1.0.0.3 true CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Share data in Thousands false 1 $ true false false false Sempra Energy Consolidated 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 Sempra Energy Consolidated 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 3 $ true false false false Sempra Energy Consolidated 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 4 $ true false false false Sempra Energy Consolidated 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. No authoritative reference available. false 2 REVENUES 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 3 Sempra Utilities 2 us-gaap_RegulatedOperatingRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 1316000000 1316 false false 2 true true 1887000000 1887 [1] false false 3 true true 2958000000 2958 false false 4 true true 4177000000 4177 [1] false false No definition available. No authoritative reference available. false 4 Sempra Global and parent 2 us-gaap_UnregulatedOperatingRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 373000000 373 false false 2 false true 616000000 616 [1] false false 3 false true 839000000 839 false false 4 false true 1596000000 1596 [1] false false No definition available. No authoritative reference available. false 5 Total revenues 2 us-gaap_RegulatedAndUnregulatedOperatingRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 1689000000 1689 false false 2 false true 2503000000 2503 [1] false false 3 false true 3797000000 3797 false false 4 false true 5773000000 5773 [1] false false No definition available. No authoritative reference available. true 10 Sempra Utilities: 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 11 Cost of natural gas 2 sre_RegulatedCostOfNaturalGas sre false debit duration monetary No definition available. false false false false false false false false false 1 false true -249000000 -249 false false 2 false true -784000000 -784 [1] false false 3 false true -789000000 -789 false false 4 false true -2019000000 -2019 [1] false false No definition available. No authoritative reference available. false 12 Cost of electric fuel and purchased power 2 us-gaap_CostOfDomesticRegulatedElectric us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -129000000 -129 false false 2 false true -220000000 -220 [1] false false 3 false true -300000000 -300 false false 4 false true -383000000 -383 [1] false false No definition available. No authoritative reference available. false 13 Sempra Global and parent: 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 14 Cost of natural gas, electric fuel and purchased power 2 sre_CostOfNaturalGasElectricFuelAndPurchasedPower sre false debit duration monetary No definition available. false false false false false false false false false 1 false true -187000000 -187 false false 2 false true -513000000 -513 [1] false false 3 false true -455000000 -455 false false 4 false true -922000000 -922 [1] false false No definition available. No authoritative reference available. false 15 Other cost of sales 2 us-gaap_GasGatheringTransportationMarketingAndProcessingCosts us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -16000000 -16 false false 2 false true -17000000 -17 [1] false false 3 false true -33000000 -33 false false 4 false true -153000000 -153 [1] false false No definition available. No authoritative reference available. false 16 Operation and maintenance 2 us-gaap_OtherCostAndExpenseOperating us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -589000000 -589 false false 2 false true -549000000 -549 [1] false false 3 false true -1105000000 -1105 false false 4 false true -1252000000 -1252 [1] false false No definition available. No authoritative reference available. false 17 Depreciation and amortization 2 us-gaap_DepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -189000000 -189 false false 2 false true -171000000 -171 [1] false false 3 false true -372000000 -372 false false 4 false true -346000000 -346 [1] false false No definition available. No authoritative reference available. false 18 Franchise fees and other taxes 2 us-gaap_TaxesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -69000000 -69 false false 2 false true -71000000 -71 [1] false false 3 false true -151000000 -151 false false 4 false true -154000000 -154 [1] false false No definition available. No authoritative reference available. false 19 Gains on sale of assets 2 us-gaap_GainLossOnDispositionOfAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 3000000 3 false false 2 false true 109000000 109 [1] false false 3 false true 3000000 3 false false 4 false true 114000000 114 [1] false false No definition available. No authoritative reference available. false 20 Write-off of long-lived assets 2 us-gaap_LossContingencyLossInPeriod us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -132000000 -132 false false 2 false true 0 0 [1] false false 3 false true -132000000 -132 false false 4 false true 0 0 [1] false false No definition available. No authoritative reference available. false 29 Equity earnings (losses): 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 30 RBS Sempra Commodities LLP 2 sre_EquityEarningsLossesFromJointVenture sre false credit duration monetary No definition available. false false false false false false false false false 1 false true 126000000 126 false false 2 false true 146000000 146 [1] false false 3 false true 279000000 279 false false 4 false true 146000000 146 [1] false false No definition available. No authoritative reference available. false 31 Other 2 us-gaap_IncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 2000000 2 false false 2 false true 9000000 9 [1] false false 3 false true 9000000 9 false false 4 false true 15000000 15 [1] false false No definition available. No authoritative reference available. false 32 Other income (expense), net 2 