PREFERRED STOCK - Schedule of Preferred Stock Outstanding (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
SoCalGas
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)	11,000,000
Preferred stock, shares outstanding (in shares)	862,043
Twenty Five Dollar Par, Six Percent Series | SoCalGas
Preferred Stock [Line Items]
Par value (in dollars per share)	$ 25
Preferred stock, shares authorized (in shares)	1,000,000
Preferred stock dividend rate (as a percent)	6.00%
Preferred stock, shares outstanding (in shares)	79,011
Preferred stock outstanding	$ 3	$ 3
Twenty Five Dollar Par, Six Percent Series A | SoCalGas
Preferred Stock [Line Items]
Preferred stock dividend rate (as a percent)	6.00%
Preferred stock, shares outstanding (in shares)	783,032
Preferred stock outstanding	$ 19	19
So Cal Gas Series Preferred Stock | SoCalGas
Preferred Stock [Line Items]
Preferred stock, shares authorized (in shares)	5,000,000
Preferred stock outstanding	$ 22	22
So Cal Gas Preferred Stock Owned By Pacific Enterprises
Preferred Stock [Line Items]
Less: 50,970 shares of the 6% Series outstanding owned by PE	$ (2)	(2)
So Cal Gas Preferred Stock Owned By Pacific Enterprises | SoCalGas
Preferred Stock [Line Items]
Preferred stock dividend rate (as a percent)	6.00%
Preferred stock, shares outstanding (in shares)	50,970
Preferred Stock Of Subsidiaries
Preferred Stock [Line Items]
Preferred stock outstanding	$ 20	$ 20