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Leases (Lease Assets and Liabilities Recorded in Consolidated Balance Sheets) (Parenthetical) (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease assets | [1] | $ 415 | $ 506
Finance lease assets, accumulated amortization |  | 127 | 129
Operating lease liabilities | [2] | $ 39 | $ 44
Operating Lease Liability Current Statement Of Financial Position [Extensible List] |  | Other Liabilities, Current | Other Liabilities, Current
Finance lease liabilities | [3] | $ 46 | $ 36
Finance Lease Liability Current Statement Of Financial Position [Extensible List] |  | Long-Term Debt and Lease Obligation, Current | Long-Term Debt and Lease Obligation, Current
Operating lease liabilities | [4] | $ 514 | $ 464
Operating Lease Liability Noncurrent Statement Of Financial Position [Extensible List] |  | Deferred Credits and Other Liabilities | Deferred Credits and Other Liabilities
Finance lease liabilities | [5] | $ 104 | $ 112
Finance Lease Liability Noncurrent Statement Of Financial Position [Extensible List] |  | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent
Non-Current Assets Held for Sale |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Finance lease assets, accumulated amortization |  | $ 106 | $ 77
Other Deferred Charges And Other Assets |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease assets |  | 394 | 479
Other Current Liabilities |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease liabilities |  | 34 | 38
Securities Due Within One Year |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Finance lease liabilities |  | 42 | 33
Other Deferred Credits and Other Liabilities |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease liabilities |  | 494 | 439
Other Long-Term Debt |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Finance lease liabilities |  | 91 | 100
Virginia Electric and Power Company |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease assets | [1] | 294 | 256
Finance lease assets, accumulated amortization |  | 33 | 18
Operating lease liabilities | [2] | $ 21 | $ 25
Operating Lease Liability Current Statement Of Financial Position [Extensible List] |  | Other Liabilities, Current | Other Liabilities, Current
Finance lease liabilities | [3] | $ 17 | $ 13
Finance Lease Liability Current Statement Of Financial Position [Extensible List] |  | Long-Term Debt and Lease Obligation, Current | Long-Term Debt and Lease Obligation, Current
Operating lease liabilities | [4] | $ 273 | $ 227
Operating Lease Liability Noncurrent Statement Of Financial Position [Extensible List] |  | Deferred Credits and Other Liabilities | Deferred Credits and Other Liabilities
Finance lease liabilities | [5] | $ 65 | $ 57
Finance Lease Liability Noncurrent Statement Of Financial Position [Extensible List] |  | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent
Virginia Electric and Power Company | Other Deferred Charges And Other Assets |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease assets |  | $ 394 | $ 479
Virginia Electric and Power Company | Other Current Liabilities |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease liabilities |  | 34 | 38
Virginia Electric and Power Company | Securities Due Within One Year |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Finance lease liabilities |  | 42 | 33
Virginia Electric and Power Company | Other Deferred Credits and Other Liabilities |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Operating lease liabilities |  | 494 | 439
Virginia Electric and Power Company | Other Long-Term Debt |  |  |
Lessee Lease Disclosure [Line Items] |  |  |
Finance lease liabilities |  | $ 91 | $ 100
[1] | Dominion Energy includes $394 million and $479 million at December 31, 2022 and 2021, respectively, in other deferred charges and other assets, with the remaining balance in noncurrent assets held for sale, in its Consolidated Balance Sheets. Virginia Power's balances are included in other deferred charges and other assets in its Consolidated Balance Sheets.
[2] | Dominion Energy includes $34 million and $38 million at December 31, 2022 and 2021, respectively, in other current liabilities, with the remaining balance in current liabilities held for sale, in its Consolidated Balance Sheets. Virginia Power's balances are in other current liabilities in its Consolidated Balance Sheets.
[3] | Dominion Energy includes $42 million and $33 million at December 31, 2022 and 2021, respectively, in securities due within one year, with the remaining balance in current liabilities held for sale, in its Consolidated Balance Sheets. Virginia Power's balances are included in securities due within one year in its Consolidated Balance Sheets.
[4] | Dominion Energy includes $494 million and $439 million at December 31, 2022 and 2021, respectively, in other deferred credits and other liabilities, with the remaining balance in noncurrent liabilities held for sale, in its Consolidated Balance Sheets. Virginia Power's balances are included in other deferred credits and other liabilities in its Consolidated Balance Sheets.
[5] | Dominion Energy includes $91 million and $100 million at December 31, 2022 and 2021, respectively, in other long-term debt, with the remaining balance in noncurrent liabilities held for sale, in its Consolidated Balance Sheets. Virginia Power's balances are included in other long-term debt in its Consolidated Balance Sheets.

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