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No authoritative reference available. false 7 Fair value of indemnity of certain litigation and tax liabilities related to businesses purchased by RBS Sempra Commodities 2 sre_GuaranteeFairValueAtOrigin sre false credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 5000000 5000000 false false false 2 false false false false 0 0 false false false 3 false true false false 5000000 5000000 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 8 Historical percentage of earnings from North American power and natural gas trading and retail energy solutions businesses, minimum 2 sre_HistoricalPercentageEarningsFromNorthAmericanPowerAndNaturalGasTradingAndRetailEnergySolutionsBusinessesMinimum sre false na instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 40 40 false false false 2 false false false false 0 0 false false false 3 false true false false 40 40 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false us-types:percentItemType pure No definition available. No authoritative reference available. false 9 Historical percentage of earnings from North American power and natural gas trading and retail energy solutions businesses, maximum 2 sre_HistoricalPercentageEarningsFromNorthAmericanPowerAndNaturalGasTradingAndRetailEnergySolutionsBusinessesMaximum sre false na instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 60 60 false false false 2 false false false false 0 0 false false false 3 false true false false 60 60 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false us-types:percentItemType pure No definition available. No authoritative reference available. false 10 Historical percentage of earnings from North American power and natural gas trading and retail energy solutions businesses, average 2 sre_HistoricalPercentageEarningsFromNorthAmericanPowerAndNaturalGasTradingAndRetailEnergySolutionsBusinessesAverage sre false na instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 50 50 false false false 2 false false false false 0 0 false false false 3 false true false false 50 50 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false us-types:percentItemType pure No definition available. No authoritative reference available. false 11 Purchase price of businesses sold by RBS Sempra Commodities 2 sre_PurchasePriceSaleOfBusinessesByJointVenture sre false debit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1600000000 1600000000 false false false 2 false false false false 0 0 false false false 3 false true false false 1600000000 1600000000 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 12 Proceeds from sale of businesses by RBS Sempra Commodities 2 sre_ProceedsFromSaleOfBusinessesByJointVenture sre false debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1000000000 1000000000 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 13 Distributions of partnership income included in proceeds from sale of businesses by RBS Sempra Commodities 2 sre_ProceedsFromSaleOfBusinessesByJointVentureDistributableIncome sre false debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 134000000 134000000 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:monetaryItemType monetary No definition available. No authoritative reference available. false 14 Summarized Financial Information for RBS Sempra Commodities 2 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationIncomeStatementAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 15 Summarized financial information for RBS Sempra Commodities - Gross revenues and fee income 3 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetSalesOrGrossRevenue us-gaap true credit duration No definition available. false false false false false false false false false false false false 1 false true false false 188000000 188000000 false false false 2 false true false false 367000000 367000000 false false false 3 false true false false 394000000 394000000 false false false 4 false true false false 876000000 876000000 false false false 5 false false false false 0 0 true false false 6 false false false false 0 0 true false false 7 false false false false 0 0 true false false 8 false false false false 0 0 true false false xbrli:monetaryItemType monetary This item represents the disclosure of summarized financial information for unconsolidated subsidiaries and 50 percent-or-less owned entities accounted for using the equity method of accounting. If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include net sales or gross revenues. 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If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include gross profit or loss. 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If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include income or loss from continuing operations before extraordinary items and cumulative effect of a change in accounting principle. 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If investments in common stock of corporate joint ventures or other investments accounted for under the equity method are, in the aggregate, material in relation to the financial position or results of operations of an investor, it may be necessary to present summarized information as to assets of the investee, or group of investments for which combined disclosure is appropriate, either by individual financial statement caption or in groups, as appropriate. Such summarized financial information may, at a minimum, include net income or loss. 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Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term. 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