v3.4.0.3

CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF GENERAL RATE CASE (Details) - Year 2016 [Member] - USD ($) $ in Millions | 12 Months Ended |
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2016
San Diego Gas and Electric Company [Member] |  |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |  |
General Rate Case, Revenue Requirement, Revised Request |  |  |  | $ 1,811 |
General Rate Case, Revenue Requirement Increase, Original Request |  |  |  | 133 |
General Rate Case, Revenue Requirement Increase, Revised Request |  |  |  | $ 17 |
General Rate Case, Revenue Requirement Percentage Increase, Revised Request | 4.30% | 3.50% | 3.50% | 1.00% |
General Rate Case, Revised Request Decrease Compared To Original |  |  |  | $ (100) |
General Rate Case, Adjustment To Decrease Estimated Revenue Requirement |  |  |  | 16 |
General Rate Case, Proposed Rate Base Adjustment |  |  |  | 93 |
General Rate Case, Tax Memorandum Accounts Balance |  |  |  |  | $ 39
Southern California Gas Company [Member] |  |  |  |  |
Public Utilities General Disclosures [Line Items] |  |  |  |  |
General Rate Case, Revenue Requirement, Revised Request |  |  |  | 2,219 |
General Rate Case, Revenue Requirement Increase, Original Request |  |  |  | 256 |
General Rate Case, Revenue Requirement Increase, Revised Request |  |  |  | $ 122 |
General Rate Case, Revenue Requirement Percentage Increase, Revised Request | 4.30% | 3.50% | 3.50% | 6.00% |
General Rate Case, Revised Request Decrease Compared To Original |  |  |  | $ (133) |
General Rate Case, Proposed Rate Base Adjustment |  |  |  | $ 92 |
General Rate Case, Tax Memorandum Accounts Balance |  |  |  |  | $ 74

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