v2.4.1.9

DEBT AND CREDIT FACILITIES 2 (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Other Long Term Debt, Variable Rate Due 2017 [Member] | San Diego Gas and Electric Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 140us-gaap_DebtInstrumentFaceAmount / sre_DebtFootnoteAxis = sre_SanDiegoGasAndElectricCompanyMember / us-gaap_DebtInstrumentAxis = sre_Otherlongtermdebtvariableratedue2017memberMember
Debt Instrument, Interest Rate At Period End	0.47%us-gaap_DebtInstrumentInterestRateEffectivePercentage / sre_DebtFootnoteAxis = sre_SanDiegoGasAndElectricCompanyMember / us-gaap_DebtInstrumentAxis = sre_Otherlongtermdebtvariableratedue2017memberMember
Debt Instrument, Variable Base Rate	0.20%sre_DebtInstrumentVariableBaseRate / sre_DebtFootnoteAxis = sre_SanDiegoGasAndElectricCompanyMember / us-gaap_DebtInstrumentAxis = sre_Otherlongtermdebtvariableratedue2017memberMember
Other Long Term Debt, Fixed Rate Due 2020 [Member] | Sempra Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	500us-gaap_DebtInstrumentFaceAmount / sre_DebtFootnoteAxis = sre_SempraEnergyMember / us-gaap_DebtInstrumentAxis = sre_Otherlongtermdebtfixedratedue2020memberMember
Debt Instrument, Interest Rate, Stated Percentage	2.40%us-gaap_DebtInstrumentInterestRateStatedPercentage / sre_DebtFootnoteAxis = sre_SempraEnergyMember / us-gaap_DebtInstrumentAxis = sre_Otherlongtermdebtfixedratedue2020memberMember
Other Long Term Debt, Amortizing Fixed Rate Due 2022 [Member] | San Diego Gas and Electric Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 250us-gaap_DebtInstrumentFaceAmount / sre_DebtFootnoteAxis = sre_SanDiegoGasAndElectricCompanyMember / us-gaap_DebtInstrumentAxis = sre_OtherLongTermDebtAmortizingFixedRateDue2022MemberMember
Debt Instrument, Interest Rate, Stated Percentage	1.914%us-gaap_DebtInstrumentInterestRateStatedPercentage / sre_DebtFootnoteAxis = sre_SanDiegoGasAndElectricCompanyMember / us-gaap_DebtInstrumentAxis = sre_OtherLongTermDebtAmortizingFixedRateDue2022MemberMember

X

- Definition

Variable base rate on LIBOR

+ References

No definition available.

+ Details

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

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

+ Details

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

X

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=sre_OtherLongTermDebtAmortizingFixedRateDue2022MemberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=sre_Otherlongtermdebtfixedratedue2020memberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=sre_Otherlongtermdebtvariableratedue2017memberMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: