CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF UTILITY PROJECTS (Details) (USD $)	9 Months Ended
	Sep. 30, 2014
Pipeline Safety Phase 1 [Member] | San Diego Gas and Electric Company and Subsidiary [Member]
Schedule Of Utility Projects [Line Items]
Pipeline Safety Plan Regulatory Account	$ 200,000
Pipeline Safety Phase 1 [Member] | Southern California Gas Company [Member]
Schedule Of Utility Projects [Line Items]
Pipeline Safety Plan Regulatory Account	47,000,000
Disallowed Costs Impact On Earnings After Tax	5,000,000
South Orange County Reliability Enhancement [Member] | San Diego Gas and Electric Company and Subsidiary [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	400,000,000
Estimated Project Cost, Upper Range	500,000,000
Cleveland National Forest Transmissions Projects [Member] | San Diego Gas and Electric Company and Subsidiary [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	400,000,000
Estimated Project Cost, Upper Range	450,000,000
South Bay Substation [Member] | San Diego Gas and Electric Company and Subsidiary [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	145,000,000
Estimated Project Cost, Upper Range	175,000,000
Southern Gas System Member [Member] | Utility Subsidiaries [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	800,000,000
Estimated Project Cost, Upper Range	850,000,000
Sycamore Penasquitos Transmission Project [Member] | San Diego Gas and Electric Company and Subsidiary [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	120,000,000
Estimated Project Cost, Upper Range	$ 150,000,000