CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF UTILITY PROJECTS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 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	$ 1
Pipeline Safety Phase 1 [Member] | Southern California Gas Company [Member]
Schedule Of Utility Projects [Line Items]
Pipeline Safety Plan Regulatory Account	48
Disallowed Costs Impact On Earnings After Tax	6
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
Estimated Project Cost, Upper Range	500
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
Estimated Project Cost, Upper Range	175
Southern Gas System Member [Member] | Utility Subsidiaries [Member]
Schedule Of Utility Projects [Line Items]
Estimated Project Cost, Lower Range	800
Estimated Project Cost, Upper Range	850
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
Estimated Project Cost, Upper Range	$ 150