CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Dividends declared per share of common stock (in dollars per share)	$ 1.10	$ 1.05	$ 3.30	$ 3.14
San Diego Gas and Electric Company [Member]
Dividends declared per share of common stock (in dollars per share)				1.72
Southern California Gas Company [Member]
Dividends declared per share of preferred stock (in dollars per share)	0.38	0.38	1.13	1.13
Dividends declared per share of common stock (in dollars per share)		0.55	0.82	1.10
Series A Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)		1.50		4.50
Series B Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)		1.68	3.38	5.06
Series C Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)	$ 12.19	$ 14.08	$ 36.57	$ 15.71