XML 125 R93.htm IDEA: XBRL DOCUMENT
v3.10.0.1

INVESTMENTS IN UNCONSOLIDATED ENTITIES - GUARANTEES (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Long-term Purchase Commitment [Line Items] |  |
Current guarantor obligations | $ 9 |
Debt Service Operations [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Maximum exposure of guarantor obligations | 152 |
Current guarantor obligations | 5 |
Purchased Power Contracts [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Maximum exposure of guarantor obligations | 79 |
Current guarantor obligations | $ 1 |
IEnova [Member] | Sempra Mexico [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Ownership percentage held by noncontrolling owners | 33.50% | 33.60%
Corporate Joint Venture [Member] | IMG [Member] | IEnova [Member] | Sempra Mexico [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Ownership percentage held by noncontrolling owners | 40.00% |
TransCanada [Member] | Corporate Joint Venture [Member] | IMG [Member] | IEnova [Member] | Sempra Mexico [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Ownership percentage held by noncontrolling owners | 60.00% |

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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
Name: | us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=sre_DebtServiceOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=sre_PurchasedPowerContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=sre_SempraMexicoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=sre_InfraestructuraMarinadelGolfoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=sre_TranscanadaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |