Income Taxes (Tables)

6 Months Ended

Jun. 30, 2020

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						Dominion Energy Gas
Six Months Ended June 30,	2020			2019			2020			2019			2020				2019
U.S. statutory rate		21.0	%		21.0	%		21.0	%		21.0	%		21.0	%			21.0	%
Increases (reductions) resulting from:
State taxes, net of federal benefit		5.6			0.7			4.9			4.7			(255.3	)			3.0
Investment tax credits		3.9			(3.8	)		(11.3	)		(5.2	)		—				—
Production tax credits		0.3			(1.1	)		(2.0	)		(0.8	)		—				—
Reversal of excess deferred income    taxes		1.5			(6.9	)		(0.8	)		(4.2	)		(68.4	)			(0.9	)
Write-off of regulatory assets		(4.2	)		(41.6	)		—			—			189.4				—
AFUDC - equity		0.5			(1.9	)		(0.6	)		(0.1	)		(36.8	)			(0.5	)
Other, net		0.9			(0.3	)		1.1			0.4			(467.1	)	(1)		(4.3	)	(1)
Effective tax rate		29.5	%		(33.9	)%		12.3	%		15.8	%		(617.2	)%			18.3	%

(1) Includes (276.0)% and (4.0)% relating to the absence of tax on noncontrolling interest in 2020 and 2019, respectively.