v3.6.0.2

COMMITMENTS AND CONTINGENCIES - LOSS ON CONTINGENCIES (Details) € in Millions, £ in Millions |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 27, 2017 plaintiff lawsuit | Mar. 31, 2016 t | Feb. 28, 2017 USD ($) | Jan. 31, 2017 USD ($) lawsuit | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) Bcf appeal | Dec. 31, 2015 EUR (€) | Oct. 21, 2016 t | Dec. 31, 2015 USD ($) | Oct. 01, 2014 GBP (£)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  | $ 19,000,000 |  |  |  |
Reserve for Aliso Canyon costs |  |  |  |  |  | 53,000,000 |  |  | $ 274,000,000 |
San Diego Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  | 16,000,000 |  |  |  |
Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  | 1,000,000 |  |  |  |
Reserve for Aliso Canyon costs |  |  |  |  |  | 53,000,000 |  |  | $ 274,000,000 |
Loss from Catastrophes, 2007 Wildfire [Member] | San Diego Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  | 353,000,000 |  |  |  |
Portion of Regulatory Assets Arising From Wildfire Litigation Related To CPUC-Regulated Operations |  |  |  |  |  | 352,000,000 |  |  |  |
Portion of Regulatory Assets Arising From Wildfire Litigation Related To FERC-Regulated Operations |  |  |  |  |  | 1,000,000 |  |  |  |
Potential After-Tax Earnings Impact |  |  |  |  |  | $ 208,000,000 |  |  |  |
Number of Appeals Pending | appeal |  |  |  |  |  | 2 |  |  |  |
Rim Rock Wind Farm [Member] | San Diego Gas and Electric Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation Settlement Amount, Settlement Agreement |  |  |  |  |  | $ 39,000,000 |  |  |  |
Estimated Tax Equity Investment |  |  |  |  |  | 285,000,000 |  |  |  |
Aliso Canyon Natural Gas Storage Facility Gas Leak [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  | 1,000,000 |  |  |  |
Aliso Canyon Natural Gas Storage Facility Gas Leak [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingency Accrual |  |  |  |  |  | 1,000,000 |  |  |  |
Net Book Value Of Aliso Canyon Natural Gas Storage Facility |  |  |  |  |  | 531,000,000 |  |  |  |
Construction in Work Progress Of Aliso Canyon Natural Gas Storage Facility |  |  |  |  |  | 217,000,000 |  |  |  |
Recorded Estimated Costs |  |  |  |  |  | $ 780,000,000 |  |  |  |
Estimated Costs Related To Temporary Relocation Percentage |  |  |  |  |  | 70.00% |  |  |  |
Estimated Costs Related To Controlling Well And Stopping Leak And Emissions Percentage |  |  |  |  |  | 20.00% |  |  |  |
Insurance receivable for Aliso Canyon costs |  |  |  |  |  | $ 606,000,000 |  |  |  |
Proceeds from Insurance Settlement, Operating Activities |  |  |  |  |  | 169,000,000 |  |  |  |
Reserve for Aliso Canyon costs |  |  |  |  |  | $ 53,000,000 |  |  |  |
Storage Facility Maximum Capacity | Bcf |  |  |  |  |  | 86 |  |  |  |
Aliso Canyon Facility As A Percentage of SoCalGas Total Storage Capacity |  |  |  |  |  | 63.00% |  |  |  |
Amount of Natural Gas Released | Bcf |  |  |  |  |  | 4.62 |  |  |  |
Loss Contingency, Period Of Required Climate Reductions |  | 20 years |  |  |  |  |  |  |  |
Loss Contingency, Period Of Required Regulatory Climate Reductions |  | 100 years |  |  |  |  |  |  |  |
Loss Contingency, Target Emissions Level | t |  | 9,000,000 |  |  |  |  |  |  |  |
Loss Contingency, Total Actual Emissions, Floor | t |  |  |  |  |  |  |  | 90,350 |  |
Loss Contingency, Total Actual Emissions, Ceiling | t |  |  |  |  |  |  |  | 108,950 |  |
Loss Contingency, Mitigation Requirement | t |  |  |  |  |  |  |  | 109,000 |  |
Damages from Product Defects [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum Occupational Safety And Health Fines |  |  |  |  | $ 75,000 |  |  |  |  |
Penalty Assessments |  |  |  |  | 233,500 |  |  |  |  |
Maximum Other Assessments |  |  |  |  | $ 4,000,000 |  |  |  |  |
So Cal Gas PCB Litigation [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of lawsuits |  |  |  |  |  | 7 |  |  |  |
Sempra Mexico Property Disputes [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of lawsuits |  |  |  |  |  | 2 |  |  |  |
HMRC VAT Claim [Member] | Parent Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
VAT Tax Claim Paid Upon Appeal | £ |  |  |  |  |  |  |  |  |  | £ 86
R B S Sempra Commodities [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Damages sought | € |  |  |  |  |  |  | € 146 |  |  |
Investment in RBS Sempra Commodities LLP |  |  |  |  |  | $ 67,000,000 |  |  |  |
Subsequent Event [Member] | Aliso Canyon Natural Gas Storage Facility Gas Leak [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number Of Plaintiffs | plaintiff | 14,000 |  |  |  |  |  |  |  |  |
Number of lawsuits | lawsuit | 250 |  |  |  |  |  |  |  |  |
Minimum [Member] | Aliso Canyon Natural Gas Storage Facility Gas Leak [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  | 1,200,000,000 |  |  |  |
Loss Contingency, Environmental Mitigation Period |  | 5 years |  |  |  |  |  |  |  |
Maximum [Member] | Aliso Canyon Natural Gas Storage Facility Gas Leak [Member] | Southern California Gas Company [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Liability insurance coverage |  |  |  |  |  | $ 1,400,000,000 |  |  |  |
Loss Contingency, Environmental Mitigation Period |  | 10 years |  |  |  |  |  |  |  |
Consolidated Class Action Complaints [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of lawsuits | lawsuit |  |  |  | 2 |  |  |  |  |  |
Property Class Action [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of lawsuits | lawsuit |  |  |  | 1 |  |  |  |  |  |
Complaints Filed by Public Entities [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation Settlement Amount, Settlement Agreement |  |  | $ 8,500,000 |  |  |  |  |  |  |
Damages sought |  |  |  | $ 250,000 |  |  |  |  |  |
Number of lawsuits | lawsuit |  |  |  | 3 |  |  |  |  |  |
Complaints Filed by Public Entities [Member] | Subsequent Event [Member] | Health Study [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Litigation Settlement Amount, Settlement Agreement |  |  | $ 1,000,000 |  |  |  |  |  |  |

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