Investments (Tables)

3 Months Ended

Mar. 31, 2024

Equity and Debt Securities and Cash Equivalents and Cost Method Investments in Decommissioning Trust Funds

The Companies’ decommissioning trust funds are summarized below:

	Dominion Energy												Virginia Power
	Amortized Cost		Total Unrealized Gains		Total Unrealized Losses				Allowance for Credit Losses		Fair Value		Amortized Cost		Total Unrealized Gains		Total Unrealized Losses				Allowance for Credit Losses		Fair Value
(millions)
March 31, 2024
Equity securities:(1)
U.S.	$	1,260	$	3,720	$	(10	)				$	4,970	$	733	$	1,936	$	(7	)				$	2,662
Fixed income securities:(2)
Corporate debt    instruments		562		7		(27	)		$	—		542		319		2		(21	)		$	—		300
Government    securities		1,441		12		(61	)			—		1,392		822		7		(34	)			—		795
Common/    collective    trust funds		—		—		—				—		—		—		—		—				—		—
Other		211		—		—				—		211		176		—		—				—		176
Insurance    contracts		245		—		—						245
Cash equivalents    and other(3)		58		—		—				—		58		27		—		—				—		27
Total	$	3,777	$	3,739	$	(98	)	(4)	$	—	$	7,418	$	2,077	$	1,945	$	(62	)	(4)	$	—	$	3,960
December 31, 2023
Equity securities:(1)
U.S.	$	1,276	$	3,270	$	(10	)				$	4,536	$	759	$	1,706	$	(10	)				$	2,455
Fixed income securities:(2)
Corporate debt    instruments		508		10		(27	)		$	—		491		292		3		(21	)		$	—		274
Government    securities		1,426		28		(24	)			—		1,430		811		17		(12	)			—		816
Common/    collective    trust funds		161		—		—				—		161		124		—		—				—		124
Insurance    contracts		244		—		—						244
Cash equivalents    and other(3)		84		—		—				—		84		47		—		—				—		47
Total	$	3,699	$	3,308	$	(61	)	(4)	$	—	$	6,946	$	2,033	$	1,726	$	(43	)	(4)	$	—	$	3,716

(1)Unrealized gains and losses on equity securities are included in other income (expense) and the nuclear decommissioning trust regulatory liability.

(2)Unrealized gains and losses on fixed income securities are included in AOCI and the nuclear decommissioning trust regulatory liability. Changes in allowance for credit losses are included in other income (expense).

(3)Dominion Energy includes pending sales of securities of $45 million and $49 million at March 31, 2024 and December 31, 2023, respectively. Virginia Power includes pending sales of securities of $24 million and $27 million at March 31, 2024, and December 31, 2023, respectively.

(4)Dominion Energy’s fair value of securities in an unrealized loss position was $1.2 billion and $764 million at March 31, 2024 and December 31, 2023, respectively. Virginia Power’s fair value of securities in an unrealized loss position was $696 million and $384 million at March 31, 2024 and December 31, 2023, respectively.

Unrealized Gain Loss on Equity

The portion of unrealized gains and losses that relates to equity securities held within Dominion Energy and Virginia Power’s nuclear decommissioning trusts is summarized below:

	Dominion Energy					Virginia Power
Three Months Ended March 31,	2024			2023		2024			2023
(millions)
Net gains (losses) recognized during    the period	$	459		$	226	$	242		$	116
Less: Net (gains) losses recognized    during the period on securities    sold during the period		(10	)		2		(9	)		1
Unrealized gains (losses) recognized    during the period on securities still    held at period end(1)	$	449		$	228	$	233		$	117

(1)Included in other income (expense) and the nuclear decommissioning trust regulatory liability.

Investments Classified by Contractual Maturity Date

The fair value of Dominion Energy and Virginia Power’s fixed income securities with readily determinable fair values held in nuclear decommissioning trust funds at March 31, 2024 by contractual maturity is as follows:

	Dominion Energy		Virginia Power
(millions)
Due in one year or less	$	30	$	16
Due after one year through five years		514		254
Due after five years through ten years		405		236
Due after ten years		985		589
Total	$	1,934	$	1,095

Marketable Securities

Presented below is selected information regarding Dominion Energy and Virginia Power’s equity and fixed income securities with readily determinable fair values held in nuclear decommissioning trust funds.

	Dominion Energy				Virginia Power
Three Months Ended March 31,	2024		2023		2024		2023
(millions)
Proceeds from sales	$	695	$	544	$	471	$	373
Realized gains(1)		32		21		23		17
Realized losses(1)		38		41		23		31

(1)Includes realized gains and losses recorded to the nuclear decommissioning trust regulatory liability.