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Income Taxes | 6 Months Ended
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Jun. 30, 2017
Income Tax Disclosure [Abstract] |
Income Taxes | Note 5.Income Taxes 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, |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
U.S. statutory rate |  |  | 35.0 | % |  |  | 35.0 | % |  |  | 35.0 | % |  |  | 35.0 | % |  |  | 35.0 | % |  |  | 35.0 | %
Increases (reductions) resulting from: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
State taxes, net of federal benefit |  |  | 2.8 |  |  |  | 4.3 |  |  |  | 3.7 |  |  |  | 4.0 |  |  |  | 1.5 |  |  |  | 3.8 |
Investment tax credits |  |  | (5.5 | ) |  |  | (9.9 | ) |  |  | (0.8 | ) |  |  | — |  |  |  | — |  |  |  | — |
Production tax credits |  |  | (0.8 | ) |  |  | (0.8 | ) |  |  | (0.5 | ) |  |  | (0.6 | ) |  |  | — |  |  |  | — |
State legislative change |  |  | — |  |  |  | (1.3 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
AFUDC - equity |  |  | (1.4 | ) |  |  | (0.7 | ) |  |  | (0.6 | ) |  |  | (0.7 | ) |  |  | (1.0 | ) |  |  | (0.2 | )
Other, net |  |  | (2.6 | ) |  |  | (1.6 | ) |  |  | (0.1 | ) |  |  | 0.2 |  |  |  | — |  |  |  | 0.1 |
Effective tax rate |  |  | 27.5 | % |  |  | 25.0 | % |  |  | 36.7 | % |  |  | 37.9 | % |  |  | 35.5 | % |  |  | 38.7 | %
The effective tax rates in 2017 for the Companies reflect the completion of audits by state tax authorities that resulted in the recognition of previously unrecognized tax benefits. At December 31, 2016, Virginia Power’s unrecognized tax benefits included state refund claims for open tax years through 2011. Management believed settlement of the claims, including interest thereon, within the next twelve months was remote. In June 2017, Virginia Power received and accepted a cash offer to settle the refund claims. As a result of the settlement, Virginia Power decreased its unrecognized tax benefits by $8 million, and recognized a $2 million tax benefit, which impacted its effective tax rate. Also in connection with this settlement, Virginia Power realized interest income of $11 million, which is reflected in other income in the Consolidated Statements of Income. Otherwise, at June 30, 2017, there have been no material changes in the Companies' unrecognized tax benefits or possible changes that could reasonably be expected to occur during the next twelve months. See Note 5 to the Consolidated Financial Statements in the Companies' Annual Report on Form 10-K for the year ended December 31, 2016 for a discussion of these unrecognized tax benefits.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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