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Number Of Deferred Projects

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Number Of Miles In Pipeline Construction

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Number Of Tax Equity Projects

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount, after tax, of other comprehensive income (loss) (OCI) for proportionate share of equity method investee's OCI.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Summary of Significant Accounting Policies and Other Matters - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2024 USD ($) mi	Sep. 30, 2024 USD ($) project	Sep. 30, 2024 USD ($) project	Mar. 01, 2023 project
Disposal Group, Held-for-sale, Not Discontinued Operations \| Clean Energy Businesses
Schedule of Equity Method Investments [Line Items]
Tax equity projects \| project		3	3	2
CET Electric \| Mountain Valley Pipeline LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest (in percent)		6.60%	6.60%
Mountain Valley Pipeline LLC \| Con Edison Gas Pipeline and Storage, LLC
Schedule of Equity Method Investments [Line Items]
Number of miles in pipeline construction \| mi	303
Aggregate project cost	$ 8,100
Equity method investments		$ 165	$ 165
Income (loss) from equity method investments		8	21
Income (loss) from equity method Investments, after tax		$ 6	15
Cash contributions for equity method investments			$ 530
Broken Bow II \| Clean Energy Businesses \| Electric Energy (MWh)
Schedule of Equity Method Investments [Line Items]
Deferred projects \| project		1	1	1
Broken Bow II \| Clean Energy Businesses \| Disposal Group, Held-for-sale, Not Discontinued Operations \| Clean Energy Businesses
Schedule of Equity Method Investments [Line Items]
Number of projects \| project				3