v2.4.1.9

DEBT AND CREDIT FACILITIES 2 (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015
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Other Long Term Debt, Variable Rate Due 2017 [Member] | San Diego Gas and Electric Company [Member] |
Debt Instrument [Line Items] |
Debt Instrument, Face Amount | $ 140 us-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 | 500 us-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 | $ 250 us-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

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- 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

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- 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

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- 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

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

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

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

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

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