v3.2.0.727

CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 3 (Details) - Southern California Gas Company [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended | 36 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2014
Impact Of 2010 Tax Act [Line Items] |  |  |  |  |  |  |  |
Increase Due To Bonus Depreciation Extension, Net Of Tax | $ 800 | $ 1,400 | $ 1,800 |  |  |  |  | $ 11,300
Increase Due To Bonus Depreciation Extension, Before Tax |  |  |  | $ 6,600 | $ 6,400 | $ 6,300 | $ 6,400 |
First Quarter [Member] |  |  |  |  |  |  |  |
Seasonal Factors [Line Items] |  |  |  |  |  |  |  |
Percentage Revenue Recognized Straight Line | 25.00% |  |  |  |  |  |  |
Percentage Revenue Recognized Seasonal | 34.00% |  |  |  |  |  |  |
Second Quarter [Member] |  |  |  |  |  |  |  |
Seasonal Factors [Line Items] |  |  |  |  |  |  |  |
Percentage Revenue Recognized Straight Line | 25.00% |  |  |  |  |  |  |
Percentage Revenue Recognized Seasonal | 21.00% |  |  |  |  |  |  |
Third Quarter [Member] |  |  |  |  |  |  |  |
Seasonal Factors [Line Items] |  |  |  |  |  |  |  |
Percentage Revenue Recognized Straight Line | 25.00% |  |  |  |  |  |  |
Percentage Revenue Recognized Seasonal | 16.00% |  |  |  |  |  |  |
Fourth Quarter [Member] |  |  |  |  |  |  |  |
Seasonal Factors [Line Items] |  |  |  |  |  |  |  |
Percentage Revenue Recognized Straight Line | 25.00% |  |  |  |  |  |  |
Percentage Revenue Recognized Seasonal | 29.00% |  |  |  |  |  |  |

X
- References No definition available. + Details
Name: | sre_ImpactOf2010TaxActLineItems
Namespace Prefix: | sre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sre_IncreaseDueToBonusDepreciationExtensionBeforeTax
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | sre_IncreaseDueToBonusDepreciationExtensionNetOfTax
Namespace Prefix: | sre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | sre_PercentageRevenueRecognizedSeasonal
Namespace Prefix: | sre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sre_PercentageRevenueRecognizedStraightLine
Namespace Prefix: | sre_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sre_SeasonalFactorsLineItems
Namespace Prefix: | sre_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=sre_SouthernCaliforniaGasCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sre_ScheduleOfSeasonalFactorsAxis=sre_FirstQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sre_ScheduleOfSeasonalFactorsAxis=sre_SecondQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sre_ScheduleOfSeasonalFactorsAxis=sre_ThirdQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | sre_ScheduleOfSeasonalFactorsAxis=sre_FourthQuarterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |