DERIVATIVE FINANCIAL INSTRUMENTS 2 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Cash Flow Hedges
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	$ 411		$ 413
Cash Flow Hedges | Maximum [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Maturities of interest rate derivatives	2028	[1]	2028	[1]
Cash Flow Hedges | Minimum [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Maturities of interest rate derivatives	2014	[1]	2014	[1]
Fair Value Hedges
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	800		300
Debt Instrument, Outstanding Borrowings	500
Fair Value Hedges | First Traunch [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	200
Maturities of interest rate derivatives	2018
Debt Instrument, Interest Rate At Period End	3.80%
Debt Instrument, Outstanding Borrowings	500
Debt Instrument, Interest Rate, Stated Percentage	6.15%
Fair Value Hedges | Second Traunch [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	200
Maturities of interest rate derivatives	2019
Debt Instrument, Interest Rate At Period End	6.01%
Debt Instrument, Outstanding Borrowings	500
Debt Instrument, Interest Rate, Stated Percentage	9.80%
Fair Value Hedges | Third Traunch [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	100
Maturities of interest rate derivatives	2022
Debt Instrument, Interest Rate At Period End	2.37%
Debt Instrument, Outstanding Borrowings	500
Debt Instrument, Interest Rate, Stated Percentage	2.875%
Fair Value Hedges | Maximum [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Maturities of interest rate derivatives	2022		2016
Fair Value Hedges | Minimum [Member]
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Maturities of interest rate derivatives	2016
San Diego Gas and Electric Company and Subsidiary [Member] | Cash Flow Hedges
Schedule Of Notional Amounts Of Interest Rate Derivatives [Line Items]
Derivative Notional Amount	$ 332		$ 335
Maturities of interest rate derivatives	2019	[1]	2019	[1]

[1] Includes Otay Mesa VIE. All of SDG&E’s amounts relate to Otay Mesa VIE.