1.0.0.3 true CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions false 1 $ true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 $ true false false false us-gaap_ParentCompanyMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_ParentCompanyMember dei_LegalEntityAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 1 Sempra Energy Consolidated 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 2 Current assets: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 3 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 true true 818000000 818 false false 2 true true 331000000 331 false false No definition available. No authoritative reference available. false 4 Short-term investments 2 us-gaap_ShortTermInvestments us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 176000000 176 false false No definition available. No authoritative reference available. false 5 Restricted cash 2 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 27000000 27 false false 2 false true 27000000 27 false false No definition available. No authoritative reference available. false 6 Trade accounts receivable, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 596000000 596 false false 2 false true 903000000 903 false false No definition available. No authoritative reference available. false 7 Other accounts and notes receivable, net 2 us-gaap_AccountsNotesAndLoansReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 119000000 119 false false 2 false true 78000000 78 false false No definition available. No authoritative reference available. false 8 Due from unconsolidated affiliates 2 us-gaap_DueFromAffiliateCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 21000000 21 false false 2 false true 4000000 4 false false No definition available. No authoritative reference available. false 9 Income taxes receivable 2 us-gaap_IncomeTaxesReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 114000000 114 false false 2 false true 195000000 195 false false No definition available. No authoritative reference available. false 10 Deferred income taxes 2 us-gaap_DeferredTaxAssetsNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 96000000 96 false false 2 false true 31000000 31 false false No definition available. No authoritative reference available. false 11 Inventories 2 us-gaap_InventoryNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 169000000 169 false false 2 false true 320000000 320 false false No definition available. No authoritative reference available. false 13 Regulatory assets 2 us-gaap_RegulatoryAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 88000000 88 false false 2 false true 121000000 121 false false No definition available. No authoritative reference available. false 14 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 100000000 100 false false 2 false true 160000000 160 false false No definition available. No authoritative reference available. false 15 Insurance receivable related to wildfire litigation (Note 10) 2 us-gaap_InsuranceSettlementsReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 940000000 940 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 16 Other current assets 2 us-gaap_OtherAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 236000000 236 false false 2 false true 130000000 130 false false No definition available. No authoritative reference available. false 17 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 3324000000 3324 false false 2 false true 2476000000 2476 false false No definition available. No authoritative reference available. true 18 Investments and other assets: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 21 Regulatory assets arising from fixed-price contracts and other derivatives - noncurrent 2 sre_RegulatoryAssetsArisingFromFixedPriceContractsAndOtherDerivativesNoncurrent sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 252000000 252 false false 2 false true 264000000 264 false false No definition available. No authoritative reference available. false 22 Regulatory assets arising from pension and other postretirement benefit obligations 2 sre_RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 1212000000 1212 false false 2 false true 1188000000 1188 false false No definition available. No authoritative reference available. false 23 Other regulatory assets 2 us-gaap_RegulatoryAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 558000000 558 false false 2 false true 534000000 534 false false No definition available. No authoritative reference available. false 24 Nuclear decommissioning trusts 2 us-gaap_DecommissioningFundInvestments us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 580000000 580 false false 2 false true 577000000 577 false false No definition available. No authoritative reference available. false 25 Investment in RBS Sempra Commodities LLP 2 sre_InvestmentInJointVenture sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 2019000000 2019 false false 2 false true 2082000000 2082 false false No definition available. No authoritative reference available. false 26 Other investments 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1470000000 1470 false false 2 false true 1166000000 1166 false false No definition available. No authoritative reference available. false 27 Goodwill and other intangible assets 2 sre_GoodwillAndOtherIntangibleAssets sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 529000000 529 false false 2 false true 539000000 539 false false No definition available. No authoritative reference available. false 28 Sundry 2 us-gaap_OtherAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 565000000 565 false false 2 false true 709000000 709 false false No definition available. No authoritative reference available. false 29 Total investments and other assets 2 sre_TotalInvestmentsAndOtherAssets sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 7185000000 7185 false false 2 false true 7059000000 7059 false false No definition available. No authoritative reference available. true 30 Property, plant and equipment: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 31 Property, plant and equipment 2 us-gaap_PropertyPlantAndEquipmentGross us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 23889000000 23889 false false 2 false true 23153000000 23153 false false No definition available. No authoritative reference available. false 32 Less accumulated depreciation and amortization 2 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -6476000000 -6476 false false 2 false true -6288000000 -6288 false false No definition available. No authoritative reference available. false 33 Property, plant and equipment, net 2 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 17413000000 17413 false false 2 false true 16865000000 16865 false false No definition available. No authoritative reference available. true 34 Total assets 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 27922000000 27922 false false 2 false true 26400000000 26400 false false No definition available. No authoritative reference available. true 35 Current liabilities: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 36 Short-term debt 2 us-gaap_ShortTermBorrowings us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 291000000 291 false false 2 false true 503000000 503 [1] false false No definition available. No authoritative reference available. false 37 Accounts payable - trade 2 us-gaap_AccountsPayableTradeCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 478000000 478 false false 2 false true 606000000 606 [1] false false No definition available. No authoritative reference available. false 38 Accounts payable - other 2 us-gaap_AccountsPayableOtherCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 138000000 138 false false 2 false true 250000000 250 [1] false false No definition available. No authoritative reference available. false 39 Due to unconsolidated affiliates 2 us-gaap_DueToAffiliateCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 31000000 31 false false 2 false true 38000000 38 [1] false false No definition available. No authoritative reference available. false 41 Dividends and interest payable 2 us-gaap_InterestAndDividendsPayableCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 183000000 183 false false 2 false true 156000000 156 [1] false false No definition available. No authoritative reference available. false 42 Accrued compensation and benefits 2 us-gaap_EmployeeRelatedLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 186000000 186 false false 2 false true 280000000 280 [1] false false No definition available. No authoritative reference available. false 43 Regulatory balancing accounts, net 2 sre_RegulatoryBalancingAccountsNet sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 602000000 602 false false 2 false true 335000000 335 [1] false false No definition available. No authoritative reference available. false 44 Current portion of long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 624000000 624 false false 2 false true 410000000 410 [1] false false No definition available. No authoritative reference available. false 45 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 115000000 115 false false 2 false true 180000000 180 [1] false false No definition available. No authoritative reference available. false 46 Customer deposits 2 us-gaap_CustomerDepositsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 149000000 149 false false 2 false true 170000000 170 [1] false false No definition available. No authoritative reference available. false 47 Reserve for wildfire litigation (Note 10) 2 us-gaap_LitigationReserveCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 940000000 940 false false 2 false true 0 0 [1] false false No definition available. No authoritative reference available. false 48 Other 2 us-gaap_OtherLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 616000000 616 false false 2 false true 684000000 684 [1] false false No definition available. No authoritative reference available. false 49 Total current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 4353000000 4353 false false 2 false true 3612000000 3612 [1] false false No definition available. No authoritative reference available. true 50 Long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligations us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 6723000000 6723 false false 2 false true 6544000000 6544 [1] false false No definition available. No authoritative reference available. false 51 Deferred credits and other liabilities: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 52 Due to unconsolidated affiliate 2 us-gaap_DueToAffiliateNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 102000000 102 false false 2 false true 102000000 102 [1] false false No definition available. No authoritative reference available. false 53 Customer advances for construction 2 us-gaap_CustomerAdvancesForConstruction us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 154000000 154 false false 2 false true 155000000 155 [1] false false No definition available. No authoritative reference available. false 54 Pension and other postretirement benefit obligations, net of plan assets 2 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1512000000 1512 false false 2 false true 1487000000 1487 [1] false false No definition available. No authoritative reference available. false 55 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1152000000 1152 false false 2 false true 946000000 946 [1] false false No definition available. No authoritative reference available. false 56 Deferred investment tax credits 2 us-gaap_AccumulatedDeferredInvestmentTaxCredit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 54000000 54 false false 2 false true 57000000 57 [1] false false No definition available. No authoritative reference available. false 57 Regulatory liabilities arising from removal obligations 2 sre_RegulatoryLiabilitiesArisingFromRemovalObligations sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 2453000000 2453 false false 2 false true 2430000000 2430 [1] false false No definition available. No authoritative reference available. false 58 Asset retirement obligations 2 us-gaap_AssetRetirementObligationsNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1210000000 1210 false false 2 false true 1159000000 1159 [1] false false No definition available. No authoritative reference available. false 60 Other regulatory liabilities 2 us-gaap_RegulatoryLiabilityNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 209000000 209 false false 2 false true 219000000 219 [1] false false No definition available. No authoritative reference available. false 61 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 347000000 347 false false 2 false true 392000000 392 [1] false false No definition available. No authoritative reference available. false 62 Deferred credits and other 2 us-gaap_OtherLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 842000000 842 false false 2 false true 909000000 909 [1] false false No definition available. No authoritative reference available. false 63 Total deferred credits and other liabilities 2 sre_TotalDeferredCreditsAndOtherLiabilities sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 8035000000 8035 false false 2 false true 7856000000 7856 [1] false false No definition available. No authoritative reference available. true 64 Contingently redeemable preferred stock 2 us-gaap_TemporaryEquityCarryingAmount us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 79000000 79 false false 2 false true 79000000 79 [1] false false No definition available. No authoritative reference available. false 65 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 66 Preferred Stock 2 us-gaap_PreferredStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 [1] false false No definition available. No authoritative reference available. false 67 Common Stock 2 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2328000000 2328 false false 2 false true 2265000000 2265 [1] false false No definition available. No authoritative reference available. false 68 Retained earnings 2 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 6559000000 6559 false false 2 false true 6235000000 6235 [1] false false No definition available. No authoritative reference available. false 69 Deferred compensation 2 us-gaap_DeferredCompensationEquity us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true -15000000 -15 false false 2 false true -18000000 -18 [1] false false No definition available. No authoritative reference available. false 70 Accumulated other comprehensive income (loss) 2 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -395000000 -395 false false 2 false true -513000000 -513 [1] false false No definition available. No authoritative reference available. false 71 Total shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 8477000000 8477 false false 2 false true 7969000000 7969 [1] false false No definition available. No authoritative reference available. true 72 Preferred stock of subsidiaries 2 sre_PreferredStockOfSubsidiaries sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 100000000 100 false false 2 false true 100000000 100 [1] false false No definition available. No authoritative reference available. false 73 Other noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 155000000 155 false false 2 false true 240000000 240 [1] false false No definition available. No authoritative reference available. false 74 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 8732000000 8732 false false 2 false true 8309000000 8309 [1] false false No definition available. No authoritative reference available. true 75 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 27922000000 27922 false false 2 false true 26400000000 26400 [1] false false No definition available. No authoritative reference available. true 76 San Diego Gas and Electric Company and Subsidiary 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 77 Current assets: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 78 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 187000000 187 false false 2 false true 19000000 19 false false No definition available. No authoritative reference available. false 79 Short-term investments 2 us-gaap_ShortTermInvestments us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 24000000 24 false false No definition available. No authoritative reference available. false 81 Trade accounts receivable, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 221000000 221 false false 2 false true 225000000 225 false false No definition available. No authoritative reference available. false 82 Other accounts and notes receivable, net 2 us-gaap_AccountsNotesAndLoansReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 69000000 69 false false 2 false true 30000000 30 false false No definition available. No authoritative reference available. false 83 Due from unconsolidated affiliates 2 us-gaap_DueFromAffiliateCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true 29000000 29 false false No definition available. No authoritative reference available. false 84 Income taxes receivable 2 us-gaap_IncomeTaxesReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 26000000 26 false false 2 false true 22000000 22 false false No definition available. No authoritative reference available. false 85 Deferred income taxes 2 us-gaap_DeferredTaxAssetsNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 37000000 37 false false 2 false true 17000000 17 false false No definition available. No authoritative reference available. false 86 Inventories 2 us-gaap_InventoryNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 63000000 63 false false 2 false true 62000000 62 false false No definition available. No authoritative reference available. false 87 Regulatory assets arising from fixed-price contracts and other derivatives - current 2 sre_RegulatoryAssetsArisingFromFixedPriceContractsAndOtherDerivativesCurrent sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 68000000 68 false false 2 false true 94000000 94 false false No definition available. No authoritative reference available. false 88 Regulatory assets 2 us-gaap_RegulatoryAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 6000000 6 false false 2 false true 8000000 8 false false No definition available. No authoritative reference available. false 89 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 35000000 35 false false 2 false true 39000000 39 false false No definition available. No authoritative reference available. false 90 Insurance receivable related to wildfire litigation (Note 10) 2 us-gaap_InsuranceSettlementsReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 940000000 940 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 91 Other current assets 2 us-gaap_OtherAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 62000000 62 false false 2 false true 15000000 15 false false No definition available. No authoritative reference available. false 92 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1715000000 1715 false false 2 false true 584000000 584 false false No definition available. No authoritative reference available. true 93 Investments and other assets: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 94 Due from unconsolidated affiliate 2 us-gaap_DueFromAffiliateNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 3000000 3 false false 2 false true 4000000 4 false false No definition available. No authoritative reference available. false 95 Deferred taxes recoverable in