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Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Asset Retirement Obligation -URI http://asc.fasb.org/extlink&oid=6505190 false2Asset Retirement Obligations, Balance as of June 3021false 4sre_AssetRetirementObligationsIncreaseInAssetServiceLivesBeginningRatesre_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.04000.0400falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepureNo authoritative reference available.No definition available.false0Asset Retirement Obligations, Increase in Asset Service Lives, Beginning Rate22false 4sre_AssetRetirementObligationsIncreaseInAssetServiceLivesEndingRatesre_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.06000.0600falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepureNo authoritative reference available.No definition available.false0Asset Retirement Obligations, Increase in Asset Service Lives, Ending Rate1The current portions of the obligations are included in Other Current Liabilities on the Condensed Consolidated Balance Sheets.2The decrease in asset retirement obligations in 2013 at SDG&E is due to revised estimates related to the 2012 General Rate Case. These revisions included increases in asset service lives ranging from 2 percent to 7 percent, and lower estimated cost of removal.3The decrease in asset retirement obligations in 2013 at SoCalGas is due to revised estimates related to the 2012 General Rate Case, including increases in asset service lives ranging from 4 percent to 6 percent. The decreases in the obligations were partially offset by a higher estimated cost of removal.falseOTHER FINANCIAL DATA - ASSET RETIREMENT OBLIGATIONS (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.sempra.com/role/OTHERFINANCIALDATAASSETRETIREMENTOBLIGATIONSDetails222