2.2.0.7 true SEMPRA UTILITIES' REGULATORY MATTERS (Details) (USD $) 040900 - Disclosure - SEMPRA UTILITIES' REGULATORY MATTERS (Details) true false false false 1 USD false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 2 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 3 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 4 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 5 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 6 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember false false Sunrise Powerlink [Member] sre_UtilityProjectsByProjectNameAxis xbrldi http://xbrl.org/2006/xbrldi sre_SunrisePowerlinkMember sre_UtilityProjectsByProjectNameAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 7 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember false false Solar Photovoltaic Program [Member] sre_UtilityProjectsByProjectNameAxis xbrldi http://xbrl.org/2006/xbrldi sre_SolarPhotovoltaicProgramMember sre_UtilityProjectsByProjectNameAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 8 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember false false East County Substation [Member] sre_UtilityProjectsByProjectNameAxis xbrldi http://xbrl.org/2006/xbrldi sre_EastCountySubstationMember sre_UtilityProjectsByProjectNameAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 9 USD true false false false San Diego Gas and Electric Company and Subsidiary [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SanDiegoGasAndElectricCompanyAndSubsidiaryMember dei_LegalEntityAxis explicitMember false false Wind Farm Project [Member] sre_UtilityProjectsByProjectNameAxis xbrldi http://xbrl.org/2006/xbrldi sre_WindFarmProjectMember sre_UtilityProjectsByProjectNameAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 10 USD true false false false Southern California Gas Company [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SouthernCaliforniaGasCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 11 USD true false false false Southern California Gas Company [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SouthernCaliforniaGasCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 12 USD true false false false Southern California Gas Company [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SouthernCaliforniaGasCompanyMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 13 USD true false false false Southern California Gas Company [Member] dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi sre_SouthernCaliforniaGasCompanyMember dei_LegalEntityAxis explicitMember false false Advanced Metering Infrastructure [Member] sre_UtilityProjectsByProjectNameAxis xbrldi http://xbrl.org/2006/xbrldi sre_AdvancedMeteringInfrastructureMember sre_UtilityProjectsByProjectNameAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 4 Schedule Of Utility Projects [Line Items] 2 sre_ScheduleOfUtilityProjectsLineItems sre false na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 5 Estimated Project Cost, Maximum 3 sre_EstimatedProjectCostMaximum sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 true true false false 1900000000 1900000000 true false false 7 true true false false 100000000 100000000 true false false 8 true true false false 280000000 280000000 true false false 9 true true false false 600000000 600000000 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 true true false false 1050000000 1050000000 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 6 Estimated Capital Investment 3 sre_EstimatedCapitalInvestment sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false true false false 900000000 900000000 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 7 Environmental Mitigation Costs Included In Estimated Project Cost 3 sre_EnvironmentalMitigationCostsIncludedInEstimatedProjectCost sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false true false false 190000000 190000000 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 8 Project To Date Expenditures 3 sre_ProjectToDateExpenditures sre false debit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false true false false 447000000 447000000 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 9 Capital Cost Cap Per Watt 3 sre_CapitalCostCapPerWatt sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 3.5 3.5 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 10 Purchased Power Cost Cap Per Megawatt Hour 3 sre_PurchasedPowerCostCapPerMegawattHour sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false true false false 235 235 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 11 Investment As Percentage Of Total Estimated Project Cost 3 sre_InvestmentAsPercentageOfTotalEstimatedProjectCost sre false na instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false true false false 0.8 0.8 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false us-types:percentItemType pure No definition available. No authoritative reference available. false 13 Schedule Of Regulatory Amounts [Line Items] 2 sre_ScheduleOfRegulatoryAmountsLineItems sre false na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 14 Renewable Portfolio Standards, Penalty Per Kilowatt Hour Of Renewable Energy Underdelivery 3 sre_RenewablePortfolioStandardsPenaltyPerKilowattHourOfRenewableEnergyUnderdelivery sre false debit instant No definition available. false false