DEBT AND CREDIT FACILITIES 2 (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Redemption of industrial development bonds	$ 79	$ 0
Sempra Natural Gas [Member]
Debt Instrument [Line Items]
Redemption of industrial development bonds	79
Other Long Term Debt, Variable Rate Due 2017 [Member] \| San Diego Gas and Electric Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 140
Debt Instrument, Interest Rate At Period End	0.48%
Debt Instrument, Variable Base Rate	0.20%
Other Long Term Debt, Fixed Rate Due 2020 [Member] \| Sempra Energy [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 500
Debt Instrument, Interest Rate, Stated Percentage	2.40%
Other Long Term Debt, Amortizing Fixed Rate Due 2022 [Member] \| San Diego Gas and Electric Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 250
Debt Instrument, Interest Rate, Stated Percentage	1.914%
Other Long Term Debt, Fixed Rate Due 2025 [Member] \| Southern California Gas Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 350
Debt Instrument, Interest Rate, Stated Percentage	3.20%
Other Long Term Debt, Fixed Rate Due June 2018 [Member] \| Southern California Gas Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 250
Debt Instrument, Interest Rate, Stated Percentage	1.55%
Other Long Term Debt, Fixed Rate Due June 2018 [Member] \| South America Utilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 22
Debt Instrument, Interest Rate, Stated Percentage	5.18%
Other Long Term Debt Fixed Rate Due May 2018 [Member] \| South America Utilities [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 13
Debt Instrument, Interest Rate, Stated Percentage	5.18%
Other Long Term Debt Fixed Rate Due between 2021 and 2027 [Member] \| San Diego Gas and Electric Company [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage Rate Range Minimum	4.90%
Debt Instrument Interest Rate Stated Percentage Rate Range Maximum	5.50%
Planned Early Redemption Of Long Term Debt Instruments	$ 169

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- Definition

Planned Early Redemption Of Long Term Debt Instruments

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- Definition

Redemption of industrial development bonds

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.22(a)(1))

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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

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