CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF UTILITY PROJECTS (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 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	$ 2
Pipeline Safety Phase 1 [Member] | Southern California Gas Company [Member]
Schedule Of Utility Projects [Line Items]
Pipeline Safety Plan Regulatory Account	56
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
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