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Contract With Customer, Receivable, Expected Amount

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- Definition

Proceeds from Government Assistance

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- Definition

Revenue From Contracts With Customer, Late Payment Charges And Fees

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- Definition

Revenue From Contracts With Customer, Late Payment Charges And Fees, Reserve

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Amount of direct write-downs of accounts receivable charged against the allowance.

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The carrying amount of deferred costs.

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A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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Regulatory Matters - COVID-19 Regulatory Matters (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		4 Months Ended	12 Months Ended		13 Months Ended
	Apr. 30, 2022	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Jan. 31, 2023	Dec. 31, 2022	Nov. 30, 2021	Jan. 01, 2021
Public Utilities, General Disclosures [Line Items]
Reserve adjustments		$ 19.0	$ 33.0
Subsidiaries
Public Utilities, General Disclosures [Line Items]
Reserve adjustments		20.0	$ 33.0
CECONY \| State Office of Temporary Disability Assistance (OTDA)
Public Utilities, General Disclosures [Line Items]
Proceeds from government assistance		5.9
CECONY \| State Office of Temporary Disability Assistance (OTDA) \| Subsequent Event
Public Utilities, General Disclosures [Line Items]
Proceeds from government assistance	$ 13.7
Income tax credit	$ 12.2
COVID-19
Public Utilities, General Disclosures [Line Items]
Deferred costs		0.8
COVID-19 \| CECONY \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Reserve for customer arrearages									$ 7.0
COVID-19 \| CECONY \| Gas \| Subsidiaries \| Scenario, Forecast
Public Utilities, General Disclosures [Line Items]
Late payment charges and fees							$ 4.0	$ 7.0
COVID-19 \| CECONY \| Electric and Gas Transmission Projects \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Reserve adjustments		260.0
Write off				$ 1.0
COVID-19 \| CECONY \| Electric \| Subsidiaries \| Scenario, Forecast
Public Utilities, General Disclosures [Line Items]
Late payment charges and fees							$ 19.0	$ 43.0
COVID-19 \| O&R \| Gas \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Late payment charges and fees					$ 2.4
Reserve adjustments		$ 6.0
Write off				$ 3.0
COVID-19 \| O&R \| Electric \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Late payment charges and fees						$ 1.7
Summer Cooling Credit Program \| Residential Customers \| COVID-19 \| CECONY \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Expected deferred revenue										$ 63.4
Cost of the program, recovery period		5 years