CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Dividends declared per share of common stock (in dollars per share)	$ 1.05	$ 0.97
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
Series A Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)	1.50	1.50
Series B Preferred Stock [Member]
Dividends declared per share of preferred stock (in dollars per share)	$ 1.69	$ 1.69