Income Taxes (Tables)

3 Months Ended

Mar. 31, 2022

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
Three Months Ended March 31,	2022			2021			2022			2021
U.S. statutory rate		21.0	%		21.0	%		21.0	%		21.0	%
Increases (reductions) resulting from:
Recognition of deferred taxes - stock of subsidiary held for sale	9.4				—			—			—
State taxes, net of federal benefit		3.3			3.5			4.4			4.5
Investment tax credits		(3.9	)		(3.8	)		(6.7	)		(6.6	)
Production tax credits		(0.4	)		(0.3	)		(0.8	)		(0.6	)
Reversal of excess deferred income    taxes		(4.1	)		(2.2	)		(3.0	)		(2.2	)
Changes in state deferred taxes associated    with assets held for sale		0.5			—			—			—
AFUDC - equity		(0.6	)		(0.4	)		(0.9	)		(0.7	)
Other, net		0.2			—			0.6			0.3
Effective tax rate		25.4	%		17.8	%		14.6	%		15.7	%