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 70000000 70 false false 2 false true 32000000 32 [1] false false 3 false true 73000000 73 false false 4 false true 51000000 51 [1] false false No definition available. No authoritative reference available. false 33 Interest income 2 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 5000000 5 false false 2 false true 10000000 10 [1] false false 3 false true 11000000 11 false false 4 false true 24000000 24 [1] false false No definition available. No authoritative reference available. false 34 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -79000000 -79 false false 2 false true -38000000 -38 [1] false false 3 false true -161000000 -161 false false 4 false true -98000000 -98 [1] false false No definition available. No authoritative reference available. false 35 Income before income taxes and equity earnings of certain unconsolidated subsidiaries 2 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 256000000 256 false false 2 false true 446000000 446 [1] false false 3 false true 674000000 674 false false 4 false true 796000000 796 [1] false false No definition available. No authoritative reference available. true 36 Income tax expense 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -90000000 -90 false false 2 false true -202000000 -202 [1] false false 3 false true -199000000 -199 false false 4 false true -329000000 -329 [1] false false No definition available. No authoritative reference available. false 37 Equity earnings, net of income tax 2 sre_IncomeLossFromEquityMethodInvestmentsNetOfTax sre false credit duration monetary No definition available. false false false false false false false false false 1 false true 23000000 23 false false 2 false true 18000000 18 [1] false false 3 false true 39000000 39 false false 4 false true 39000000 39 [1] false false No definition available. No authoritative reference available. false 38 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 189000000 189 false false 2 false true 262000000 262 [1] false false 3 false true 514000000 514 false false 4 false true 506000000 506 [1] false false No definition available. No authoritative reference available. true 39 Earnings attributable to noncontrolling interests 2 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 12000000 12 false false 2 false true -15000000 -15 [1] false false 3 false true 5000000 5 false false 4 false true -15000000 -15 [1] false false No definition available. No authoritative reference available. false 40 Preferred dividends of subsidiaries 2 sre_PreferredStockDividendsOfSubsidiaries sre false debit duration monetary No definition available. false false false false false false false false false 1 false true -3000000 -3 false false 2 false true -3000000 -3 [1] false false 3 false true -5000000 -5 false false 4 false true -5000000 -5 [1] false false No definition available. No authoritative reference available. false 41 Earnings 2 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 198000000 198 false false 2 false true 244000000 244 [1] false false 3 false true 514000000 514 false false 4 false true 486000000 486 [1] false false No definition available. No authoritative reference available. true 44 Basic earnings per share: 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 45 Basic earnings per common share 2 us-gaap_EarningsPerShareBasic us-gaap true na duration decimal No definition available. false false false false false false false false false 1 false true 0.82 0.82 false false 2 false true 0.99 0.99 [1] false false 3 false true 2.12 2.12 false false 4 false true 1.93 1.93 [1] false false No definition available. No authoritative reference available. false 46 Basic earnings per share, weighted-average number of shares outstanding (thousands) 2 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic us-gaap true na duration shares No definition available. false false false false false false false false false 1 false true 242718000 242718 false false 2 false true 245576000 245576 [1] false false 3 false true 242245000 242245 false false 4 false true 252100000 252100 [1] false false No definition available. No authoritative reference available. false 47 Diluted earnings per share: 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 48 Diluted earnings per common share 2 us-gaap_EarningsPerShareDiluted us-gaap true na duration decimal No definition available. false false false false false false false false false 1 false true 0.80 0.80 false false 2 false true 0.98 0.98 [1] false false 3 false true 2.09 2.09 false false 4 false true 1.90 1.90 [1] false false No definition available. No authoritative reference available. false 49 Diluted earnings per share, weighted-average number of shares outstanding (thousands) 2 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding us-gaap true na duration shares No definition available. false false false false false false false false false 1 false true 247090000 247090 false false 2 false true 249677000 249677 [1] false false 3 false true 246039000 246039 false false 4 false true 256169000 256169 [1] false false No definition available. No authoritative reference available. false 50 Dividends declared per share of common stock 2 us-gaap_CommonStockDividendsPerShareDeclared us-gaap true na duration decimal No definition available. false false false false false false false false false 1 false true 0.39 0.39 false false 2 false true 0.35 0.35 [1] false false 3 false true 0.78 0.78 false false 4 false true 0.67 0.67 [1] false false No definition available. No authoritative reference available. false 51 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. No authoritative reference available. false 56 Utility operating revenues 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 57 Electric 2 us-gaap_ElectricUtilityRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 