 2 (Details) false false R119.htm 041320 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 3 (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHARE3Details SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 3 (Details) false false R120.htm 041330 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 4 (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHARE4Details SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 4 (Details) false false R121.htm 041340 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 5 (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHARE5Details SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 5 (Details) false false R122.htm 041350 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 6 (Details) Sheet http://www.sempra.com/role/SHAREHOLDERSEQUITYANDEARNINGSPERSHARE6Details SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 6 (Details) false false R123.htm 041480 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 1 (Details) Sheet http://www.sempra.com/role/CALIFORNIAUTILITIESREGULATORYMATTERSSCHEDULEOFREGULATORYAMOUNTS1Details CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 1 (Details) false false R124.htm 041500 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details) Sheet http://www.sempra.com/role/DisclosureCALIFORNIAUTILITIESREGULATORYMATTERSSCHEDULEOFREGULATORYAMOUNTS2Details CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details) false false R125.htm 041510 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS - UTILITY INCENTIVE AWARDS (Details) Sheet http://www.sempra.com/role/DisclosureCALIFORNIAUTILITIESREGULATORYMATTERSUTILITYINCENTIVEAWARDSDetails CALIFORNIA UTILITIES' REGULATORY MATTERS - UTILITY INCENTIVE AWARDS (Details) false false R126.htm 041515 - Disclosure - CALIFORNIA REGUALTORY MATTERS - SCHEDULE OF UTILITY PROJECTS (Details) Sheet http://www.sempra.com/role/CALIFORNIAREGUALTORYMATTERSSCHEDULEOFUTILITYPROJECTSDetails CALIFORNIA REGUALTORY MATTERS - SCHEDULE OF UTILITY PROJECTS (Details) false false R127.htm 041520 - Disclosure - CALIFORNIA REGULATORY MATTERS - NUCLEAR PLANT (Details) Sheet http://www.sempra.com/role/DisclosureCALIFORNIAREGULATORYMATTERSNUCLEARPLANTDetails CALIFORNIA REGULATORY MATTERS - NUCLEAR PLANT (Details) false false R128.htm 041600 - Disclosure - COMMITMENTS AND CONTINGENCIES - CAPITAL LEASES (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESCAPITALLEASESDetails COMMITMENTS AND CONTINGENCIES - CAPITAL LEASES (Details) false false R129.htm 041610 - Disclosure - COMMITMENTS AND CONTINGENCIES - LEGAL (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESLEGALDetails COMMITMENTS AND CONTINGENCIES - LEGAL (Details) false false R130.htm 041615 - Disclosure - COMMITMENTS AND CONTINGENCIES - LOSS ON CONTINGENCIES (Details) Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESLOSSONCONTINGENCIESDetails COMMITMENTS AND CONTINGENCIES - LOSS ON CONTINGENCIES (Details) false false R131.htm 041620 - Disclosure - COMMITMENTS AND CONTINGENCIES - LONG-TERM PURCHASE COMMITMENT (Details) Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESLONGTERMPURCHASECOMMITMENTDetails COMMITMENTS AND CONTINGENCIES - LONG-TERM PURCHASE COMMITMENT (Details) false false R132.htm 041625 - Disclosure - COMMITMENTS AND CONTINGENCIES - OPERATING LEASES (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESOPERATINGLEASESDetails COMMITMENTS AND CONTINGENCIES - OPERATING LEASES (Details) false false R133.htm 041630 - Disclosure - COMMITMENTS AND CONTINGENCIES - ENVIRONMENTAL ISSUES (Details) Sheet http://www.sempra.com/role/DisclosureCOMMITMENTSANDCONTINGENCIESENVIRONMENTALISSUESDetails COMMITMENTS AND CONTINGENCIES - ENVIRONMENTAL ISSUES (Details) false false R134.htm 041635 - Disclosure - COMMITMENTS AND CONTINGENCIES - SITE CONTINGENCY (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESSITECONTINGENCYDetails COMMITMENTS AND CONTINGENCIES - SITE CONTINGENCY (Details) false false R135.htm 041640 - Disclosure - COMMITMENTS AND CONTINGENCIES - SCHEDULE OF NUCLEAR INSURANCE (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESSCHEDULEOFNUCLEARINSURANCEDetails COMMITMENTS AND CONTINGENCIES - SCHEDULE OF NUCLEAR INSURANCE (Details) false false R136.htm 041650 - Disclosure - COMMITMENTS AND CONTINGENCIES - NUCLEAR FUEL DISPOSAL (Details) Sheet http://www.sempra.com/role/COMMITMENTSANDCONTINGENCIESNUCLEARFUELDISPOSALDetails COMMITMENTS AND CONTINGENCIES - NUCLEAR FUEL DISPOSAL (Details) false false R137.htm 041700 - Disclosure - SEGMENT INFORMATION (Details) Sheet http://www.sempra.com/role/DisclosureSEGMENTINFORMATIONDetails SEGMENT INFORMATION (Details) false false R138.htm 041705 - Disclosure - SEGMENT INFORMATION 2 (Details) Sheet http://www.sempra.com/role/SEGMENTINFORMATION2Details SEGMENT INFORMATION 2 (Details) false false R139.htm 041800 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (Details) Sheet http://www.sempra.com/role/DisclosureSELECTEDQUARTERLYFINANCIALDATADetails SELECTED QUARTERLY FINANCIAL DATA (Details) false false R140.htm 041810 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA 2 (Details) Sheet http://www.sempra.com/role/DisclosureSELECTEDQUARTERLYFINANCIALDATA2Details SELECTED QUARTERLY FINANCIAL DATA 2 (Details) false false R141.htm 041900 - Disclosure - SUBSEQUENT EVENT (Details) Sheet