rates 2 sre_DeferredIncomeTaxesRecoverableInRates sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 388000000 388 false false 2 false true 369000000 369 false false No definition available. No authoritative reference available. false 96 Regulatory assets arising from fixed-price contracts and other derivatives - noncurrent 2 sre_RegulatoryAssetsArisingFromFixedPriceContractsAndOtherDerivativesNoncurrent sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 252000000 252 false false 2 false true 264000000 264 false false No definition available. No authoritative reference available. false 97 Regulatory assets arising from pension and other postretirement benefit obligations 2 sre_RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 397000000 397 false false 2 false true 393000000 393 false false No definition available. No authoritative reference available. false 98 Other regulatory assets 2 us-gaap_RegulatoryAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 56000000 56 false false 2 false true 59000000 59 false false No definition available. No authoritative reference available. false 99 Nuclear decommissioning trusts 2 us-gaap_DecommissioningFundInvestments us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 580000000 580 false false 2 false true 577000000 577 false false No definition available. No authoritative reference available. false 103 Sundry 2 us-gaap_OtherAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 41000000 41 false false 2 false true 154000000 154 false false No definition available. No authoritative reference available. false 104 Total investments and other assets 2 sre_TotalInvestmentsAndOtherAssets sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 1717000000 1717 false false 2 false true 1820000000 1820 false false No definition available. No authoritative reference available. true 105 Property, plant and equipment: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 106 Property, plant and equipment 2 us-gaap_PropertyPlantAndEquipmentGross us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 9526000000 9526 false false 2 false true 9095000000 9095 false false No definition available. No authoritative reference available. false 107 Less accumulated depreciation and amortization 2 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -2489000000 -2489 false false 2 false true -2420000000 -2420 false false No definition available. No authoritative reference available. false 108 Property, plant and equipment, net 2 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 7037000000 7037 false false 2 false true 6675000000 6675 false false No definition available. No authoritative reference available. true 109 Total assets 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 10469000000 10469 false false 2 false true 9079000000 9079 false false No definition available. No authoritative reference available. true 110 Current liabilities: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 112 Accounts payable - trade 2 us-gaap_AccountsPayableTradeCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 196000000 196 false false 2 false true 261000000 261 [1] false false No definition available. No authoritative reference available. false 114 Due to unconsolidated affiliates 2 us-gaap_DueToAffiliateCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 55000000 55 false false 2 false true 1000000 1 [1] false false No definition available. No authoritative reference available. false 117 Accrued compensation and benefits 2 us-gaap_EmployeeRelatedLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 67000000 67 false false 2 false true 105000000 105 [1] false false No definition available. No authoritative reference available. false 118 Regulatory balancing accounts, net 2 sre_RegulatoryBalancingAccountsNet sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 232000000 232 false false 2 false true 114000000 114 [1] false false No definition available. No authoritative reference available. false 119 Current portion of long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 7000000 7 false false 2 false true 2000000 2 [1] false false No definition available. No authoritative reference available. false 120 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 57000000 57 false false 2 false true 77000000 77 [1] false false No definition available. No authoritative reference available. false 121 Customer deposits 2 us-gaap_CustomerDepositsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 54000000 54 false false 2 false true 53000000 53 [1] false false No definition available. No authoritative reference available. false 122 Reserve for wildfire litigation (Note 10) 2 us-gaap_LitigationReserveCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 940000000 940 false false 2 false true 0 0 [1] false false No definition available. No authoritative reference available. false 123 Other 2 us-gaap_OtherLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 152000000 152 false false 2 false true 163000000 163 [1] false false No definition available. No authoritative reference available. false 124 Total current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1760000000 1760 false false 2 false true 776000000 776 [1] false false No definition available. No authoritative reference available. true 125 Long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligations us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2495000000 2495 false false 2 false true 2142000000 2142 [1] false false No definition available. No authoritative reference available. false 126 Deferred credits and other liabilities: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 128 Customer advances for construction 2 us-gaap_CustomerAdvancesForConstruction us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 21000000 21 false false 2 false true 26000000 26 [1] false false No definition available. No authoritative reference available. false 129 Pension and other postretirement benefit obligations, net of plan assets 2 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 422000000 422 false false 2 false true 419000000 419 [1] false false No definition available. No authoritative reference available. false 130 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 686000000 686 false false 2 false true 628000000 628 [1] false false No definition available. No authoritative reference available. false 131 Deferred investment tax credits 2 us-gaap_AccumulatedDeferredInvestmentTaxCredit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 25000000 25 false false 2 false true 26000000 26 [1] false false No definition available. No authoritative reference available. false 132 Regulatory liabilities arising from removal obligations 2 sre_RegulatoryLiabilitiesArisingFromRemovalObligations sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 1222000000 1222 false false 2 false true 1212000000 1212 [1] false false No definition available. No authoritative reference available. false 133 Asset retirement obligations 2 us-gaap_AssetRetirementObligationsNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 566000000 566 false false 2 false true 550000000 550 [1] false false No definition available. No authoritative reference available. false 136 Fixed-price contracts and other derivatives 2 us-gaap_DerivativeLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 291000000 291 false false 2 false true 347000000 347 [1] false false No definition available. No authoritative reference available. false 137 Deferred credits and other 2 us-gaap_OtherLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 180000000 180 false false 2 false true 204000000 204 [1] false false No definition available. No authoritative reference available. false 138 Total deferred credits and other liabilities 2 sre_TotalDeferredCreditsAndOtherLiabilities sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 3413000000 3413 false false 2 false true 3412000000 3412 [1] false false No definition available. No authoritative reference available. true 139 Contingently redeemable preferred stock 2 us-gaap_TemporaryEquityCarryingAmount us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 79000000 79 false false 2 false true 79000000 79 [1] false false No definition available. No authoritative reference available. false 140 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 142 Common Stock 2 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1138000000 1138 false false 2 false true 1138000000 1138 [1] false false No definition available. No authoritative reference available. false 143 Retained earnings 2 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1436000000 1436 false false 2 false true 1417000000 1417 [1] false false No definition available. No authoritative reference available. false 145 Accumulated other comprehensive income (loss) 2 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -10000000 -10 false false 2 false true -13000000 -13 [1] false false No definition available. No authoritative reference available. false 146 Total shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2564000000 2564 false false 2 false true 2542000000 2542 [1] false false No definition available. No authoritative reference available. true 148 Other noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 158000000 158 false false 2 false true 128000000 128 [1] false false No definition available. No authoritative reference available. false 149 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2722000000 2722 false false 2 false true 2670000000 2670 [1] false false No definition available. No authoritative reference available. true 150 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 10469000000 10469 false false 2 false true 9079000000 9079 [1] false false No definition available. No authoritative reference available. true 151 Pacific Enterprises and Subsidiaries 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 152 Current assets: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 153 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 538000000 538 false false 2 false true 206000000 206 false false No definition available. No authoritative reference available. false 156 Trade accounts receivable, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 294000000 294 false false 2 false true 572000000 572 false false No definition available. No authoritative reference available. false 157 Other accounts and notes receivable, net 2 us-gaap_AccountsNotesAndLoansReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 13000000 13 false false 2 false true 20000000 20 false false No definition available. No authoritative reference available. false 158 Due from unconsolidated affiliates 2 us-gaap_DueFromAffiliateCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 12000000 12 false false 2 false true 5000000 5 false false No definition available. No authoritative reference available. false 159 Income taxes receivable 2 us-gaap_IncomeTaxesReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 11000000 11 false false 2 false true 108000000 108 false false No definition available. No authoritative reference available. false 160 Deferred income taxes 2 us-gaap_DeferredTaxAssetsNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 161 Inventories 2 us-gaap_InventoryNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 57000000 57 false false 2 false true 167000000 167 false false No definition available. No authoritative reference available. false 163 Regulatory assets 2 us-gaap_RegulatoryAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 14000000 14 false false 2 false true 18000000 18 false false No definition available. No authoritative reference available. false 166 Other current assets 2 us-gaap_OtherAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 87000000 87 false false 2 false true 37000000 37 false false No definition available. No authoritative reference available. false 167 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1027000000 1027 false false 2 false true 1133000000 1133 false false No definition available. No authoritative reference available. true 168 Investments and other assets: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 169 Due from unconsolidated affiliate 2 us-gaap_DueFromAffiliateNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 517000000 517 false false 2 false true 457000000 457 false false No definition available. No authoritative reference available. false 172 Regulatory assets arising from pension and other postretirement benefit obligations 2 sre_RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 816000000 816 false false 2 false true 795000000 795 false false No definition available. No authoritative reference available. false 173 Other regulatory assets 2 us-gaap_RegulatoryAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 114000000 114 false false 2 false true 105000000 105 false false No definition available. No authoritative reference available. false 178 Sundry 2 us-gaap_OtherAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 42000000 