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Disposal Group, Including Discontinued Operation, Depreciation And Amortization, After Tax

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Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property, After Tax

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Gain (Loss) On Disposition Of Stock In Subsidiary, After Tax

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Number Of Deferred Projects

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Number Of Solar Projects

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Number Of Tax Equity Projects

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Period To Obtain Counter Party Consent

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Nominal number of units used to calculate payment on derivative.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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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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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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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries.

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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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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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The cash inflow associated with the sale of 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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Period end amount of total net PPE.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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Dispositions - Narrative (Details) $ in Millions		12 Months Ended
Dispositions - Narrative (Details) $ in Millions	Mar. 01, 2023 USD ($) solarProject project	Dec. 31, 2023 USD ($) MWh project	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 01, 2022 USD ($)	Jun. 30, 2021 USD ($)	May 31, 2021	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value of projects sold		$ 49,594	$ 46,752
Gain (loss) on disposition of stock in subsidiary	$ 865
Gain (loss) on disposition of stock in subsidiary, after tax	$ 767
Period to obtain counter party consent (in years)		2 years
Number of solar projects	2	2
Unbilled contracts receivable		$ 4	80	$ 35					$ 11
Electric Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount \| MWh		34,892,535
Clean Energy Businesses \| Renewables Americas, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimate of possible loss		$ 24
Unbilled contracts receivable		4
Clean Energy Businesses \| Renewables Americas, LLC \| Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimate of possible loss		172
Disposal Group, Held-for-sale, Not Discontinued Operations \| Clean Energy Businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration the project is sold	$ 3,993				$ 6,800
Gain (loss) on disposition of stock in subsidiary		865
Gain (loss) on disposition of stock in subsidiary, after tax		$ 767
Number of tax equity projects \| project	2	3
Disposal group, including discontinue operation, transaction costs		$ 12	48
Disposal group, including discontinue operation, transaction costs, after tax		9	$ 35
Depreciation and amortization, before tax		41
Depreciation and amortization, after tax		$ 28
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Crane Project
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Holding period (in years)		5 years
Carrying value of tax equity interest		$ 13
Stagecoach
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity method investment						$ 630		$ 667
Clean Energy Businesses \| Broken Bow II \| Electric Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of deferred projects \| project	1	1
Notional amount \| MWh		75
Clean Energy Businesses \| Subsidiaries
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value of projects sold						$ 192
Gain (loss) on sale of projects				3
Gain on sale, after tax				2
Equity method investment				11
Con Edison Transmission \| Subsidiaries \| Stagecoach
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale				$ 1,225
Percentage of equity interest acquired (in percent)			50.00%				50.00%
CECONY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Carrying value of projects sold		$ 46,646	$ 44,009
CECONY \| Electric Energy
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Notional amount \| MWh		32,315,225
CECONY \| Stagecoach \| Purchased Power Costs \| Equity Method Investee
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of equity interest acquired (in percent)				50.00%