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available.false2Amount Reclassified From Accumulated Other Comprehensive Income Loss52false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse34false USDtruefalse$FROM_Jan01_2013_TO_Jun30_2013_sre_LocationOnStatementOfOperationsAxis_TotalMember_sre_OtherComprehensiveIncomeComponentsAxis_InterestRateInstrumentsMemberhttp://www.sec.gov/CIK0001032208duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseTotal [Member]sre_LocationOnStatementOfOperationsAxisxbrldihttp://xbrl.org/2006/xbrldisre_TotalMembersre_LocationOnStatementOfOperationsAxisexplicitMemberfalsefalseInterest Rate Instruments [Member]sre_OtherComprehensiveIncomeComponentsAxisxbrldihttp://xbrl.org/2006/xbrldisre_InterestRateInstrumentsMembersre_OtherComprehensiveIncomeComponentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Total [Member] | Interest Rate Instruments [Member]53true 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