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 1424000000 1424 false false 2 true true 2013000000 2013 [1] false false 3 true true 4382000000 4382 false false 4 true true 6190000000 6190 [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 429000000 429 false false 2 false true 679000000 679 [1] false false 3 false true 1268000000 1268 false false 4 false true 2275000000 2275 [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 1853000000 1853 false false 2 false true 2692000000 2692 [1] false false 3 false true 5650000000 5650 false false 4 false true 8465000000 8465 [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 -208000000 -208 false false 2 false true -689000000 -689 [1] false false 3 false true -997000000 -997 false false 4 false true -2708000000 -2708 [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 -208000000 -208 false false 2 false true -311000000 -311 [1] false false 3 false true -508000000 -508 false false 4 false true -694000000 -694 [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 -220000000 -220 false false 2 false true -431000000 -431 [1] false false 3 false true -675000000 -675 false false 4 false true -1353000000 -1353 [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 -19000000 -19 false false 2 false true -15000000 -15 [1] false false 3 false true -52000000 -52 false false 4 false true -168000000 -168 [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 -571000000 -571 false false 2 false true -564000000 -564 [1] false false 3 false true -1676000000 -1676 false false 4 false true -1816000000 -1816 [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 -196000000 -196 false false 2 false true -162000000 -162 [1] false false 3 false true -568000000 -568 false false 4 false true -508000000 -508 [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 -77000000 -77 false false 2 false true -76000000 -76 [1] false false 3 false true -228000000 -228 false false 4 false true -230000000 -230 [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 0 0 false false 2 false true 0 0 [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 0 0 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 30 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 31 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 105000000 105 false false 2 false true -4000000 -4 [1] false false 3 false true 384000000 384 false false 4 false true 142000000 142 [1] false false No definition available. No authoritative reference available. false 32 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 18000000 18 false false 2 false true 14000000 14 [1] false false 3 false true 27000000 27 false false 4 false true 29000000 29 [1] false false No definition available. No authoritative reference available. false 33 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 24000000 24 false false 2 false true -21000000 -21 [1] false false 3 false true 97000000 97 false false 4 false true 30000000 30 [1] false false No definition available. No authoritative reference available. false 34 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 12000000 12 [1] false false 3 false true 16000000 16 false false 4 false true 36000000 36 [1] false false No definition available. No authoritative reference available. false 35 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 -96000000 -96 false false 2 false true -67000000 -67 [1] false false 3 false true -257000000 -257 false false 4 false true -165000000 -165 [1] false false No definition available. No authoritative reference available. false 36 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 410000000 410 false false 2 false true 378000000 378 [1] false false 3 false true 1084000000 1084 false false 4 false true 1174000000 1174 [1] false false No definition available. No authoritative reference available. true 37 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 -128000000 -128 false false 2 false true -94000000 -94 [1] false false 3 false true -327000000 -327 false false 4 false true -423000000 -423 [1] false false No definition available. No authoritative reference available. false 38 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 20000000 20 false false 2 false true 18000000 18 [1] false false 3 false true 59000000 59 false false 4 false true 57000000 57 [1] false false No definition available. No authoritative reference available. false 39 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 302000000 302 false false 2 false true 302000000 302 [1] false false 3 false true 816000000 816 false false 4 false true 808000000 808 [1] false false No definition available. No authoritative reference available. true 40 (Earnings) losses 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 17000000 17 false false 2 false true 8000000 8 [1] false false 3 false true 22000000 22 false false 4 false true -7000000 -7 [1] false false No definition available. No authoritative reference available. false 41 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 -2000000 -2 false false 2 false true -2000000 -2 [1] false false 3 false true -7000000 -7 false false 4 false true -7000000 -7 [1] false false No definition available. No authoritative reference available. false 42 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 317000000 317 false false 2 false true 308000000 308 [1] false false 3 false true 831000000 831 false false 4 false true 794000000 794 [1] false false No definition available. No authoritative reference available. true 45 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 46 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 1.30 1.30 false false 2 false true 1.26 1.26 [1] false false 3 false true 3.42 3.42 false false 4 false true 3.18 3.18 [1] false false No definition available. No authoritative reference available. false 47 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 243925000 243925 false false 2 false true 243793000 243793 [1] false false 3 false true 242806000 242806 false false 4 false true 249311000 249311 [1] false false No definition available. No authoritative reference available. false 48 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 49 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 1.27 1.27 false false 2 false true 1.24 1.24 [1] false false 3 false true 3.37 3.37 false false 4 false true 3.13 3.13 [1] false false No definition available. No authoritative reference available. false 50 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 248461000 248461 false false 2 false true 247904000 247904 [1] false false 3 false true 246875000 246875 false false 4 false true 253407000 253407 [1] false false No definition available. No authoritative reference available. false 51 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 1.17 1.17 false false 4 false true 1.02 1.02 [1] false false No definition available. No authoritative reference available. false 52 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 57 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 58 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 695000000 695 false false 2 false true 817000000 817 [1] false false 3 false true 1783000000 1783 false false 4 false true 1901000000 1901 [1] false false No definition available. No authoritative reference available. false 59 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 78000000 78 false false 2 false true 132000000 132 [1] false false 3 false true 353000000 353 false false 4 false true 548000000 548 [1] false false No definition available. No authoritative reference available. false 60 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 773000000 773 false false 2 false true 949000000 949 [1] false false 3 false true 2136000000 2136 false false 4 false true 2449000000 2449 [1] false false No definition available. No authoritative reference available. true 72 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 73 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 30000000 30 false false 2 false true 84000000 84 [1] false false 3 false true 154000000 154 false false 4 false true 349000000 349 [1] false false No definition available. No authoritative reference available. false 74 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 208000000 208 false false 2 false true 311000000 311 [1] false false 3 false true 508000000 508 false false 4 false true 694000000 694 [1] false false No definition available. No authoritative reference available. false 75 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 234000000 234 false false 2 false true 222000000 222 [1] false false 3 false true 655000000 655 false false 4 false true 595000000 595 [1] false false No definition available. No authoritative reference available. false 76 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 68000000 68 [1] false false 3 false true 239000000 239 false false 4 false true 223000000 223 [1] false false No definition available. No authoritative reference available. false 77 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 46000000 46 false false 2 false true 43000000 43 [1] false false 3 false true 126000000 126 false false 4 false true 117000000 117 [1] false false No definition available. No authoritative reference available. false 78 Utility litigation expense 2 sre_UtilitiesLitigationExpense sre false debit duration monetary No definition available. false false false false false false false false false 1 false true 2000000 2 false false 2 false true 29000000 29 [1] false false 3 false true -6000000 -6 false false 4 false true 38000000 38 [1] false false No definition available. No authoritative reference available. false 79 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 601000000 601 false false 2 false true 757000000 757 [1] false false 3 false true 1676000000 1676 false false 4 false true 2016000000 2016 [1] false false No definition available. No authoritative reference available. true 80 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 172000000 172 false false 2 false true 192000000 192 [1] false false 3 false true 460000000 460 false false 4 false true 433000000 433 [1] false false No definition available. No authoritative reference available. true 81 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 84 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 1000000 1 false false 2 false true 3000000 3 [1] false false 3 false true 45000000 45 false false 4 false true 26000000 26 [1] false false No definition available. No authoritative reference available. false 85 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 1000000 1 [1] false false 3 false true 1000000 1 false false 4 false true 5000000 5 [1] false false No definition available. No authoritative reference available. false 86 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 -29000000 -29 false false 2 false true -24000000 -24 [1] false false 3 false true -75000000 -75 false false 4 false true -73000000 -73 [1] false false No definition available. No authoritative reference available. false 87 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 145000000 145 false false 2 false true 172000000 172 [1] false false 3 false true 431000000 431 false false 4 false true 391000000 391 [1] false false No definition available. No authoritative reference available. true 88 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 -53000000 -53 false false 2 false true -54000000 -54 [1] false false 3 false true -141000000 -141 false false 4 false true -121000000 -121 [1] false false No definition available. No authoritative reference available. false 90 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 92000000 92 false false 2 false true 118000000 118 [1] false false 3 false true 290000000 290 false false 4 false true 270000000 270 [1] false false No definition available. No authoritative reference available. true 91 (Earnings) losses 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 18000000 18 false false 2 false true 7000000 7 [1] false false 3 false true -9000000 -9 false false 4 false true -8000000 -8 [1] false false No definition available. No authoritative reference available. false 93 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 110000000 110 false false 2 false true 125000000 125 [1] false false 3 false true 281000000 281 false false 4 false true 262000000 262 [1] false false No definition available. No authoritative reference available. true 94 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 -2000000 -2 false false 2 false true -2000000 -2 [1] false false 3 false true -4000000 -4 false false 4 false true -4000000 -4 [1] false false No definition available. No authoritative reference available. false 95 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 108000000 108 false false 2 false true 123000000 123 [1] false false 3 false true 277000000 277 false false 4 false true 258000000 258 [1] false false No definition available. No authoritative reference available. true 103 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 108 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 111 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 662000000 662 false false 2 false true 1077000000 1077 [1] false false 3 false true 2276000000 2276 false false 4 false true 3776000000 3776 [1] false false No definition available. No authoritative reference available. true 123 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 124 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 180000000 180 false false 2 false true 609000000 609 [1] false false 3 false true 849000000 849 false false 4 false true 2369000000 2369 [1] false false No definition available. No authoritative reference available. false 126 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 249000000 249 false false 2 false true 241000000 241 [1] false false 3 false true 766000000 766 false false 4 false true 756000000 756 [1] false false No definition available. No authoritative reference available. false 127 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 73000000 73 false false 2 false true 67000000 67 [1] false false 3 false true 220000000 220 false false 4 false true 209000000 209 [1] false false No definition available. No authoritative reference available. false 128 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 25000000 25 false false 2 false true 29000000 29 [1] false false 3 false true 81000000 81 false false 4 false true 100000000 100 [1] false false No definition available. No authoritative reference available. false 130 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 527000000 527 false false 2 false true 946000000 946 [1] false false 3 false true 1916000000 1916 false false 4 false true 3434000000 3434 [1] false false No definition available. No authoritative reference available. true 131 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 135000000 135 false false 2 false true 131000000 131 [1] false false 3 false true 360000000 360 false false 4 false true 342000000 342 [1] false false No definition available. No authoritative reference available. true 132 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 135 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 1000000 1 false false 4 false true 2000000 2 [1] false false No definition available. No authoritative reference available. false 136 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 5000000 5 [1] false false 3 false true 3000000 3 false false 4 false true 18000000 18 [1] false false No definition available. No authoritative reference available. false 137 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 -17000000 -17 false false 2 false true -15000000 -15 [1] false false 3 false true -52000000 -52 false false 4 false true -47000000 -47 [1] false false No definition available. No authoritative reference available. false 138 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 114000000 114 false false 2 false true 122000000 122 [1] false false 3 false true 312000000 312 false false 4 false true 315000000 315 [1] false false No definition available. No authoritative reference available. true 139 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 -41000000 -41 false false 2 false true -42000000 -42 [1] false false 3 false true -117000000 -117 false false 4 false true -119000000 -119 [1] false false No definition available. No authoritative reference available. false 141 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 73000000 73 false false 2 false true 80000000 80 [1] false false 3 false true 195000000 195 false false 4 false true 196000000 196 [1] false false No definition available. No authoritative reference available. true 143 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 0 0 false false 2 false true 0 0 [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 144 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 73000000 73 false false 2 false true 80000000 80 [1] false false 3 false true 194000000 194 false false 4 false true 195000000 195 [1] false false No definition available. No authoritative reference available. true 145 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 -3000000 -3 false false 4 false true -3000000 -3 [1] false false No definition available. No authoritative reference available. false 146 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 72000000 72 false false 2 false true 79000000 79 [1] false false 3 false true 191000000 191 false false 4 false true 192000000 192 [1] false false No definition available. No authoritative reference available. true 154 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 159 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 162 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 662000000 662 false false 2 false true 1077000000 1077 false false 3 false true 2276000000 2276 false false 4 false true 3776000000 3776 false false No definition available. No authoritative reference available. true 174 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 175 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 180000000 180 false false 2 false true 609000000 609 false false 3 false true 849000000 849 false false 4 false true 2369000000 2369 false false No definition available. No authoritative reference available. false 177 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 252000000 252 false false 2 false true 241000000 241 false false 3 false true 768000000 768 false false 4 false true 756000000 756 false false No definition available. No authoritative reference available. false 178 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 73000000 73 false false 2 false true 67000000 67 false false 3 false true 220000000 220 false false 4 false true 209000000 209 false false No definition available. No authoritative reference available. false 179 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 25000000 25 false false 2 false true 29000000 29 false false 3 false true 81000000 81 false false 4 false true 100000000 100 false false No definition available. No authoritative reference available. false 181 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 530000000 530 false false 2 false true 946000000 946 false false 3 false true 1918000000 1918 false false 4 false true 3434000000 3434 false false No definition available. No authoritative reference available. true 182 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 132000000 132 false false 2 false true 131000000 131 false false 3 false true 358000000 358 false false 4 false true 342000000 342 false false No definition available. No authoritative reference available. true 183 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 186 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 -1000000 -1 false false 2 false true -1000000 -1 false false 3 false true 4000000 4 false false 4 false true 1000000 1 false false No definition available. No authoritative reference available. false 187 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 2000000 2 false false 3 false true 3000000 3 false false 4 false true 9000000 9 false false No definition available. No authoritative reference available. false 188 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 -16000000 -16 false false 2 false true -14000000 -14 false false 3 false true -51000000 -51 false false 4 false true -44000000 -44 false false No definition available. No authoritative reference available. false 189 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 116000000 116 false false 2 false true 118000000 118 false false 3 false true 314000000 314 false false 4 false true 308000000 308 false false No definition available. No authoritative reference available. true 190 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 -42000000 -42 false false 2 false true -41000000 -41 false false 3 false true -115000000 -115 false false 4 false true -117000000 -117 false false No definition available. No authoritative reference available. false 192 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 74000000 74 false false 2 false true 77000000 77 false false 3 false true 199000000 199 false false 4 false true 191000000 191 false false No definition available. No authoritative reference available. true 195 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 74000000 74 false false 2 false true 77000000 77 false false 3 false true 199000000 199 false false 4 false true 191000000 191 false false No definition available. No authoritative reference available. true 196 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 0 0 false false 2 false true 0 0 false false 3 false true -1000000 -1 false false 4 false true -1000000 -1 false false No definition available. No authoritative reference available. false 197 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 74000000 74 false false 2 true true 77000000 77 false false 3 true true 198000000 198 false false 4 true true 190000000 190 false false No definition available. No authoritative reference available. true 1 As adjusted for the retrospective adoption of ASC 810 (SFAS 160). false 4 102 false Millions Thousands UnKnown false true