v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - CAPITALIZED FINANCING COSTS (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Capitalized Financing Costs Disclosure [Line Items] |  |  |
Total capitalized financing costs | $ 236 | $ 201 | $ 167
San Diego Gas and Electric Company [Member] |  |  |
Capitalized Financing Costs Disclosure [Line Items] |  |  |
Total capitalized financing costs | 62 | 51 | 52
Southern California Gas Company [Member] |  |  |
Capitalized Financing Costs Disclosure [Line Items] |  |  |
Total capitalized financing costs | $ 55 | $ 49 | $ 34

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- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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