XML 118 R92.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Regulatory Matters - COVID-19 Regulatory Matters (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2021 | Jan. 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jan. 01, 2021
CECONY | Electric | NYSPSC |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Amount of cost recovery | $ 43.0 |  |  |  | $ 62.0 |  |
CECONY | Gas | NYSPSC |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Amount of cost recovery | $ 7.0 |  |  |  | 11.0 |  |
O&R | NYSPSC |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Amount of cost recovery |  |  |  |  | $ 2.0 | $ 1.7 |
Subsidiaries | CECONY | COVID-19 Arrears Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government Assistance Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag |  |  |  | credits |  |  |
Government assistance |  |  | $ 352.3 | $ 359.9 |  |  |
Subsidiaries | O&R | COVID-19 Arrears Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government Assistance Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag |  |  |  | credits |  |  |
Government assistance |  |  | 2.9 | $ 6.1 |  |  |
Subsidiaries | COVID-19 | CECONY | Electric and Gas Transmission Projects |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  | 13.2 | 164.5 |  |  |
Income tax rate reconciliation, tax credit |  |  | 11.5 | 80.0 |  |  |
Subsidiaries | COVID-19 | CECONY | Electric and Gas Transmission Projects | COVID-19 Arrears Phase 1 Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  |  | 108.4 |  |  |
Subsidiaries | COVID-19 | CECONY | Electric and Gas Transmission Projects | COVID-19 Arrears Phase 2 Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  | 327.6 |  |  |  |
Subsidiaries | COVID-19 | O&R | Electric and Gas Transmission Projects |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  |  | 1.6 |  |  |
Income tax rate reconciliation, tax credit |  |  | 0.7 | 1.3 |  |  |
Subsidiaries | COVID-19 | O&R | Electric and Gas Transmission Projects | COVID-19 Arrears Phase 1 Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  | 0.1 | 3.2 |  |  |
Subsidiaries | COVID-19 | O&R | Electric and Gas Transmission Projects | COVID-19 Arrears Phase 2 Assistance Program |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Government assistance |  |  | $ 2.1 |  |  |  |
Subsidiaries | COVID-19 | Consolidated Edison Company of New York, Inc. And Orange And Rockland Utilities, Inc. |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Reserve for customer arrearages |  |  |  | $ 7.0 |  |  |
Summer Cooling Credit Program | Subsidiaries | Residential Customers | COVID-19 | CECONY |  |  |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |  |  |
Expected deferred revenue |  |  |  |  |  |  | $ 63.4
Cost of the program, recovery period |  | 5 years |  |  |  |  |

X
- Definition Contract With Customer, Cost Of Program, Recovery Period + References No definition available. + Details
Name: | ed_ContractWithCustomerCostOfProgramRecoveryPeriod
Namespace Prefix: | ed_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contract With Customer, Receivable, Expected Amount + References No definition available. + Details
Name: | ed_ContractWithCustomerReceivableExpectedAmount
Namespace Prefix: | ed_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Government Assistance Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag + References No definition available. + Details
Name: | ed_GovernmentAssistanceStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag
Namespace Prefix: | ed_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Public Utilities, Property, Plant And Equipment, Base Rate, Amount Of Cost Recovery + References No definition available. + Details
Name: | ed_PublicUtilitiesPropertyPlantAndEquipmentBaseRateAmountOfCostRecovery
Namespace Prefix: | ed_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue From Contracts With Customer, Late Payment Charges And Fees, Reserve + References No definition available. + Details
Name: | ed_RevenueFromContractsWithCustomerLatePaymentChargesAndFeesReserve
Namespace Prefix: | ed_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of government assistance recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483507/832-10-50-3 + Details
Name: | us-gaap_GovernmentAssistanceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
Name: | us-gaap_IncomeTaxReconciliationTaxCredits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=ed_ConsolidatedEdisonCompanyofNewYorkInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilityAxis=us-gaap_ElectricTransmissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=ed_NewYorkStatePublicServiceCommissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilityAxis=us-gaap_GasTransmissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ed_OrangeAndRocklandUtilitiesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GovernmentAssistanceTypeAxis=ed_COVID19ArrearsAssistanceProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=ed_COVID19Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilityAxis=ed_ElectricAndGasTransmissionProjectsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GovernmentAssistanceTypeAxis=ed_COVID19ArrearsPhase1AssistanceProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GovernmentAssistanceTypeAxis=ed_COVID19ArrearsPhase2AssistanceProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ed_ConsolidatedEdisonCompanyOfNewYorkIncAndOrangeAndRocklandUtilitiesIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ed_ProgramAxis=ed_SummerCoolingCreditProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=ed_ResidentialCustomersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |