Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net income including noncontrolling interests	$ 1,994	$ 1,321	$ 3,419
Net income (loss) attributable to Dominion Energy	1,994	1,321	3,399
Other comprehensive income (loss), net of taxes:
Net deferred gains (losses) on derivatives-hedging activities, net	0	67	15
Changes in unrealized net gains (losses) on investment securities, net of tax	55	(100)	(7)
Changes in net unrecognized pension and other postretirement benefit costs (credits), net of tax	27	(218)	144
Amounts reclassified to net income:
Net derivative (gains) losses-hedging activities, net of tax	33	42	46
Net realized (gains) losses on investment securities	(11)	19	(18)
Net pension and other postretirement benefit costs (credits), net of tax	(41)	75	82
Net earnings from equity method investees	3
Changes in other comprehensive income from equity method investees, net of tax	0	1	(3)
Total other comprehensive income	66	(114)	259
Comprehensive income including noncontrolling interests	2,060	1,207	3,678
Comprehensive income attributable to noncontrolling interests			20
Comprehensive income attributable to Dominion Energy	2,060	1,207	3,658
Virginia Electric and Power Company
Net income including noncontrolling interests	1,452	1,112	1,662
Net income (loss) attributable to Dominion Energy	1,452	1,112	1,662
Other comprehensive income (loss), net of taxes:
Net deferred gains (losses) on derivatives-hedging activities, net	(1)	60	13
Changes in unrealized net gains (losses) on investment securities, net of tax	7	(11)	(2)
Amounts reclassified to net income:
Net derivative (gains) losses-hedging activities, net of tax	0	1	2
Net realized (gains) losses on investment securities	1		(2)
Total other comprehensive income	7	50	11
Comprehensive income attributable to Dominion Energy	$ 1,459	$ 1,162	$ 1,673