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CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details) - Southern California Gas Company [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Year 2014 [Member]
Utility Incentive Awards [Line Items]
Recognized Gas Cost Incentive Mechanism Award		$ 13,700
Year 2015 [Member]
Utility Incentive Awards [Line Items]
Requested Gas Cost Incentive Mechanism Award	$ 7,250

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- Definition

Recognized Gas Cost Incentive Mechanism Award.

+ References

No definition available.

+ Details

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Namespace Prefix:	sre_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Requested Gas Cost Incentive Mechanism Award.

+ References

No definition available.

+ Details

Name:	sre_RequestedGasCostIncentiveMechanismAward
Namespace Prefix:	sre_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

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Namespace Prefix:	sre_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	sre_ProgramYearAxis=sre_Year2014Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	sre_ProgramYearAxis=sre_Year2015Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: