v2.4.1.9

RECENT INVESTMENT ACTIVITY 3 (Details) (USD $) In Millions, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Recent Investment Activity (Details) [Abstract] |  |  |  |
Property, plant and equipment, net | $ 291 us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent |  |  |
Inventories | 4 sre_AssetsHeldForSaleInventory |  |  |
Total assets held for sale | 295 us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent |  | 293 us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent | [1]
Liability held for sale - asset retirement obligation | (6)sre_LiabilityHeldForSaleAssetRetirementObligation | [2] |  |
Total assets held for sale, net | $ 289 sre_AssetsHeldForSaleNet |  |  |
[1] | Derived from audited financial statements.
[2] | Included in Other Current Liabilities on the Condensed Consolidated Balance Sheet.

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