v3.4.0.3

CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF WILDFIRE COST RECOVERY (Details) - San Diego Gas and Electric Company [Member] | 3 Months Ended
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Sep. 30, 2015 USD ($)
Public Utilities General Disclosures [Line Items] |
Incurred Costs | $ 2,400,000,000
Requested Recovery | 379,000,000
Insurance Reimbursement | 1,100,000,000
Third Party Settlement Recoveries | 824,000,000
FERC Jurisdictional Rates | $ 80,000,000
Voluntary Shareholder Contribution, Percentage | 10.00%
WEMA Balance | $ 42,000,000
FERC-Approved Wildfire Damage Expenses | $ 23,100,000

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- Definition FERC Jurisdictional Rates. + References No definition available. + Details
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Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Incurred Costs. + References No definition available. + Details
Name: | sre_IncurredCosts
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Insurance Reimbursement. + References No definition available. + Details
Name: | sre_InsuranceReimbursement
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Requested Recovery. + References No definition available. + Details
Name: | sre_RequestedRecovery
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Third Party Settlement Recoveries. + References No definition available. + Details
Name: | sre_ThirdPartySettlementRecoveries
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Voluntary Shareholder Contribution, Percentage. + References No definition available. + Details
Name: | sre_VoluntaryShareholderContributionPercentage
Namespace Prefix: | sre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Wildfire Expense Memorandum Account Balance. + References No definition available. + Details
Name: | sre_WemaBalance
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of public utility's approved rate increase (decrease) by regulatory agency. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=sre_SanDiegoGasAndElectricCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |