v3.6.0.2

DEBT AND CREDIT FACILITIES - CALLABLE LONG-TERM DEBT (Details) $ in Millions | Dec. 31, 2016 USD ($)
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Schedule Of Callable Long-term Debt [Line Items] |
Callable Long-term Debt | $ 520
Callable Long term Debt Subject To Make Whole Provisions | 12,844
Southern California Gas Company [Member] |
Schedule Of Callable Long-term Debt [Line Items] |
Callable Long-term Debt | 4
Callable Long term Debt Subject To Make Whole Provisions | 3,005
Other Sempra Energy [Member] |
Schedule Of Callable Long-term Debt [Line Items] |
Callable Long-term Debt | 104
Callable Long term Debt Subject To Make Whole Provisions | 6,042
San Diego Gas and Electric Company [Member] |
Schedule Of Callable Long-term Debt [Line Items] |
Callable Long-term Debt | 412
Callable Long term Debt Subject To Make Whole Provisions | 3,797
Otay Mesa Energy Center [Member] |
Schedule Of Callable Long-term Debt [Line Items] |
Callable Long-term Debt | $ 305

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- Definition Callable long-term debt. + References No definition available. + Details
Name: | sre_CallableLongTermDebt
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Callable long-term debt subject to make whole provisions. + References No definition available. + Details
Name: | sre_CallableLongTermDebtSubjectToMakeWholeProvisions
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | sre_ScheduleOfCallableLongTermDebtLineItems
Namespace Prefix: | sre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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