v3.8.0.1

GENERAL INFORMATION AND OTHER FINANCIAL DATA - OTHER NONCONTROLLING INTERESTS (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2017 USD ($) facility | Mar. 31, 2018 USD ($) subsidiary
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling interests | $ 2,450 | [1] | $ 2,441
San Diego Gas and Electric Company [Member] | Otay Mesa VIE [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 100.00% |  | 100.00%
Noncontrolling interests | $ 28 |  | $ 30
Sempra South American Utilities [Member] | Chilquinta Energía subsidiaries [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling interests | $ 24 |  | $ 26
Number of subsidiaries with noncontrolling interests | subsidiary |  |  | 4
Sempra South American Utilities [Member] | Chilquinta Energía subsidiaries [Member] | Minimum [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 22.90% |  | 22.90%
Sempra South American Utilities [Member] | Chilquinta Energía subsidiaries [Member] | Maximum [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 43.40% |  | 43.40%
Sempra South American Utilities [Member] | Luz del Sur [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 16.40% |  | 16.40%
Noncontrolling interests | $ 189 |  | $ 193
Sempra South American Utilities [Member] | Tecsur [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 9.80% |  | 9.80%
Noncontrolling interests | $ 4 |  | $ 4
Sempra Mexico [Member] | IEnova [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 33.60% |  | 33.60%
Noncontrolling interests | $ 1,532 |  | $ 1,539
Sempra Renewables [Member] | Tax equity arrangement – wind [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling interests | 181 |  | 167
Sempra Renewables [Member] | Tax equity arrangement – solar [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Noncontrolling interests | $ 450 |  | $ 440
Sempra LNG & Midstream [Member] | Bay Gas Storage Company, Ltd. [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 9.10% |  | 9.10%
Noncontrolling interests | $ 28 |  | $ 29
Sempra LNG & Midstream [Member] | Liberty Gas Storage, LLC [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 23.30% |  | 23.40%
Noncontrolling interests | $ 14 |  | $ 13
Solar Power Projects [Member] | Tax Equity Investors [Member] | Sempra Renewables [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Number of facilities acquired | facility | 4 |  |
Subsidiaries [Member] | Sempra Mexico [Member] | IEnova [Member] |  |  |
Noncontrolling Interest [Line Items] |  |  |
Percent ownership held by noncontrolling interests | 10.00% |  |
[1] | Derived from audited financial statements.

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