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COMMITMENTS AND CONTINGENCIES - LEGAL PROCEEDINGS (Details)
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3 Months Ended |
36 Months Ended |
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Mar. 31, 2015
USD ($)
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Mar. 31, 2015
San Diego Gas and Electric Company [Member]
USD ($)
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Mar. 31, 2015
Southern California Gas Company [Member]
USD ($)
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Mar. 31, 2015
Loss from Catastrophes [Member]
San Diego Gas and Electric Company [Member]
USD ($)
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Mar. 31, 2015
Mobile Gas Litigation [Member]
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Mar. 31, 2015
Liberty Gas Storage Litigation [Member]
USD ($)
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Mar. 31, 2015
R B S [Member]
USD ($)
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Oct. 01, 2014
R B S [Member]
GBP (£)
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Mar. 31, 2015
Rim Rock [Member]
San Diego Gas and Electric Company [Member]
USD ($)
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| Loss Contingencies [Line Items] |
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| Loss Contingency Accrual, at Carrying Value |
$ 57,000,000us-gaap_LossContingencyAccrualAtCarryingValue |
$ 39,000,000us-gaap_LossContingencyAccrualAtCarryingValue
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
$ 12,000,000us-gaap_LossContingencyAccrualAtCarryingValue
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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| Payments for Legal Settlements in April 2010, CPUC Proceedings |
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14,750,000us-gaap_PaymentsForLegalSettlements
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Claims Payments By Insurers To All Claimants |
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1,600,000,000sre_ClaimsPaymentsByInsurersToAllClaimants
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Percentage of Total Claims to be Paid by Company |
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57.50%sre_PercentageOfClaimsPayments
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Total Settled Claims |
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1,300,000,000sre_TotalSettledClaims
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Total Remaining Settlement Demands |
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60,000,000sre_TotalRemainingSettlementDemands
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Loss Contingency Number Of Plaintiffs |
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6,500us-gaap_LossContingencyNumberOfPlaintiffs
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
350us-gaap_LossContingencyNumberOfPlaintiffs
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_MobileGasLitigationMember |
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| Loss Contingency, Number Of Claims |
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19,000sre_LossContingencyNumberOfClaims
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Liability Insurance Coverage, Maximum |
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1,100,000,000sre_LiabilityInsuranceCoverageMaximum
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Litigation Settlement Amount, Gross, Recovered From Third Parties |
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824,000,000us-gaap_LitigationSettlementAmount
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Loss Contingency Monetary Damages Sought |
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56,700,000sre_LossContingencyMonetaryDamagesSought
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_LibertyGasStorageLitigationMember |
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| Counterclaim For Damages On Contract Termination |
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215,000,000sre_EstimatedGainLossOnContractTermination
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_LibertyGasStorageLitigationMember |
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| Payments For Legal Settlements In Excess Of Recovered Amounts |
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493,000,000sre_PaymentsForLegalSettlementsInExcessOfRecoveredAmounts
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Regulatory Assets Arising From Wildfire Litigation Costs |
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372,000,000sre_RegulatoryAssetsArisingFromWildfireLitigationCosts
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Potential After-Tax Charge for Nonrecovery of CPUC Regulatory Assets |
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217,000,000sre_PotentialAfterTaxEarningsImpact
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Portion of Regulatory Assets Arising From Wildfire Litigation Related To CPUC Operations |
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367,000,000sre_PortionOfRegulatoryAssetsArisingFromWildfireLitigationRelatedToCpucOperations
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_LossFromCatastrophesMember |
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| Estimated Tax Equity Investment |
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285,000,000sre_EstimatedTaxEquityInvestment
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_RimRockMember |
| VAT Tax Claim Paid Upon Appeal |
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86,000,000sre_VatTaxClaimAmount
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_RbsMember |
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| Investment in RBS Sempra Commodities LLP |
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$ 71,000,000sre_InvestmentInJointVenture
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_RbsMember |
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| Loss Contingency, Number Of Lawsuits |
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11us-gaap_LossContingencyNewClaimsFiledNumber
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= sre_MobileGasLitigationMember |
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