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CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 1 (Details) (Year 2016 [Member], USD $)
In Millions, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Mar. 31, 2015
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Dec. 31, 2018
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Dec. 31, 2017
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Dec. 31, 2016
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| San Diego Gas and Electric Company [Member] |
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| General Rate Case [Line Items] |
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| General Rate Case, Revenue Requirement, Revised Request |
$ 1,905sre_GeneralRateCaseRevenueRequirementRevisedRequest
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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| General Rate Case, Revenue Requirement Increase, Original Request |
133us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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| General Rate Case, Revenue Requirement Increase, Revised Request |
111us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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111us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
| General Rate Case, Revenue Requirement Percentage Increase, Revised Request |
6.00%us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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| General Rate Case, Revised Request Decrease Compared To Original |
6sre_GeneralRateCaseRevisedRequestComparedToOriginal
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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| General Rate Case, Proposed Revenue Requirement Increase (Decrease) |
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63sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
61sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
(62)sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
| General Rate Case, Proposed Revenue Requirement Percentage Increase (Decrease) |
|
3.50%sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
3.50%sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
(3.50%)sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
| General Rate Case, Adjustment To Decrease Estimated Revenue Requirement |
16sre_GeneralRateCaseAdjustment
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SanDiegoGasAndElectricCompanyMember |
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| Southern California Gas Company [Member] |
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| General Rate Case [Line Items] |
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| General Rate Case, Revenue Requirement, Revised Request |
2,342sre_GeneralRateCaseRevenueRequirementRevisedRequest
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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| General Rate Case, Revenue Requirement Increase, Original Request |
256us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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| General Rate Case, Revenue Requirement Increase, Revised Request |
246us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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246us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedAmount
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
| General Rate Case, Revenue Requirement Percentage Increase, Revised Request |
12.00%us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmendedPercentage
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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| General Rate Case, Revised Request Decrease Compared To Original |
10sre_GeneralRateCaseRevisedRequestComparedToOriginal
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
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| General Rate Case, Proposed Revenue Requirement Increase (Decrease) |
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$ 78sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
$ 76sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
$ 70sre_GeneralRateCaseProposedRevenueRequirementIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
| General Rate Case, Proposed Revenue Requirement Percentage Increase (Decrease) |
|
3.50%sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
3.50%sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |
3.30%sre_GeneralRateCaseProposedRevenueRequirementPercentageIncreaseDecrease
/ sre_GrcYearAxis
= sre_Year2016Member
/ dei_LegalEntityAxis
= sre_SouthernCaliforniaGasCompanyMember |