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Commitments and Contingencies (Lease Commitments) (Detail) $ in Millions | Dec. 31, 2017 USD ($)
--- | ---
Loss Contingencies [Line Items] |  |
2018 | $ 68 | [1]
2019 | 63 | [1]
2020 | 56 | [1]
2021 | 48 | [1]
2022 | 39 | [1]
Thereafter | 361 | [1]
Total | 635 | [1]
Virginia Electric and Power Company |  |
Loss Contingencies [Line Items] |  |
2018 | 34 |
2019 | 31 |
2020 | 27 |
2021 | 22 |
2022 | 15 |
Thereafter | 28 |
Total | 157 |
Dominion Gas Holdings, LLC |  |
Loss Contingencies [Line Items] |  |
2018 | 15 |
2019 | 13 |
2020 | 10 |
2021 | 9 |
2022 | 7 |
Thereafter | 41 |
Total | $ 95 |
[1] | Amounts include a lease agreement for the Dominion Energy Questar corporate office, which is accounted for as a capital lease. At December 31, 2017 and 2016, the Consolidated Balance Sheets include $27 million and $30 million, respectively, in property, plant and equipment and $33 million and $35 million, respectively, in other deferred credits and other liabilities. The Consolidated Statements of Income include $3 million and less than $1 million recorded in depreciation, depletion and amortization for the years ended December 31, 2017 and 2016.

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