v2.4.1.9

DERIVATIVE FINANCIAL INSTRUMENTS (Details) | Mar. 31, 2015 | Dec. 31, 2014
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S D G E Segment [Member] |  |  |  |
Schedule Of Commodity Derivative Volumes [Line Items] |  |  |  |
Commodity derivative volumes, natural gas (in millions of million British thermal units) | 57 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SDGESegmentMember | [1] | 55 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SDGESegmentMember | [1]
Commodity derivative volumes, congestion revenue rights (in millions of megawatt hours) | 24 sre_CommodityDerivativeVolumesCongestionRevenueRights / us-gaap_StatementBusinessSegmentsAxis = sre_SDGESegmentMember | [2] | 27 sre_CommodityDerivativeVolumesCongestionRevenueRights / us-gaap_StatementBusinessSegmentsAxis = sre_SDGESegmentMember | [2]
So Cal Gas Segment [Member] |  |  |  |
Schedule Of Commodity Derivative Volumes [Line Items] |  |  |  |
Commodity derivative volumes, natural gas (in millions of million British thermal units) | 1 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SoCalGasSegmentMember | [1] | 1 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SoCalGasSegmentMember | [1]
Sempra Natural Gas Segment [Member] |  |  |  |
Schedule Of Commodity Derivative Volumes [Line Items] |  |  |  |
Commodity derivative volumes, natural gas (in millions of million British thermal units) | 7 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SempraNaturalGasSegmentMember | [1] | 29 sre_CommodityDerivativeVolumesNaturalGas / us-gaap_StatementBusinessSegmentsAxis = sre_SempraNaturalGasSegmentMember | [1]
[1] | Million British thermal units
[2] | Megawatt hours

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