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, 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 (loss)	928			895		895	$ 212		212		212
Ending balance at Mar. 31, 2021	25,608		8,730	14,214	(399)	23,999		1,660	6,292	(10)	7,942
Beginning Balance at Dec. 31, 2021	27,419	[1]	11,862	13,548	(318)	25,981		1,660	6,599	(10)	8,249
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	657			623		623	$ 234		234		234
Ending balance at Mar. 31, 2022	$ 27,560		$ 11,656	$ 13,798	$ (229)	$ 26,114		$ 1,660	$ 6,833	$ (10)	$ 8,483

[1] Derived from audited financial statements.