535000000 535 false false 2 false true 583000000 583 [1] false false 3 false true 1088000000 1088 false false 4 false true 1084000000 1084 [1] false false No definition available. No authoritative reference available. false 58 Natural gas 2 us-gaap_GasDomesticRegulatedRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 96000000 96 false false 2 false true 171000000 171 [1] false false 3 false true 275000000 275 false false 4 false true 416000000 416 [1] false false No definition available. No authoritative reference available. false 59 Total utility operating revenues 2 us-gaap_UtilityRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 631000000 631 false false 2 false true 754000000 754 [1] false false 3 false true 1363000000 1363 false false 4 false true 1500000000 1500 [1] false false No definition available. No authoritative reference available. true 71 Utility operating expenses 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 72 Utility cost of natural gas 2 us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 37000000 37 false false 2 false true 113000000 113 [1] false false 3 false true 124000000 124 false false 4 false true 265000000 265 [1] false false No definition available. No authoritative reference available. false 73 Utility cost of electric fuel and purchased power 2 sre_UtilitiesCostOfElectricFuelAndPurchasedPower sre false debit duration monetary No definition available. false false false false false false false false false 1 false true 129000000 129 false false 2 false true 220000000 220 [1] false false 3 false true 300000000 300 false false 4 false true 383000000 383 [1] false false No definition available. No authoritative reference available. false 74 Utility operation and maintenance 2 us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 232000000 232 false false 2 false true 195000000 195 [1] false false 3 false true 413000000 413 false false 4 false true 382000000 382 [1] false false No definition available. No authoritative reference available. false 75 Utility depreciation and amortization 2 us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 81000000 81 false false 2 false true 78000000 78 [1] false false 3 false true 158000000 158 false false 4 false true 155000000 155 [1] false false No definition available. No authoritative reference available. false 76 Utility franchise fees and other taxes 2 us-gaap_UtilitiesOperatingExpenseTaxes us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 39000000 39 false false 2 false true 36000000 36 [1] false false 3 false true 80000000 80 false false 4 false true 74000000 74 [1] false false No definition available. No authoritative reference available. false 77 Total utility operating expenses 2 us-gaap_UtilitiesOperatingExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 518000000 518 false false 2 false true 642000000 642 [1] false false 3 false true 1075000000 1075 false false 4 false true 1259000000 1259 [1] false false No definition available. No authoritative reference available. true 78 Utility operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 113000000 113 false false 2 false true 112000000 112 [1] false false 3 false true 288000000 288 false false 4 false true 241000000 241 [1] false false No definition available. No authoritative reference available. true 79 Equity earnings (losses): 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 82 Other income (expense), net 2 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 27000000 27 false false 2 false true 20000000 20 [1] false false 3 false true 44000000 44 false false 4 false true 23000000 23 [1] false false No definition available. No authoritative reference available. false 83 Interest income 2 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 2000000 2 [1] false false 3 false true 0 0 false false 4 false true 4000000 4 [1] false false No definition available. No authoritative reference available. false 84 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -21000000 -21 false false 2 false true -22000000 -22 [1] false false 3 false true -46000000 -46 false false 4 false true -49000000 -49 [1] false false No definition available. No authoritative reference available. false 85 Income before income taxes and equity earnings of certain unconsolidated subsidiaries 2 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 119000000 119 false false 2 false true 112000000 112 [1] false false 3 false true 286000000 286 false false 4 false true 219000000 219 [1] false false No definition available. No authoritative reference available. true 86 Income tax expense 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -28000000 -28 false false 2 false true -35000000 -35 [1] false false 3 false true -88000000 -88 false false 4 false true -67000000 -67 [1] false false No definition available. No authoritative reference available. false 88 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 91000000 91 false false 2 false true 77000000 77 [1] false false 3 false true 198000000 198 false false 4 false true 152000000 152 [1] false false No definition available. No authoritative reference available. true 89 Earnings attributable to noncontrolling interests 2 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -20000000 -20 false false 2 false true -15000000 -15 [1] false false 3 false true -27000000 -27 false false 4 false true -15000000 -15 [1] false false No definition available. No authoritative reference available. false 91 Earnings 2 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 71000000 71 false false 2 false true 62000000 62 [1] false false 3 false true 171000000 171 false false 4 false true 137000000 137 [1] false false No definition available. No authoritative reference available. true 92 Preferred dividend requirements 2 us-gaap_PreferredStockDividends us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -1000000 -1 false false 2 false true -1000000 -1 [1] false false 3 false true -2000000 -2 false false 4 false true -2000000 -2 [1] false false No definition available. No authoritative reference available. false 93 Earnings attributable to common shares 2 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 70000000 70 false false 2 false true 61000000 61 [1] false false 3 false true 169000000 169 false false 4 false true 135000000 135 [1] false false No definition available. No authoritative reference available. true 101 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. No authoritative reference available. false 106 Utility operating revenues 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 109 Total utility operating revenues 2 us-gaap_UtilityRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 694000000 694 false false 2 false true 1143000000 1143 [1] false false 3 false true 1614000000 1614 false false 4 false true 2699000000 2699 [1] false false No definition available. No authoritative reference available. true 121 Utility operating expenses 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 122 Utility cost of natural gas 2 us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 214000000 214 false false 2 false true 673000000 673 [1] false false 3 false true 669000000 669 false false 4 false true 1760000000 1760 [1] false false No definition available. No authoritative reference available. false 124 Utility operation and maintenance 2 us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 266000000 266 false false 2 false true 265000000 265 [1] false false 3 false true 517000000 517 false false 4 false true 515000000 515 [1] false false No definition available. No authoritative reference available. false 125 Utility depreciation and amortization 2 us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 75000000 75 false false 2 false true 71000000 71 [1] false false 3 false true 147000000 147 false false 4 false true 142000000 142 [1] false false No definition available. No authoritative reference available. false 126 Utility franchise fees and other taxes 2 us-gaap_UtilitiesOperatingExpenseTaxes us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 24000000 24 false false 2 false true 32000000 32 [1] false false 3 false true 56000000 56 false false 4 false true 71000000 71 [1] false false No definition available. No authoritative reference available. false 127 Total utility operating expenses 2 us-gaap_UtilitiesOperatingExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 579000000 579 false false 2 false true 1041000000 1041 [1] false false 3 false true 1389000000 1389 false false 4 false true 2488000000 2488 [1] false false No definition available. No authoritative reference available. true 128 Utility operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 115000000 115 false false 2 false true 102000000 102 [1] false false 3 false true 225000000 225 false false 4 false true 211000000 211 [1] false false No definition available. No authoritative reference available. true 129 Equity earnings (losses): 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 132 Other income (expense), net 2 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 4000000 4 false false 2 false true 1000000 1 [1] false false 3 false true 5000000 5 false false 4 false true 1000000 1 [1] false false No definition available. No authoritative reference available. false 133 Interest income 2 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 2000000 2 false false 2 false true 6000000 6 [1] false false 3 false true 3000000 3 false false 4 false true 13000000 13 [1] false false No definition available. No authoritative reference available. false 134 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -18000000 -18 false false 2 false true -15000000 -15 [1] false false 3 false true -35000000 -35 false false 4 false true -32000000 -32 [1] false false No definition available. No authoritative reference available. false 135 Income before income taxes and equity earnings of certain unconsolidated subsidiaries 2 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 103000000 103 false false 2 false true 94000000 94 [1] false false 3 false true 198000000 198 false false 4 false true 193000000 193 [1] false false No definition available. No authoritative reference available. true 136 Income tax expense 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -40000000 -40 false false 2 false true -36000000 -36 [1] false false 3 false true -76000000 -76 false false 4 false true -77000000 -77 [1] false false No definition available. No authoritative reference available. false 138 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 63000000 63 false false 2 false true 58000000 58 [1] false false 3 false true 122000000 122 false false 4 false true 116000000 116 [1] false false No definition available. No authoritative reference available. true 140 Preferred dividends of subsidiaries 2 sre_PreferredStockDividendsOfSubsidiaries sre false debit duration monetary No definition available. false false false false false false false false false 1 false true -1000000 -1 false false 2 false true -1000000 -1 [1] false false 3 false true -1000000 -1 false false 4 false true -1000000 -1 [1] false false No definition available. No authoritative reference available. false 141 Earnings 2 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 62000000 62 false false 2 false true 57000000 57 [1] false false 3 false true 121000000 121 false false 4 false true 115000000 115 [1] false false No definition available. No authoritative reference available. true 142 Preferred dividend requirements 2 us-gaap_PreferredStockDividends us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -1000000 -1 false false 2 false true -1000000 -1 [1] false false 3 false true -2000000 -2 false false 4 false true -2000000 -2 [1] false false No definition available. No authoritative reference available. false 143 Earnings attributable to common shares 2 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 61000000 61 false false 2 false true 56000000 56 [1] false false 3 false true 119000000 119 false false 4 false true 113000000 113 [1] false false No definition available. No authoritative reference available. true 151 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. No authoritative reference available. false 156 Utility operating revenues 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 159 Total utility operating revenues 2 us-gaap_UtilityRevenue us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 694000000 694 false false 2 false true 1143000000 1143 false false 3 false true 1614000000 1614 false false 4 false true 2699000000 2699 false false No definition available. No authoritative reference available. true 171 Utility operating expenses 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 172 Utility cost of natural gas 2 us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 214000000 214 false false 2 false true 673000000 673 false false 3 false true 669000000 669 false false 4 false true 1760000000 1760 false false No definition available. No authoritative reference available. false 174 Utility operation and maintenance 2 us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 265000000 265 false false 2 false true 266000000 266 false false 3 false true 516000000 516 false false 4 false true 515000000 515 false false No definition available. No authoritative reference available. false 175 Utility depreciation and amortization 2 us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 75000000 75 false false 2 false true 71000000 71 false false 3 false true 147000000 147 false false 4 false true 142000000 142 false false No definition available. No authoritative reference available. false 176 Utility franchise fees and other taxes 2 us-gaap_UtilitiesOperatingExpenseTaxes us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 24000000 24 false false 2 false true 32000000 32 false false 3 false true 56000000 56 false false 4 false true 71000000 71 false false No definition available. No authoritative reference available. false 177 Total utility operating expenses 2 us-gaap_UtilitiesOperatingExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 578000000 578 false false 2 false true 1042000000 1042 false false 3 false true 1388000000 1388 false false 4 false true 2488000000 2488 false false No definition available. No authoritative reference available. true 178 Utility operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 116000000 116 false false 2 false true 101000000 101 false false 3 false true 226000000 226 false false 4 false true 211000000 211 false false No definition available. No authoritative reference available. true 179 Equity earnings (losses): 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 3 false false 0 0 false false 4 false false 0 0 false false No definition available. false 182 Other income (expense), net 2 us-gaap_NonoperatingIncomeExpense us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 4000000 4 false false 2 false true 2000000 2 false false 3 false true 5000000 5 false false 4 false true 2000000 2 false false No definition available. No authoritative reference available. false 183 Interest income 2 us-gaap_InvestmentIncomeInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true 4000000 4 false false 3 false true 2000000 2 false false 4 false true 7000000 7 false false No definition available. No authoritative reference available. false 184 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -18000000 -18 false false 2 false true -14000000 -14 false false 3 false true -35000000 -35 false false 4 false true -30000000 -30 false false No definition available. No authoritative reference available. false 185 Income before income taxes and equity earnings of certain unconsolidated subsidiaries 2 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 103000000 103 false false 2 false true 93000000 93 false false 3 false true 198000000 198 false false 4 false true 190000000 190 false false No definition available. No authoritative reference available. true 186 Income tax expense 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -37000000 -37 false false 2 false true -36000000 -36 false false 3 false true -73000000 -73 false false 4 false true -76000000 -76 false false No definition available. No authoritative reference available. false 188 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 66000000 66 false false 2 false true 57000000 57 false false 3 false true 125000000 125 false false 4 false true 114000000 114 false false No definition available. No authoritative reference available. true 191 Earnings 2 us-gaap_NetIncomeLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 66000000 66 false false 2 false true 57000000 57 false false 3 false true 125000000 125 false false 4 false true 114000000 114 false false No definition available. No authoritative reference available. true 192 Preferred dividend requirements 2 us-gaap_PreferredStockDividends us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -1000000 -1 false false 2 false true -1000000 -1 false false 3 false true -1000000 -1 false false 4 false true -1000000 -1 false false No definition available. No authoritative reference available. false 193 Earnings attributable to common shares 2 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 65000000 65 false false 2 true true 56000000 56 false false 3 true true 124000000 124 false false 4 true true 113000000 113 false false No definition available. No authoritative reference available. true 1 As adjusted for the retrospective adoption of SFAS 160 (ASC 810). false 4 101 false Millions Thousands UnKnown false true