SUBSEQUENT EVENT (Details) $ in Millions	Jul. 12, 2019 USD ($)
Subsequent Event [Member]
Subsequent Event [Line Items]
The Liquidity Fund	$ 10,500.0
Subsequent Event [Member] | IOUS, PG&E, Edison and SDG&E [Member]
Subsequent Event [Line Items]
The Liquidity Fund	10,500.0
Forecast [Member] | IOUS, PG&E, Edison and SDG&E [Member]
Subsequent Event [Line Items]
Initial Shareholder Contributions	7,500.0
Additional Annual Contributions	$ 300.0
Period of Annual Contributions	10 years
Total Shareholder Contribution	$ 21,000.0
Forecast [Member] | San Diego Gas and Electric Company [Member]
Subsequent Event [Line Items]
Initial Shareholder Contributions	322.5
Additional Annual Contributions	$ 12.9
Period of Annual Contributions	10 years
Total Shareholder Contribution	$ 452.0