Aggregate Project Cost

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- Definition

Number Of Miles In Pipeline Construction

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

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

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- Definition

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

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- Definition

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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Summary of Significant Accounting Policies and Other Matters - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended
	Jun. 30, 2024 USD ($) mi	Mar. 31, 2025 USD ($) shares	Mar. 31, 2024 shares
Schedule of Equity Method Investments [Line Items]
Anti-dilutive effect (shares) \| shares		0	0
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 investment, ownership percent (in percent)		600.00%
Equity method investments		$ 164
Cash contributions for equity method investments		530
Earnings from its equity investment		7
Earnings from its equity investment, after tax		$ 5