PREFERRED STOCK (Details)	Jun. 19, 2020 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Jul. 15, 2021 shares	Jan. 15, 2021 shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		50,000,000			50,000,000	50,000,000
Sempra Energy
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		50,000,000
San Diego Gas and Electric Company [Member]
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		45,000,000			45,000,000	45,000,000
Number of preferred stock shares outstanding (in shares)		0			0
Preferred stock, shares issued (in shares)		0			0
SoCalGas
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		11,000,000			11,000,000	11,000,000
Number of preferred stock shares outstanding (in shares)		1,000,000			1,000,000	1,000,000
Series A Preferred Stock
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)				17,250,000
Shares converted				17,250,000
Convertible Preferred Stock Series A
Preferred Stock [Line Items]
Number of preferred stock shares outstanding (in shares)					17,250,000	17,250,000
Shares converted				13,781,025
Preferred stock conversion ratio				0.7989
Series B Preferred Stock
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)			5,750,000
Shares converted			5,750,000
Series C Preferred Stock
Preferred Stock [Line Items]
Number of preferred stock shares outstanding (in shares)		900,000			900,000
Preferred stock, shares issued (in shares)	900,000
Stated percentage rate	4.875%
Preferred stock redemption price (in dollars per share) | $ / shares	$ 1,000
Proceeds from issuance of preferred stock | $	$ 889,000,000
Preferred stock, discount on shares | $	11,000,000
Preferred stock, liquidation preference | $	$ 1,000
Series C Preferred Stock | Period three
Preferred Stock [Line Items]
Preferred stock redemption price (in dollars per share) | $ / shares	$ 1,020
Liquidation preference per share (as a percent)	102.00%
Series C Preferred Stock | Period one
Preferred Stock [Line Items]
Preferred stock dividend rate (as a percent)	4.875%
Liquidation preference (in dollars per share) | $ / shares	$ 1,000
Series C Preferred Stock | Period two
Preferred Stock [Line Items]
Preferred stock dividend rate (as a percent)	4.55%
Liquidation preference (in dollars per share) | $ / shares	$ 1,000
Convertible Preferred Stock Series B
Preferred Stock [Line Items]
Number of preferred stock shares outstanding (in shares)					5,750,000	5,750,000
Shares converted			4,256,720
Preferred stock conversion ratio			0.7403
So Cal Gas Series Preferred Stock [Member]
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		5,000,000
So Cal Gas Series Preferred Stock [Member] | SoCalGas
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		5,000,000
Preferred stock outstanding | $		$ 22,000,000			$ 22,000,000	$ 22,000,000
Twenty Five Dollar Par, Six Percent Series | SoCalGas
Preferred Stock [Line Items]
Preferred stock shares authorized (in shares)		1,000,000
Number of preferred stock shares outstanding (in shares)		79,011
Par value (in dollars per share) | $ / shares		$ 25
Preferred stock outstanding | $		$ 3,000,000			3,000,000	3,000,000
Twenty Five Dollar Par, Six Percent Series A | SoCalGas
Preferred Stock [Line Items]
Number of preferred stock shares outstanding (in shares)		783,032
Liquidation preference (in dollars per share) | $ / shares		$ 25
Preferred stock outstanding | $		$ 19,000,000			19,000,000	19,000,000
So Cal Gas Preferred Stock Owned By Pacific Enterprises
Preferred Stock [Line Items]
Preferred stock outstanding held by parent | $		$ (2,000,000)			(2,000,000)	(2,000,000)
So Cal Gas Preferred Stock Owned By Pacific Enterprises | SoCalGas
Preferred Stock [Line Items]
Number of preferred stock shares outstanding (in shares)		50,970
Preferred Stock Of Subsidiaries
Preferred Stock [Line Items]
Preferred stock outstanding | $		$ 20,000,000			$ 20,000,000	$ 20,000,000