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Commitments and Contingencies (Tables) | 3 Months Ended
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Mar. 31, 2018
Commitments And Contingencies Disclosure [Abstract] |
Schedule Of Subsidiary Guarantees | At March 31, 2018, Dominion Energy had issued the following subsidiary guarantees:
|  | Maximum Exposure |
(millions) |  |  |  |
Commodity transactions(1) |  | $ | 2,149 |
Nuclear obligations(2) |  |  | 228 |
Cove Point(3) |  |  | 1,900 |
Solar(4) |  |  | 942 |
Other(5) |  |  | 551 |
Total(6) |  | $ | 5,770 |
(1) | Guarantees related to commodity commitments of certain subsidiaries. These guarantees were provided to counterparties in order to facilitate physical and financial transaction-related commodities and services.
(2) | Guarantees related to certain DGI subsidiaries regarding all aspects of running a nuclear facility.
(3) | Guarantees related to Cove Point, in support of terminal services, transportation and construction. Cove Point has two guarantees that have no maximum limit and, therefore, are not included in this amount.
(4) | Includes guarantees to facilitate the development of solar projects. Also includes guarantees entered into by DGI on behalf of certain subsidiaries to facilitate the acquisition and development of solar projects.
(5) | Guarantees related to other miscellaneous contractual obligations such as leases, environmental obligations, construction projects and insurance programs. Due to the uncertainty of workers’ compensation claims, the parental guarantee has no stated limit. Also included are guarantees related to certain DGI subsidiaries' obligations for equity capital contributions and energy generation associated with Fowler Ridge and NedPower. As of March 31, 2018, Dominion Energy's maximum remaining cumulative exposure under these equity funding agreements is $10 million through 2019 and its maximum annual future contributions could range from approximately $4 million to $6 million.
(6) | Excludes Dominion Energy's guarantee for the construction of a new corporate office property as discussed in Note 22 to the Consolidated Financial Statements in the Companies' Annual Report on Form 10-K for the year ended December 31, 2017.

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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12265-110248 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248 + Details
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