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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2022
Accounting Policies [Abstract] |
Reconciliation of Total Cash, Restricted Cash and Equivalents | The following table provides a reconciliation of the total cash, restricted cash and equivalents reported within the Companies’ Consolidated Balance Sheets to the corresponding amounts reported within the Companies’ Consolidated Statements of Cash Flows for the nine months ended September 30, 2022 and 2021:
|  | Cash, Restricted Cash and Equivalents at End of Period |  |  | Cash, Restricted Cash and Equivalents at Beginning of Period |
|  | September 30, 2022 |  |  | September 30, 2021 |  |  | December 31, 2021 |  |  | December 31, 2020 |
(millions) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dominion Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents(1) |  | $ | 163 |  |  | $ | 195 |  |  | $ | 283 |  |  | $ | 179 |
Restricted cash and equivalents(2)(3) |  |  | 177 |  |  |  | 72 |  |  |  | 125 |  |  |  | 68 |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  | $ | 340 |  |  | $ | 267 |  |  | $ | 408 |  |  | $ | 247 |
Virginia Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 18 |  |  | $ | 38 |  |  | $ | 26 |  |  | $ | 35 |
Restricted cash and equivalents(3) |  |  | 2 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Cash, restricted cash and equivalents shown in the Consolidated Statements of Cash Flows |  | $ | 20 |  |  | $ | 39 |  |  | $ | 26 |  |  | $ | 35 |
(1) | At September 30, 2021 and December 31, 2020, Dominion Energy had $15 million and $7 million of cash and cash equivalents included in current assets held for sale, respectively. No amounts were included in current assets held for sale at September 30, 2022 and December 31, 2021.
(2) | At September 30, 2021 and December 31, 2020, Dominion Energy had $22 million and $3 million of restricted cash and equivalents included in current assets held for sale, respectively. No amounts were included in current assets held for sale at September 30, 2022 and December 31, 2021.
(3) | Restricted cash and equivalents balances are presented within other current assets in the Companies’ Consolidated Balance Sheets.
Schedule of Supplemental Cash Flow Information | The following table provides supplemental disclosure of cash flow information related to Dominion Energy:
|  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |
(millions) |  |  |  |  |  |  |  |
Significant noncash investing and financing activities:(1) |  |  |  |  |  |  |  |
Accrued capital expenditures |  | $ | 745 |  |  | $ | 374 |
Leases(2) |  |  | 129 |  |  |  | 75 |
(1) | See Note 10 for noncash investing activities related to the acquisition of a noncontrolling interest in Dominion Privatization and Notes 16 and 17 for noncash financing activities related to the remarketing of Series A Preferred Stock and the issuance of common stock and transfer of property associated with the settlement of litigation.
(2) | Includes $29 million and $34 million of financing leases at September 30, 2022 and 2021, respectively, and $100 million and $41 million of operating leases at September 30, 2022 and 2021, respectively.
The following table provides supplemental disclosure of cash flow information related to Virginia Power:
|  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |
(millions) |  |  |  |  |  |  |  |
Significant noncash investing and financing activities: |  |  |  |  |  |  |  |
Accrued capital expenditures |  | $ | 454 |  |  | $ | 238 |
Leases(1) |  |  | 113 |  |  |  | 59 |
Includes $20 million and $24 million of financing leases at September 30, 2022 and 2021, respectively, and $93 million and $35 million of operating leases at September 30, 2022 and 2021, respectively

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