1.0.0.3 false DOCUMENT AND ENTITY INFORMATION (USD $) In Billions, except Share data in Millions false 1 $ false false 3 Document Information 1 dei_DocumentInformationLineItems dei false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false No definition available. false 4 Document type 2 dei_DocumentType dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 10-Q 10-Q false false No definition available. No authoritative reference available. false 5 Document period end date 2 dei_DocumentPeriodEndDate dei false na duration date No definition available. false false false false false false false false false 1 false false 0 0 2009-06-30 2009-06-30 false false No definition available. No authoritative reference available. false 6 Amendment flag 2 dei_AmendmentFlag dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 false false false false No definition available. No authoritative reference available. false 8 Entity Information 1 dei_EntityInformationLineItems dei false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false No definition available. false 9 Entity registrant name 2 dei_EntityRegistrantName dei false na duration normalizedstring No definition available. false false false false false false false false false 1 false false 0 0 Sempra Energy Sempra Energy false false No definition available. No authoritative reference available. false 10 Entity central index key 2 dei_EntityCentralIndexKey dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 0001032208 0001032208 false false No definition available. No authoritative reference available. false 11 Current fiscal year end date 2 dei_CurrentFiscalYearEndDate dei false na duration monthday No definition available. false false false false false false false false false 1 false false 0 0 --12-31 --12-31 false false No definition available. No authoritative reference available. false 12 Entity well-known seasoned issuer 2 dei_EntityWellKnownSeasonedIssuer dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Yes Yes false false No definition available. No authoritative reference available. false 13 Entity voluntary filers 2 dei_EntityVoluntaryFilers dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 No No false false No definition available. No authoritative reference available. false 14 Entity current reporting status 2 dei_EntityCurrentReportingStatus dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Yes Yes false false No definition available. No authoritative reference available. false 15 Entity filer category 2 dei_EntityFilerCategory dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Large Accelerated Filer Large Accelerated Filer false false No definition available. No authoritative reference available. false 16 Entity public float 2 dei_EntityPublicFloat dei false credit instant monetary No definition available. false false false false false false false false false 1 true true 13800000000.0 14 false false No definition available. No authoritative reference available. false 17 Common stock outstanding 2 dei_EntityCommonStockSharesOutstanding dei false na instant shares No definition available. false false false false false false false false false 1 false true 0 0 false false No definition available. No authoritative reference available. false false 1 14 false Billions Millions UnKnown false true