v3.6.0.2

SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA - RESTRICTED NET ASSETS (Details) | Dec. 31, 2016 USD ($)
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Significant Restrictions of Subsidiaries [Line Items] |
Undistributed earnings of equity investments | $ 44,000,000
Sempra South American Utilities [Member] | Luz Del Sur [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 35,000,000
Sempra Mexico [Member] | Mexican Subsidiaries [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 152,000,000
Sempra Mexico [Member] | GdC [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 14,000,000
Sempra Mexico [Member] | Ventika [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 38,000,000
Sempra Mexico [Member] | Energia Sierra Juarez Wind Project [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 10,000,000
Ownership percentage in equity method investee | 50.00%
Sempra Mexico [Member] | Ductos Energéticos del Norte [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 130,000,000
Ownership percentage in equity method investee | 50.00%
Sempra Renewables [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 265,000,000
Sempra Renewables [Member] | Solar Project [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 9,000,000
Sempra Renewables [Member] | Tax Equity LLCs [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 78,000,000
Sempra Renewables [Member] | Joint Venture One [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Ownership percentage in equity method investee | 50.00%
Sempra Renewables [Member] | Joint Venture Two [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Ownership percentage in equity method investee | 25.00%
Sempra LNG and Midstream [Member] | Bay Gas [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 0
Ownership percentage in equity method investee | 91.00%
Sempra LNG and Midstream [Member] | Cameron LNG Holdings [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 5,500,000,000
Consolidated Entities [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 8,600,000,000
Unconsolidated Entities [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 5,900,000,000
San Diego Gas and Electric Company [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | 5,100,000,000
Amount available for dividend distribution and loans without prior approval from regulatory agency | $ 579,000,000
Authorized percentage of equity | 52.00%
Minimum common equity ratio | 30.00%
Southern California Gas Company [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Restricted net assets of consolidated subsidiaries | $ 3,200,000,000
Amount available for dividend distribution and loans without prior approval from regulatory agency | $ 340,000,000
Authorized percentage of equity | 52.00%
California Utilities [Member] |
Significant Restrictions of Subsidiaries [Line Items] |
Maximum ratio of indebtedness to total capitalization | 0.65

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