v2.4.1.9

CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Property, plant and equipment related to VIE	$ 403sre_VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment	$ 410sre_VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment
Long-term debt related to VIE	312sre_VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt	315sre_VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt
Shareholders' equity:
Preferred stock, shares authorized	50us-gaap_PreferredStockSharesAuthorized	50us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common stock, shares authorized	750us-gaap_CommonStockSharesAuthorized	750us-gaap_CommonStockSharesAuthorized
Common stock, shares outstanding	247us-gaap_CommonStockSharesOutstanding	246us-gaap_CommonStockSharesOutstanding
San Diego Gas and Electric Company [Member]
Property, plant and equipment related to VIE	403sre_VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember	410sre_VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember
Long-term debt related to VIE	$ 312sre_VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember	$ 315sre_VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember
Shareholders' equity:
Common stock, shares authorized	255us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember	255us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember
Common stock, shares outstanding	117us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember	117us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = sre_SanDiegoGasAndElectricCompanyMember
Southern California Gas Company [Member]
Shareholders' equity:
Common stock, shares authorized	100us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = sre_SouthernCaliforniaGasCompanyMember	100us-gaap_CommonStockSharesAuthorized / dei_LegalEntityAxis = sre_SouthernCaliforniaGasCompanyMember
Common stock, shares outstanding	91us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = sre_SouthernCaliforniaGasCompanyMember	91us-gaap_CommonStockSharesOutstanding / dei_LegalEntityAxis = sre_SouthernCaliforniaGasCompanyMember

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