v2.4.1.9
FAIR VALUE MEASUREMENTS 4 (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt $ 13,176us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
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Debt Instrument Unamortized Discount 23us-gaap_DebtInstrumentUnamortizedDiscount
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Capital Lease Obligations 336us-gaap_CapitalLeaseObligations
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Debt Instrument Carrying Amount 322us-gaap_DebtInstrumentCarryingAmount
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Carrying Amount | San Diego Gas and Electric Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 4,849us-gaap_NotesPayableFairValueDisclosure
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Debt Instrument Unamortized Discount 12us-gaap_DebtInstrumentUnamortizedDiscount
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Capital Lease Obligations 232us-gaap_CapitalLeaseObligations
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Debt Instrument Carrying Amount 322us-gaap_DebtInstrumentCarryingAmount
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Carrying Amount | Southern California Gas Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 1,913us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 22sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Debt Instrument Unamortized Discount 7us-gaap_DebtInstrumentUnamortizedDiscount
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Capital Lease Obligations   1us-gaap_CapitalLeaseObligations
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= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 14,784us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [1],[2] 13,699us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 23sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 0us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 0sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 13,889us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember		 [1],[2] 12,782us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 23sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 895us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 0sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | San Diego Gas and Electric Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 5,483us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
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= sre_SanDiegoGasAndElectricCompanyMember		 [1],[3]
Fair Value | San Diego Gas and Electric Company [Member] | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 0us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
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= sre_SanDiegoGasAndElectricCompanyMember		 [1],[3]
Fair Value | San Diego Gas and Electric Company [Member] | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 5,061us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
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= sre_SanDiegoGasAndElectricCompanyMember		 [1],[3]
Fair Value | San Diego Gas and Electric Company [Member] | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 422us-gaap_NotesPayableFairValueDisclosure
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Fair Value | Southern California Gas Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 2,167us-gaap_NotesPayableFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
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Preferred Stock Of Subsidiaries Fair Value Disclosure 25sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | Southern California Gas Company [Member] | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 0us-gaap_NotesPayableFairValueDisclosure
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Fair Value | Southern California Gas Company [Member] | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 2,167us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure 25sre_PreferredStockOfSubsidiariesFairValueDisclosure
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Fair Value | Southern California Gas Company [Member] | Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value of financial instruments, Total long-term debt 0us-gaap_NotesPayableFairValueDisclosure
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Preferred Stock Of Subsidiaries Fair Value Disclosure $ 0sre_PreferredStockOfSubsidiariesFairValueDisclosure
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[1]
Level 3 instruments include $322 million and $325 million at March 31, 2015 and December 31, 2014, respectively, related to Otay Mesa VIE.
[2]
Before reductions for unamortized discount (net of premium) of $23 million and $21 million at March 31, 2015 and December 31, 2014, respectively, and excluding build-to-suit and capital leases of $336 million and $310 million at March 31, 2015 and December 31, 2014, respectively. We discuss our long-term debt in Note 6 above and in Note 5 of the Notes to Consolidated Financial Statements in the Annual Report.
[3]
Before reductions for unamortized discount of $12 million and $11 million at March 31, 2015 and December 31, 2014, respectively, and excluding capital leases of $232 million and $234 million at March 31, 2015 and December 31, 2014, respectively.
[4]
Before reductions for unamortized discount of $7 million and $8 million at March 31, 2015 and December 31, 2014, respectively, and excluding capital leases of $1 million at December 31, 2014.