42 false false 2 false true 49000000 49 false false No definition available. No authoritative reference available. false 179 Total investments and other assets 2 sre_TotalInvestmentsAndOtherAssets sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 1489000000 1489 false false 2 false true 1406000000 1406 false false No definition available. No authoritative reference available. true 180 Property, plant and equipment: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 181 Property, plant and equipment 2 us-gaap_PropertyPlantAndEquipmentGross us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 8975000000 8975 false false 2 false true 8816000000 8816 false false No definition available. No authoritative reference available. false 182 Less accumulated depreciation and amortization 2 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -3509000000 -3509 false false 2 false true -3448000000 -3448 false false No definition available. No authoritative reference available. false 183 Property, plant and equipment, net 2 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 5466000000 5466 false false 2 false true 5368000000 5368 false false No definition available. No authoritative reference available. true 184 Total assets 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 7982000000 7982 false false 2 false true 7907000000 7907 false false No definition available. No authoritative reference available. true 185 Current liabilities: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 187 Accounts payable - trade 2 us-gaap_AccountsPayableTradeCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 142000000 142 false false 2 false true 257000000 257 [1] false false No definition available. No authoritative reference available. false 188 Accounts payable - other 2 us-gaap_AccountsPayableOtherCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 91000000 91 false false 2 false true 163000000 163 [1] false false No definition available. No authoritative reference available. false 189 Due to unconsolidated affiliates 2 us-gaap_DueToAffiliateCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 111000000 111 false false 2 false true 106000000 106 [1] false false No definition available. No authoritative reference available. false 190 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 6000000 6 [1] false false No definition available. No authoritative reference available. false 192 Accrued compensation and benefits 2 us-gaap_EmployeeRelatedLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 80000000 80 false false 2 false true 92000000 92 [1] false false No definition available. No authoritative reference available. false 193 Regulatory balancing accounts, net 2 sre_RegulatoryBalancingAccountsNet sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 370000000 370 false false 2 false true 221000000 221 [1] false false No definition available. No authoritative reference available. false 194 Current portion of long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 100000000 100 false false 2 false true 100000000 100 [1] false false No definition available. No authoritative reference available. false 196 Customer deposits 2 us-gaap_CustomerDepositsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 94000000 94 false false 2 false true 114000000 114 [1] false false No definition available. No authoritative reference available. false 198 Other 2 us-gaap_OtherLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 165000000 165 false false 2 false true 213000000 213 [1] false false No definition available. No authoritative reference available. false 199 Total current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1153000000 1153 false false 2 false true 1272000000 1272 [1] false false No definition available. No authoritative reference available. true 200 Long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligations us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1269000000 1269 false false 2 false true 1270000000 1270 [1] false false No definition available. No authoritative reference available. false 201 Deferred credits and other liabilities: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 203 Customer advances for construction 2 us-gaap_CustomerAdvancesForConstruction us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 132000000 132 false false 2 false true 131000000 131 [1] false false No definition available. No authoritative reference available. false 204 Pension and other postretirement benefit obligations, net of plan assets 2 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 842000000 842 false false 2 false true 823000000 823 [1] false false No definition available. No authoritative reference available. false 205 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 197000000 197 false false 2 false true 157000000 157 [1] false false No definition available. No authoritative reference available. false 206 Deferred investment tax credits 2 us-gaap_AccumulatedDeferredInvestmentTaxCredit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 29000000 29 false false 2 false true 30000000 30 [1] false false No definition available. No authoritative reference available. false 207 Regulatory liabilities arising from removal obligations 2 sre_RegulatoryLiabilitiesArisingFromRemovalObligations sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 1230000000 1230 false false 2 false true 1218000000 1218 [1] false false No definition available. No authoritative reference available. false 208 Asset retirement obligations 2 us-gaap_AssetRetirementObligationsNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 599000000 599 false false 2 false true 581000000 581 [1] false false No definition available. No authoritative reference available. false 209 Deferred taxes refundable in rates 2 sre_DeferredTaxesRefundableInRates sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 203000000 203 false false 2 false true 214000000 214 [1] false false No definition available. No authoritative reference available. false 212 Deferred credits and other 2 us-gaap_OtherLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 247000000 247 false false 2 false true 251000000 251 [1] false false No definition available. No authoritative reference available. false 213 Total deferred credits and other liabilities 2 sre_TotalDeferredCreditsAndOtherLiabilities sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 3479000000 3479 false false 2 false true 3405000000 3405 [1] false false No definition available. No authoritative reference