Percent of ownership held by others, maximum.

No definition available.

Name:	sre_PercentOfOwnershipHeldByOthersMaximum
Namespace Prefix:	sre_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percent of ownership held by others, minimum.

+ References

No definition available.

+ Details

Name:	sre_PercentOfOwnershipHeldByOthersMinimum
Namespace Prefix:	sre_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 27
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 7

+ Details

Name:	us-gaap_MinorityInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

Carrying amount of equity interests owned by noncontrolling shareholders, partners, or other equity holders in one or more of the entities consolidated into the reporting entity's financial statements other than joint ventures, limited partnerships, operating partnerships or interests held by preferred unit holders.

+ References

No definition available.

+ Details

Name:	us-gaap_OtherMinorityInterests
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersSouthernGasTransmissionMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersLibertyGasStorageMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersTecsurMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersLuzDelSurMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersChilquintaEnergiaMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersOtayMesaVieMember
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- Details

Name:	sre_ScheduleOfOwnershipInterestsHeldByOthersAxis=sre_OwnershipInterestsHeldByOthersIenovaMember
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