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Related-Party Transactions (Tables) | 3 Months Ended
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Mar. 31, 2018
Virginia Electric and Power Company |
Related Party Transaction [Line Items] |
Schedule of Related Party Transactions | Presented below are Virginia Power's significant transactions with DES and other affiliates:
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
(millions) |  |  |  |  |  |  |  |
Commodity purchases from affiliates |  | $ | 398 |  |  | $ | 212 |
Services provided by affiliates(1) |  |  | 120 |  |  |  | 112 |
Services provided to affiliates |  |  | 6 |  |  |  | 5 |
(1) | Includes capitalized expenditures of $37 million and $34 million for the three months ended March 31, 2018 and 2017, respectively.
Dominion Energy Gas Holdings, LLC |
Related Party Transaction [Line Items] |
Schedule of Related Party Transactions | Management believes the assumptions and methodologies underlying the allocation of general corporate overhead expenses are reasonable.
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
(millions) |  |  |  |  |  |  |  |
Sales of natural gas and transportation and storage services to affiliates |  | $ | 18 |  |  | $ | 18 |
Purchases of natural gas and transportation and storage services from affiliates |  |  | 3 |  |  |  | — |
Services provided by related parties(1) |  |  | 33 |  |  |  | 35 |
Services provided to related parties(2) |  |  | 52 |  |  |  | 39 |
(1) | Includes capitalized expenditures of $10 million and $8 million for the three months ended March 31, 2018 and 2017, respectively.
(2) | Amounts primarily attributable to Atlantic Coast Pipeline, a related-party VIE.
The following table presents affiliated and related party balances reflected in Dominion Energy Gas' Consolidated Balance Sheets:
|  | March 31, 2018 |  |  | December 31, 2017 |
(millions) |  |  |  |  |  |  |  |
Other receivables(1) |  | $ | 17 |  |  | $ | 12 |
Customer receivables from related parties |  |  | — |  |  |  | 1 |
Imbalances receivable from affiliates(2) |  |  | — |  |  |  | 1 |
Affiliated notes receivable(3) |  |  | 19 |  |  |  | 20 |
(1) | Represents amounts due from Atlantic Coast Pipeline, a related-party VIE.
(2) | Amounts are presented in other current assets in Dominion Energy Gas' Consolidated Balance Sheets.
(3) | Amounts are presented in other deferred charges and other assets in Dominion Energy Gas' Consolidated Balance Sheets.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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