available. true 215 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 216 Preferred Stock 2 us-gaap_PreferredStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 80000000 80 false false 2 false true 80000000 80 [1] false false No definition available. No authoritative reference available. false 217 Common Stock 2 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1462000000 1462 false false 2 false true 1462000000 1462 [1] false false No definition available. No authoritative reference available. false 218 Retained earnings 2 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 545000000 545 false false 2 false true 426000000 426 [1] false false No definition available. No authoritative reference available. false 220 Accumulated other comprehensive income (loss) 2 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -26000000 -26 false false 2 false true -28000000 -28 [1] false false No definition available. No authoritative reference available. false 221 Total shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2061000000 2061 false false 2 false true 1940000000 1940 [1] false false No definition available. No authoritative reference available. true 222 Preferred stock of subsidiaries 2 sre_PreferredStockOfSubsidiaries sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 20000000 20 false false 2 false true 20000000 20 [1] false false No definition available. No authoritative reference available. false 224 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2081000000 2081 false false 2 false true 1960000000 1960 [1] false false No definition available. No authoritative reference available. true 225 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 7982000000 7982 false false 2 false true 7907000000 7907 [1] false false No definition available. No authoritative reference available. true 226 Southern California Gas Company and Subsidiaries 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 227 Current assets: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 228 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 538000000 538 false false 2 false true 206000000 206 false false No definition available. No authoritative reference available. false 231 Trade accounts receivable, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 294000000 294 false false 2 false true 572000000 572 false false No definition available. No authoritative reference available. false 232 Other accounts and notes receivable, net 2 us-gaap_AccountsNotesAndLoansReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 13000000 13 false false 2 false true 20000000 20 false false No definition available. No authoritative reference available. false 233 Due from unconsolidated affiliates 2 us-gaap_DueFromAffiliateCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 7000000 7 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 234 Income taxes receivable 2 us-gaap_IncomeTaxesReceivable us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 11000000 11 false false 2 false true 41000000 41 false false No definition available. No authoritative reference available. false 235 Deferred income taxes 2 us-gaap_DeferredTaxAssetsNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 236 Inventories 2 us-gaap_InventoryNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 57000000 57 false false 2 false true 167000000 167 false false No definition available. No authoritative reference available. false 238 Regulatory assets 2 us-gaap_RegulatoryAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 14000000 14 false false 2 false true 18000000 18 false false No definition available. No authoritative reference available. false 241 Other current assets 2 us-gaap_OtherAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 87000000 87 false false 2 false true 37000000 37 false false No definition available. No authoritative reference available. false 242 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 1022000000 1022 false false 2 false true 1061000000 1061 false false No definition available. No authoritative reference available. true 243 Investments and other assets: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 247 Regulatory assets arising from pension and other postretirement benefit obligations 2 sre_RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 816000000 816 false false 2 false true 795000000 795 false false No definition available. No authoritative reference available. false 248 Other regulatory assets 2 us-gaap_RegulatoryAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 114000000 114 false false 2 false true 105000000 105 false false No definition available. No authoritative reference available. false 253 Sundry 2 us-gaap_OtherAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 18000000 18 false false 2 false true 24000000 24 false false No definition available. No authoritative reference available. false 254 Total investments and other assets 2 sre_TotalInvestmentsAndOtherAssets sre false debit instant monetary No definition available. false false false false false false false false false 1 false true 948000000 948 false false 2 false true 924000000 924 false false No definition available. No authoritative reference available. true 255 Property, plant and equipment: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 256 Property, plant and equipment 2 us-gaap_PropertyPlantAndEquipmentGross us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 8973000000 8973 false false 2 false true 8814000000 8814 false false No definition available. No authoritative reference available. false 257 Less accumulated depreciation and amortization 2 us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -3509000000 -3509 false false 2 false true -3448000000 -3448 false false No definition available. No authoritative reference available. false 258 Property, plant and equipment, net 2 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 5464000000 5464 false false 2 false true 5366000000 5366 false false No definition available. No authoritative reference available. true 259 Total assets 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 7434000000 7434 false false 2 false true 7351000000 7351 false false No definition available. No authoritative reference available. true 260 Current liabilities: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 262 Accounts payable - trade 2 us-gaap_AccountsPayableTradeCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 142000000 142 false false 2 false true 257000000 257 false false No definition