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Acquisitions and Dispositions - (Schedule of Capital Expenditures and Significant Noncash Items Reported As Discontinued Operations) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Significant noncash items |  |  |  |
Depreciation, depletion and amortization |  | $ 621 |  | $ 622
Accrued capital expenditures | [1] | 753 |  | 671
East Ohio | Enbridge |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Capital expenditures |  | 65 | [2] | 98
Significant noncash items |  |  |  |
Depreciation, depletion and amortization |  | 0 | [2] | 35
Accrued capital expenditures |  |  |  | 30
PSNC | Enbridge |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Capital expenditures |  | 82 |  | 44
Significant noncash items |  |  |  |
Depreciation, depletion and amortization |  | 0 |  | 22
Accrued capital expenditures |  | 55 |  | 22
Questar Gas and Wexpro | Enbridge |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Capital expenditures |  | 100 |  | 85
Significant noncash items |  |  |  |
Depreciation, depletion and amortization |  | 0 |  | 44
Accrued capital expenditures |  | 20 |  | 18
Other Sales | Tredegar Solar Fund I, LLC |  |  |  |
Significant noncash items |  |  |  |
Depreciation, depletion and amortization |  | $ 0 |  | $ 1
[1] | See Notes 3 and 17 for noncash financing activities related to debt assumed with closing of the East Ohio Transaction and the transfer of property associated with the settlement of litigation.
[2] | Represents amounts attributable to Dominion Energy prior to the closing of the East Ohio Transaction which closed on March 6, 2024.

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