Income Taxes (Tables)

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Effective Income Tax

For continuing operations, including noncontrolling interests, the statutory U.S. federal income tax rate reconciles to the Companies’ effective income tax rate as follows:

	Dominion Energy						Virginia Power
Six Months Ended June 30,	2021			2020			2021			2020
U.S. statutory rate		21.0	%		21.0	%		21.0	%		21.0	%
Increases (reductions) resulting from:
State taxes, net of federal benefit		2.3			4.1			4.5			4.9
Investment tax credits		(5.3	)		(19.5	)		(5.8	)		(11.3	)
Production tax credits		(0.4	)		(1.6	)		(0.6	)		(2.0	)
Reversal of excess deferred income    taxes		(3.5	)		(6.5	)		(2.1	)		(0.8	)
State legislative change		(1.5	)		—			(1.7	)		—
AFUDC - equity		(0.5	)		(2.1	)		(0.6	)		(0.6	)
Other, net		(0.4	)		1.2			0.3			1.1
Effective tax rate		11.7	%		(3.4	)%		15.0	%		12.3	%