Consolidated Statements of Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total		Preferred Stock	Common Stock	Retained Earnings	AOCI	Total Shareholders' Equity
Beginning balance at Dec. 31, 2021	$ 27,308		$ 1,783	$ 21,610	$ 5,373	$ (1,458)	$ 27,308
Beginning balance (in shares) at Dec. 31, 2021			2	810
Net income including noncontrolling interests	1,036				1,036		1,036
Issuance of stock	1,847			$ 1,847			1,847
Issuance of stock (in shares)				23
Stock awards (net of change in unearned compensation)	23			$ 23			23
Preferred stock dividends (see Note 16)	(72)				(72)		(72)
Common stock dividends and distributions	(1,653)				(1,653)		(1,653)
Other comprehensive income, net of tax	84					84	84
Ending balance at Sep. 30, 2022	28,573		$ 1,783	$ 23,480	4,684	(1,374)	28,573
Ending balance (in shares) at Sep. 30, 2022			2	833
Beginning balance at Jun. 30, 2022	28,297		$ 1,783	$ 23,427	4,483	(1,396)	28,297
Beginning balance (in shares) at Jun. 30, 2022			2	832
Net income including noncontrolling interests	778				778		778
Issuance of stock	44			$ 44			44
Issuance of stock (in shares)				1
Stock awards (net of change in unearned compensation)	9			$ 9			9
Preferred stock dividends (see Note 16)	(20)				(20)		(20)
Common stock dividends and distributions	(557)				(557)		(557)
Other comprehensive income, net of tax	22					22	22
Ending balance at Sep. 30, 2022	28,573		$ 1,783	$ 23,480	4,684	(1,374)	28,573
Ending balance (in shares) at Sep. 30, 2022			2	833
Beginning balance at Dec. 31, 2022	27,881	[1]	$ 1,783	$ 23,605	4,065	(1,572)	27,881
Beginning balance (in shares) at Dec. 31, 2022			2	835
Net income including noncontrolling interests	1,759				1,759		1,759
Issuance of stock	91			$ 91			91
Issuance of stock (in shares)				2
Stock awards (net of change in unearned compensation)	24			$ 24			24
Preferred stock dividends (see Note 16)	(60)				(60)		(60)
Common stock dividends and distributions	(1,674)				(1,674)		(1,674)
Other comprehensive income, net of tax	7					7	7
Ending balance at Sep. 30, 2023	28,028		$ 1,783	$ 23,720	4,090	(1,565)	28,028
Ending balance (in shares) at Sep. 30, 2023			2	837
Beginning balance at Jun. 30, 2023	28,428		$ 1,783	$ 23,704	4,507	(1,566)	28,428
Beginning balance (in shares) at Jun. 30, 2023			2	837
Net income including noncontrolling interests	163				163		163
Issuance of stock	6			$ 6			6
Stock awards (net of change in unearned compensation)	10			10			10
Preferred stock dividends (see Note 16)	(20)				(20)		(20)
Common stock dividends and distributions	(559)				(559)		(559)
Other comprehensive income, net of tax	1					1	1
Other	(1)				(1)		(1)
Ending balance at Sep. 30, 2023	$ 28,028		$ 1,783	$ 23,720	$ 4,090	$ (1,565)	$ 28,028
Ending balance (in shares) at Sep. 30, 2023			2	837

[1] Dominion Energy’s Consolidated Balance Sheet at December 31, 2022 has been derived from the audited Consolidated Balance Sheet at that date and recast for certain events as discussed in Note 1.