CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Dividends declared per share of common stock (in dollars per share)	$ 1.10	$ 1.04	$ 2.20	$ 2.09
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)	0.37	0.37	0.75	0.75
Dividends declared per share of common stock (in dollars per share)	0.27	0.55	0.82	0.55
Series A Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)		1.50		3.00
Series B Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)	1.69	1.69	3.38	3.38
Series C Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)	$ 12.19	$ 1.63	$ 24.38	$ 1.63