CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - SDG&E - USD ($) $ in Millions	Total	Common stock	Retained earnings	Accumulated other comprehensive income (loss)	Sempra Energy shareholders' equity	San Diego Gas and Electric Company	San Diego Gas and Electric Company Common stock	San Diego Gas and Electric Company Retained earnings	San Diego Gas and Electric Company Accumulated other comprehensive income (loss)	San Diego Gas and Electric Company Sempra Energy shareholders' equity
Beginning Balance at Dec. 31, 2019	$ 21,805	$ 7,480	$ 11,130	$ (939)	$ 19,929		$ 1,660	$ 5,456	$ (16)	$ 7,100
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,105		3,933		3,933	$ 824		824		824
Other comprehensive income	422			446	446				6	6
Common stock dividends declared	(1,214)		(1,214)		(1,214)			(200)		(200)
Ending balance at Dec. 31, 2020	24,934	7,053	13,673	(500)	23,373		1,660	6,080	(10)	7,730
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,463		1,318		1,318	819		819		819
Other comprehensive income	171			160	160
Common stock dividends declared	(1,379)		(1,379)		(1,379)			(300)		(300)
Ending balance at Dec. 31, 2021	27,419	11,862	13,548	(318)	25,981		1,660	6,599	(10)	8,249
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,285		2,139		2,139	$ 915		915		915
Other comprehensive income	228			174	174				3	3
Common stock dividends declared	(1,441)		(1,441)		(1,441)			(100)		(100)
Ending balance at Dec. 31, 2022	$ 29,256	$ 12,160	$ 14,201	$ (135)	$ 27,115		$ 1,660	$ 7,414	$ (7)	$ 9,067