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CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details) (Southern California Gas Company [Member], Year 2014 [Member], USD $) In Thousands, unless otherwise specified | Mar. 31, 2015
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Southern California Gas Company [Member] | Year 2014 [Member] |
Utility Incentive Awards [Line Items] |
Recognized Gas Cost Incentive Mechanism Award | $ 13,700 sre_RecognizedGasCostIncentiveMechanismAward / dei_LegalEntityAxis = sre_SouthernCaliforniaGasCompanyMember / sre_ProgramYearAxis = sre_Year2014Member

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- Definition Recognized Gas Cost Incentive Mechanism Award. + References No definition available. + Details
Name: | sre_RecognizedGasCostIncentiveMechanismAward
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | sre_UtilityIncentiveAwardsLineItems
Namespace Prefix: | sre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration