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- Definition

Other Customer Provided Capital Rate

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- Definition

Public Utilities, Number Of Customers Affected

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- Definition

Regulatory Assets, Deferred Derivative Losses, Current, Recovery Period

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- Definition

Regulatory Assets, Deferred Derivative Losses, Noncurrent, Recovery Period

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- Definition

Regulatory Assets, Recovery Period

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- Definition

Return On Regulatory Assets

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- Definition

Tax Cuts And Jobs Act Of 2017, Change In Tax Rate, Regulatory Liabilities, Income Tax Benefit

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Tax Cuts And Jobs Act Of 2017, Income Tax Credit

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Tax Cuts And Jobs Act Of 2017, Net Benefit Amortization, Allocation Period

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

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- Definition

The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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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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- Definition

The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Regulatory Matters - Other Regulatory Matters (Details) customer in Thousands, $ in Millions		1 Months Ended			12 Months Ended			36 Months Ended
	Jan. 01, 2022 USD ($)	Jul. 31, 2021 USD ($)	Aug. 31, 2020 customer	Jul. 31, 2019 customer	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2022 USD ($)
Public Utilities, General Disclosures [Line Items]
Regulatory liabilities					$ 6,027.0	$ 4,381.0		$ 6,027.0
Other customer-provided capital rate					1.75%	1.80%
Return on regulatory assets					$ 2,304.0	$ 1,962.0
Deferred derivative losses, current, recovery period (in years)					1 year
Deferred derivative losses, noncurrent, recovery period (in years)					3 years
Net unbilled revenue deferrals
Public Utilities, General Disclosures [Line Items]
Regulatory liabilities					$ 204.0	209.0		204.0
CECONY
Public Utilities, General Disclosures [Line Items]
Net regulatory assets					1,150.0	1,176.0		1,150.0
Regulatory liabilities					5,481.0	3,921.0		5,481.0
Return on regulatory assets					$ 2,097.0	1,751.0
CECONY \| Commodity
Public Utilities, General Disclosures [Line Items]
Regulatory assets, recovery period					4 years
CECONY \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Regulatory liabilities					$ 5,481.0	3,921.0		5,481.0
CECONY \| Net unbilled revenue deferrals \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Regulatory liabilities					$ 204.0	209.0		204.0
CECONY \| Electric \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Income tax benefit to be credited to customers resulting from TCJA								$ 377.0
TCJA, net benefit amortization, allocation period								3 years
CECONY \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Number of customers affected with interrupted service \| customer			330
Litigation settlement, amount awarded to other party		$ 75.1
Litigation settlement, period (in years)					35 years
CECONY \| Electric \| Protected Portion
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								$ 1,663.0
CECONY \| Electric \| Protected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								1,663.0
CECONY \| Electric \| Unprotected Portion
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								$ 784.0
CECONY \| Electric \| Unprotected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
TCJA, net benefit amortization, allocation period								5 years
Increase in regulatory liability resulting from TCJA								$ 784.0
CECONY \| Gas \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Income tax benefit to be credited to customers resulting from TCJA								$ 63.0
TCJA, net benefit amortization, allocation period								2 years
CECONY \| Gas \| Protected Portion
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								$ 725.0
CECONY \| Gas \| Protected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								$ 725.0
CECONY \| Gas \| Unprotected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
TCJA, net benefit amortization, allocation period								5 years
Increase in regulatory liability resulting from TCJA								$ 107.0
CECONY \| NYSPSC \| Steam \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA							$ 185.0
O&R
Public Utilities, General Disclosures [Line Items]
Net regulatory assets					$ 22.0	26.0		22.0
O&R \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Number of customers affected with interrupted service \| customer			200
Litigation settlement, amount awarded to other party		7.0
O&R \| Electric and Gas \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Income tax benefit to be credited to customers resulting from TCJA								$ 22.0
TCJA, net benefit amortization, allocation period								3 years
O&R \| Electric and Gas \| Protected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Increase in regulatory liability resulting from TCJA								$ 123.0
O&R \| Electric and Gas \| Unprotected Portion \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
TCJA, net benefit amortization, allocation period	6 years
Increase in regulatory liability resulting from TCJA	$ 34.0
RECO
Public Utilities, General Disclosures [Line Items]
Return on regulatory assets					$ 21.0	$ 25.0
Manhattan \| CECONY \| Electric \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Number of customers affected with interrupted service \| customer			190	72
Brooklyn \| CECONY \| Electric \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Number of customers affected with interrupted service \| customer				30
Foregone Customer Recovery \| CECONY \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		25.0
Foregone Customer Recovery \| O&R \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		2.5
Ongoing Operations And Maintenance Costs \| CECONY \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		15.8
Ongoing Operations And Maintenance Costs \| O&R \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		2.9
Previously Incurred Or Accrued Costs \| CECONY \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		34.3
Previously Incurred Or Accrued Costs \| O&R \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		1.6
Negative Revenue Adjustment \| CECONY \| Electric \| Rainey Outages \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		5.0
Negative Revenue Adjustment \| CECONY \| Electric \| 2019 Manhattan and Brooklyn Outages \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		15.0
Costs To Reimburse Customers For Food And Medicine Spoilage \| CECONY \| Electric \| Tropical Storm \| Subsidiaries
Public Utilities, General Disclosures [Line Items]
Litigation settlement, amount awarded to other party		$ 14.3