false false false false false false false false false false 1 false true false false 0.05 0.05 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 15 Renewable Portfolio Standards Noncompliance, Maximum Annual Penalty 3 sre_RenewablePortfolioStandardsNoncomplianceMaximumAnnualPenalty sre false debit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 25000000 25000000 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 16 General Rate Case, Annual Revenue Requirement Increase 3 sre_GeneralRateCaseAnnualRevenueRequirementIncrease sre false credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 246000000 246000000 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 282000000 282000000 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 17 General Rate Case, Percentage Annual Revenue Requirement Increase 3 sre_GeneralRateCasePercentageAnnualRevenueRequirementIncrease sre false na duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 0.07 0.07 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 0.074 0.074 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false us-types:percentItemType pure No definition available. No authoritative reference available. false 18 Recognized Gas Cost Incentive Mechanism Award 3 sre_RecognizedGasCostIncentiveMechanismAward sre false credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 12000000 12000000 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 19 Unrecorded Gas Cost Incentive Mechanism Award 3 sre_UnrecordedGasCostIncentiveMechanismAward sre false credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false true false false 6000000 6000000 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 20 Recognized Energy Efficiency Incentive Mechanism Award 3 sre_RecognizedEnergyEfficiencyIncentiveMechanismAward sre false credit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 6000000 6000000 true false false 3 false true false false 6000000 6000000 true false false 4 false true false false 300000 300000 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 3900000 3900000 true false false 11 false true false false 3900000 3900000 true false false 12 false true false false 2100000 2100000 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 21 Unrecorded Energy Efficiency Incentive Mechanism Award 3 sre_UnrecordedEnergyEfficiencyIncentiveMechanismAward sre false credit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 400000 400000 true false false 3 false true false false 400000 400000 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false true false false 1300000 1300000 true false false 11 false true false false 1300000 1300000 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 22 Contingent Recovery Of Capital Costs Related To Catastrophe 3 sre_ContingentRecoveryOfCapitalCostsRelatedToCatastrophe sre false credit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 43000000 43000000 true false false 3 false true false false 43000000 43000000 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 23 Contingent Recovery Of Facilities Costs Related To Catastrophe 3 sre_ContingentRecoveryOfFacilitiesCostsRelatedToCatastrophe sre false credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 49800000 49800000 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 24 Contingent Recovery Of Operation And Maintenance Costs Related To Catastrophe 3 sre_ContingentRecoveryOfOperationAndMaintenanceCostsRelatedToCatastrophe sre false credit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 6800000 6800000 true false false 3 false true false false 6800000 6800000 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 25 Incremental Facilities Costs Incurred Related To Catastrophe 3 sre_IncrementalFacilitiesCostsIncurredRelatedToCatastrophe sre false debit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 true false false 3 false true false false 30100000 30100000 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 26 Contingent Recovery Of Insurance Costs Related To Catastrophe 3 sre_ContingentRecoveryOfInsuranceCostsRelatedToCatastrophe sre false credit duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 29000000 29000000 true false false 3 false false false false 0 0 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 27 Incremental Insurance Costs Incurred Related To Catastrophe 3 sre_IncrementalInsuranceCostsIncurredRelatedToCatastrophe sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 false true false false 20000000 20000000 true false false 3 false true false false 20000000 20000000 true false false 4 false false false false 0 0 true false false 5 false true false false 5000000 5000000 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 28 Regulatory Recovery, Deductible Per Event 3 sre_RegulatoryRecoveryDeductiblePerEvent sre false debit instant No definition available. false false false false false false false false false false false false 1 false false false false 0 0 false false false 2 true true false false 5000000 5000000 true false false 3 true true false false 5000000 5000000 true false false 4 false false false false 0 0 true false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false 9 false false false false 0 0 true false false 10 false false false false 0 0 true false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 13 24 false NoRounding UnKnown UnKnown false true