http://www.sempra.com/role/DisclosureSUBSEQUENTEVENTDetails SUBSEQUENT EVENT (Details) false false R142.htm 042000 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, STATEMENT OF OPERATIONS (Details) Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTSTATEMENTOFOPERATIONSDetails SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, STATEMENT OF OPERATIONS (Details) false false R143.htm 042010 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, STATEMENT OF COMPREHENSIVE INCOME (Details) Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTSTATEMENTOFCOMPREHENSIVEINCOMEDetails SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, STATEMENT OF COMPREHENSIVE INCOME (Details) false false R144.htm 042100 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, BALANCE SHEETS (Details) Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTBALANCESHEETSDetails SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, BALANCE SHEETS (Details) false false R145.htm 042200 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, CASH FLOWS (Details) Sheet http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTCASHFLOWSDetails SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, CASH FLOWS (Details) false false R146.htm 042300 - Disclosure - SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, FOOTNOTES (Details) Notes http://www.sempra.com/role/DisclosureSCHEDULEICONDENSEDFINANCIALINFORMATIONOFPARENTFOOTNOTESDetails SCHEDULE I, CONDENSED FINANCIAL INFORMATION OF PARENT, FOOTNOTES (Details) false false All Reports Book All Reports Element sre_AuthorizedReturnOnEquityPrevious had a mix of decimals attribute values: 3 4. Element sre_AuthorizedReturnOnEquityRequested had a mix of decimals attribute values: 2 3. Element sre_AuthorizedReturnOnRateBasePrevious had a mix of decimals attribute values: 3 4. Element sre_CostOfCapitalAuthorizedRateOfRecovery had a mix of decimals attribute values: 3 4. Element sre_CostOfCapitalAuthorizedWeighting had a mix of decimals attribute values: 2 4. Element sre_ScheduleICondensedFinancialInformationOfParentDebtInstrumentInterestRateStatedPercentage had a mix of decimals attribute values: 3 4 5. Element us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt had a mix of decimals attribute values: -9 -6. Element us-gaap_CommonStockSharesOutstanding had a mix of decimals attribute values: -6 0. Element us-gaap_DebtInstrumentInterestRateStatedPercentage had a mix of decimals attribute values: 3 6. Element us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum had a mix of decimals attribute values: 3 4. Element us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate had a mix of decimals attribute values: 2 4. Element us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized had a mix of decimals attribute values: -6 -3. Element us-gaap_PreferredStockSharesAuthorized had a mix of decimals attribute values: -6 0. Element us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate had a mix of decimals attribute values: 2 3. Element us-gaap_TemporaryEquityRedemptionPricePerShare had a mix of decimals attribute values: 2 4. 'Monetary' elements on report '040410 - Disclosure - INVESTMENTS IN UNCONSOLIDATED ENTITIES 2 (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '040910 - Disclosure - SHARE-BASED COMPENSATION 2 (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041140 - Disclosure - FAIR VALUE MEASUREMENTS 4 (Details)' had a mix of different decimal attribute values. 'Shares' elements on report '041320 - Disclosure - SHAREHOLDERS' EQUITY AND EARNINGS PER SHARE 3 (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041500 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041510 - Disclosure - CALIFORNIA UTILITIES' REGULATORY MATTERS - UTILITY INCENTIVE AWARDS (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041615 - Disclosure - COMMITMENTS AND CONTINGENCIES - LOSS ON CONTINGENCIES (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041630 - Disclosure - COMMITMENTS AND CONTINGENCIES - ENVIRONMENTAL ISSUES (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041635 - Disclosure - COMMITMENTS AND CONTINGENCIES - SITE CONTINGENCY (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '041640 - Disclosure - COMMITMENTS AND CONTINGENCIES - SCHEDULE OF NUCLEAR INSURANCE (Details)' had a mix of different decimal attribute values. Process Flow-Through: 001000 - Statement - CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Dec. 31, 2010' Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: 001500 - Statement - CONSOLIDATED BALANCE SHEETS (Parentheticals) Process Flow-Through: Removing column 'Dec. 31, 2010' Process Flow-Through: Removing column 'Dec. 31, 2009' Process Flow-Through: 002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2012' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2012' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2011' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2011' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2011' Process Flow-Through: 002010 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Process Flow-Through: 003000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Process Flow-Through: 041160 - Statement - FAIR VALUE MEASUREMENTS 6 (Details) sre-20121231.xml sre-20121231.xsd sre-20121231_cal.xml sre-20121231_def.xml sre-20121231_lab.xml sre-20121231_pre.xml true true