CALIFORNIA UTILITIES' REGULATORY MATTERS - SCHEDULE OF REGULATORY AMOUNTS 2 (Details) (USD $)	3 Months Ended
	Sep. 30, 2013	Mar. 31, 2012
San Diego Gas and Electric Company and Subsidiary [Member]
Utility Incentive Awards [Line Items]
Unrecorded Energy Efficiency Award, Program Year 2011	$ 3,900,000
San Diego Gas and Electric Company and Subsidiary [Member] | Loss from Catastrophes [Member]
Wildfire [Line Items]
Potential Impact On Earnings	186,000,000
Southern California Gas Company [Member]
Utility Incentive Awards [Line Items]
Recognized Gas Cost Incentive Mechanism Award	5,400,000	6,200,000
Unrecorded Gas Cost Incentive Mechanism Award	5,800,000
Unrecorded Energy Efficiency Award, Program Year 2011	$ 3,100,000