v3.6.0.2

COMMITMENTS AND CONTINGENCIES - ENVIRONMENTAL ISSUES (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Environmental Issues [Line Items] |  |  |
Environmental Costs Recognized, Capitalized in Period | $ 53 | $ 64 | $ 45
San Diego Gas and Electric Company [Member] |  |  |
Environmental Issues [Line Items] |  |  |
Environmental Costs Recognized, Capitalized in Period | 17 | 24 | 23
Southern California Gas Company [Member] |  |  |
Environmental Issues [Line Items] |  |  |
Environmental Costs Recognized, Capitalized in Period | $ 35 | $ 39 | $ 21

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- References No definition available. + Details
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- Definition Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 25 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=39739230&loc=d3e11660-110855 + Details
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