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Acquisitions and Dispositions - (Schedule Of Major Classes Of Assets And Liabilities Relating To The Disposal Groups Reported As Held For Sale) (Parenthetical) (Detail) - Enbridge - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
East Ohio |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and Cash Equivalents |  | $ 4
Regulatory assets |  | 75
Goodwill |  | 1,500
Other deferred charges and other assets, including regulatory assets |  | 781
Regulatory liabilities |  | 54
Other deferred credits and liabilities including regulatory liabilities |  | 711
PSNC |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Regulatory assets | $ 68 | 89
Goodwill | 673 | 673
Other deferred charges and other assets, including regulatory assets | 83 | 86
Regulatory liabilities | 42 | 44
Other deferred credits and liabilities including regulatory liabilities | 430 | 435
PSNC | Maximum |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and Cash Equivalents | 1 | 2
Questar Gas and Wexpro |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cash and Cash Equivalents | 39 | 26
Regulatory assets | 53 | 297
Goodwill | 642 | 720
Other deferred charges and other assets, including regulatory assets | 44 | 39
Regulatory liabilities | 56 | 55
Other deferred credits and liabilities including regulatory liabilities | $ 498 | $ 502

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