available. No authoritative reference available. false 263 Accounts payable - other 2 us-gaap_AccountsPayableOtherCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 91000000 91 false false 2 false true 163000000 163 false false No definition available. No authoritative reference available. false 264 Due to unconsolidated affiliates 2 us-gaap_DueToAffiliateCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 27000000 27 false false 2 false true 23000000 23 false false No definition available. No authoritative reference available. false 265 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 6000000 6 false false No definition available. No authoritative reference available. false 267 Accrued compensation and benefits 2 us-gaap_EmployeeRelatedLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 80000000 80 false false 2 false true 92000000 92 false false No definition available. No authoritative reference available. false 268 Regulatory balancing accounts, net 2 sre_RegulatoryBalancingAccountsNet sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 370000000 370 false false 2 false true 221000000 221 false false No definition available. No authoritative reference available. false 269 Current portion of long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 100000000 100 false false 2 false true 100000000 100 false false No definition available. No authoritative reference available. false 271 Customer deposits 2 us-gaap_CustomerDepositsCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 94000000 94 false false 2 false true 114000000 114 false false No definition available. No authoritative reference available. false 273 Other 2 us-gaap_OtherLiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 164000000 164 false false 2 false true 211000000 211 false false No definition available. No authoritative reference available. false 274 Total current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1068000000 1068 false false 2 false true 1187000000 1187 false false No definition available. No authoritative reference available. true 275 Long-term debt 2 us-gaap_LongTermDebtAndCapitalLeaseObligations us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1269000000 1269 false false 2 false true 1270000000 1270 false false No definition available. No authoritative reference available. false 276 Deferred credits and other liabilities: 2 sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 278 Customer advances for construction 2 us-gaap_CustomerAdvancesForConstruction us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 132000000 132 false false 2 false true 131000000 131 false false No definition available. No authoritative reference available. false 279 Pension and other postretirement benefit obligations, net of plan assets 2 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 842000000 842 false false 2 false true 823000000 823 false false No definition available. No authoritative reference available. false 280 Deferred income taxes 2 us-gaap_DeferredTaxLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 207000000 207 false false 2 false true 167000000 167 false false No definition available. No authoritative reference available. false 281 Deferred investment tax credits 2 us-gaap_AccumulatedDeferredInvestmentTaxCredit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 29000000 29 false false 2 false true 30000000 30 false false No definition available. No authoritative reference available. false 282 Regulatory liabilities arising from removal obligations 2 sre_RegulatoryLiabilitiesArisingFromRemovalObligations sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 1230000000 1230 false false 2 false true 1218000000 1218 false false No definition available. No authoritative reference available. false 283 Asset retirement obligations 2 us-gaap_AssetRetirementObligationsNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 599000000 599 false false 2 false true 581000000 581 false false No definition available. No authoritative reference available. false 284 Deferred taxes refundable in rates 2 sre_DeferredTaxesRefundableInRates sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 203000000 203 false false 2 false true 214000000 214 false false No definition available. No authoritative reference available. false 287 Deferred credits and other 2 us-gaap_OtherLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 239000000 239 false false 2 false true 240000000 240 false false No definition available. No authoritative reference available. false 288 Total deferred credits and other liabilities 2 sre_TotalDeferredCreditsAndOtherLiabilities sre false credit instant monetary No definition available. false false false false false false false false false 1 false true 3481000000 3481 false false 2 false true 3404000000 3404 false false No definition available. No authoritative reference available. true 290 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 291 Preferred Stock 2 us-gaap_PreferredStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 22000000 22 false false 2 false true 22000000 22 false false No definition available. No authoritative reference available. false 292 Common Stock 2 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 866000000 866 false false 2 false true 866000000 866 false false No definition available. No authoritative reference available. false 293 Retained earnings 2 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 754000000 754 false false 2 false true 630000000 630 false false No definition available. No authoritative reference available. false 295 Accumulated other comprehensive income (loss) 2 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -26000000 -26 false false 2 false true -28000000 -28 false false No definition available. No authoritative reference available. false 296 Total shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1616000000 1616 false false 2 false true 1490000000 1490 false false No definition available. No authoritative reference available. true 299 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1616000000 1616 false false 2 false true 1490000000 1490 false false No definition available. No authoritative reference available. true 300 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 true true 7434000000 7434 false false 2 true true 7351000000 7351 false false No definition available. No authoritative reference available. true 1 As adjusted for the retrospective adoption of SFAS 160 (ASC 810). false 2 237 false Millions UnKnown UnKnown false true