2.2.0.25falsefalse010300 - Disclosure - RECENT INVESTMENT ACTIVITYtruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) $FROM_Jan01_2011_TO_Mar31_2011http://www.sec.gov/CIK0001032208duration2011-01-01T00:00:002011-03-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0sre_NotesToConsolidatedFinancialStatementsAbstractsrefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNotes to Consolidated Financial Statements [Abstract]3false0sre_RecentInvestmentActivityTextBlocksrefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00NOTE 3. RECENT INVESTMENT ACTIVITYSEMPRA PIPELINES & STORAGEIn the three months ended March 31, 2010, Sempra Pipelines & Storage contributed $65 million to Rockies Express, a joint venture to own and operate the Rockies Express Pipeline. The contribution was the last required for the construction phase of the project.On April 30, 2010, Sempra Pipelines & Storage completed the acquisition of the Mexican pipeline and natural gas infrastructure assets of El Paso Corporation for $307 million ($292 million, net of cash acquired). Proforma impacts on revenues and earnings for Sempra Energy had the acquisition occurred on January 1, 2010 were additional revenues and earnings of $2 million and $6 million, respectively, for the three months ended March 31, 2010.We provide information about Sempra Pipelines & Storage's recent investment activity in Chile and Peru in Note 12.  NOTE 3. RECENT INVESTMENT ACTIVITYSEMPRA PIPELINES & STORAGEIn the three months ended March 31, 2010, Sempra Pipelines & Storage contributed $65falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNo definition available.No authoritative reference available.falsefalseRecent Investment Activity12RECENT INVESTMENT ACTIVITYUnKnownUnKnownUnKnownUnKnownfalsetrue