COMMITMENTS AND CONTINGENCIES - LEGAL PROCEEDINGS (Details)				3 Months Ended
	Jun. 30, 2014 USD ($)	Jun. 30, 2014 San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Southern California Gas Company [Member] USD ($)	Jun. 30, 2014 Loss from Catastrophes [Member] San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Liberty Gas Storage Litigation [Member] USD ($)	Jun. 30, 2014 HMRC VAT Claim [Member] GBP (£)	Jun. 30, 2014 Sunrise Powerlink Construction [Member] San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Sunrise San Diego County Mechanics Lien [Member] San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Sunrise Imperial County Mechanics Lien [Member] San Diego Gas and Electric Company and Subsidiary [Member] USD ($)	Jun. 30, 2014 Rim Rock [Member] San Diego Gas and Electric Company and Subsidiary [Member] USD ($)
Loss Contingencies [Line Items]
Loss Contingency Accrual, at Carrying Value	$ 181,000,000	$ 157,000,000	$ 18,000,000	$ 115,000,000
Payments for Legal Settlements in April 2010, CPUC Proceedings				14,750,000
Claims Payments By Insurers To All Claimants				1,600,000,000
Percentage of Total Claims to be Paid by Company				57.50%
Total Settled Claims				1,250,000,000
Total Remaining Settlement Demands				230,000,000
Loss Contingency Number Of Plaintiffs				6,500
Loss Contingency, Number Of Claims				19,000
Liability Insurance Coverage, Maximum				1,100,000,000
Litigation Settlement Amount, Gross, Recovered From Third Parties				824,000,000
Loss Contingency Monetary Damages Sought					56,700,000
Counterclaim For Damages On Contract Termination					215,000,000
Payments For Legal Settlements In Excess Of Recovered Amounts				391,000,000
VAT Tax Claim Amount						86,000,000
Regulatory Assets Arising From Wildfire Litigation Costs				373,000,000
Potential After-Tax Earnings Impact				210,000,000
Portion of Regulatory Assets Arising From Wildfire Litigation Related To CPUC Operations				354,000,000
Fixed Fee Contract Amount							456,000,000
Unbilled Change Orders							180,300,000	99,200,000	81,100,000
Estimated Tax Equity Investment										$ 285,000,000