XML 101 R86.htm IDEA: XBRL DOCUMENT
v3.22.1

Revenue Recognition - Additional information (Details) - USD ($) $ in Millions | 3 Months Ended | 13 Months Ended
--- | --- | ---
Mar. 31, 2021 | Jan. 31, 2023 | Dec. 31, 2022
Disaggregation of Revenue [Line Items] |  |  |
Late fee and other fees not collected | $ 18 |  |
CECONY | Subsidiaries |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Late fee and other fees not collected | $ 17 |  |
CECONY | COVID-19 | Subsidiaries | Scenario, Forecast | Electric |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Late payment charges and fees |  | $ 19 | $ 43
CECONY | COVID-19 | Subsidiaries | Scenario, Forecast | Gas |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Late payment charges and fees |  | $ 4 | $ 7

X
- Definition Late Fee Income and Other Fees Not Collected + References No definition available. + Details
Name: | ed_LateFeeIncomeandOtherFeesNotCollected
Namespace Prefix: | ed_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Revenue From Contracts With Customer, Late Payment Charges And Fees + References No definition available. + Details
Name: | ed_RevenueFromContractsWithCustomerLatePaymentChargesAndFees
Namespace Prefix: | ed_
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_DisaggregationOfRevenueLineItems
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: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
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: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
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_PublicUtilityAxis=us-gaap_GasTransmissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |