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Significant Accounting Policies (Schedule of Supplemental Cash Flow Information) (Detail) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022
Significant noncash investing and financing activities:(1) |  |  |
Accrued capital expenditures |  | $ 884 | $ 745
Leases | [1],[2] | 294 | 129
Virginia Electric and Power Company |  |  |
Significant noncash investing and financing activities:(1) |  |  |
Accrued capital expenditures |  | 646 | 454
Leases | [3] | $ 253 | $ 113
[1] | Includes $51 million and $29 million of financing leases at September 30, 2023 and 2022, respectively, and $243 million and $100 million of operating leases at September 30, 2023 and 2022, respectively.
[2] | See Note 10 for noncash investing activities related to the acquisition of a noncontrolling interest in Dominion Privatization, Note 16 for noncash financing activities related to the remarketing of Series A Preferred Stock and the issuance of common stock associated with the settlement of litigation and Note 17 for noncash financing activities related to the transfer of property associated with the settlement of litigation.
[3] | Includes $44 million and $20 million of financing leases at September 30, 2023 and 2022, respectively, and $209 million and $93 million of operating leases at September 30, 2023 and 2022, respectively.

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