XML 75 R61.htm IDEA: XBRL DOCUMENT
v3.22.2

Regulatory Matters - Regulatory Liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | $ 4,608 | $ 4,381
Regulatory liabilities – current | 555 | 185
Total Regulatory Liabilities | 5,163 | 4,566
Regulatory assets | 3,659 | 3,639
MTA power reliability deferral |  |
Regulatory Liabilities [Line Items] |  |
Regulatory assets | 116 | 140
Gas Service Line Deferred Costs |  |
Regulatory Liabilities [Line Items] |  |
Regulatory assets | 108 | 100
Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 4,110 | 3,921
Regulatory liabilities – current | 463 | 134
Regulatory assets | 3,336 | 3,316
Future income tax |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 1,868 | 1,984
Allowance for cost of removal less salvage |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 1,223 | 1,199
Unrecognized pension and other postretirement costs |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 346 | 32
Net unbilled revenue deferrals |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 157 | 209
Pension and other postretirement benefit deferrals |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 120 | 102
Deferred derivative gains - long term |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 129 | 61
Net proceeds from sale of property |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 86 | 103
TCJA net benefits |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 62 | 125
System benefit charge carrying charge |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 69 | 70
Property tax refunds |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 35 | 35
Sales and use tax refunds |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 29 | 17
BQDM and REV Demo reconciliations |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 24 | 25
Earnings sharing - electric, gas and steam |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 13 | 13
Settlement of gas proceedings |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 9 | 12
Workers' compensation |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 10 | 8
Energy efficiency portfolio standard unencumbered funds |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 5 | 15
Settlement of prudence proceeding |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 6 | 6
Other |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 417 | 365
Deferred derivative gains - short term |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | 491 | 142
Refundable energy costs |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | 46 | 32
Revenue decoupling mechanism |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | 18 | 11
CECONY | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 4,110 | 3,921
Regulatory liabilities – current | 463 | 134
Total Regulatory Liabilities | 4,573 | 4,055
Regulatory assets | 3,336 | 3,316
CECONY | Subsidiaries | MTA power reliability deferral |  |
Regulatory Liabilities [Line Items] |  |
Regulatory assets | 116 | 140
CECONY | Subsidiaries | Gas Service Line Deferred Costs |  |
Regulatory Liabilities [Line Items] |  |
Regulatory assets | 108 | 100
CECONY | Future income tax | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 1,729 | 1,840
CECONY | Allowance for cost of removal less salvage | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 1,051 | 1,033
CECONY | Unrecognized pension and other postretirement costs | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 283 | 0
CECONY | Net unbilled revenue deferrals | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 157 | 209
CECONY | Pension and other postretirement benefit deferrals | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 75 | 55
CECONY | Deferred derivative gains - long term | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 117 | 55
CECONY | Net proceeds from sale of property | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 86 | 103
CECONY | TCJA net benefits | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 60 | 123
CECONY | System benefit charge carrying charge | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 66 | 63
CECONY | Property tax refunds | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 35 | 35
CECONY | Sales and use tax refunds | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 28 | 16
CECONY | BQDM and REV Demo reconciliations | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 21 | 22
CECONY | Earnings sharing - electric, gas and steam | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 10 | 10
CECONY | Settlement of gas proceedings | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 9 | 12
CECONY | Workers' compensation | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 10 | 8
CECONY | Energy efficiency portfolio standard unencumbered funds | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 7 | 19
CECONY | Settlement of prudence proceeding | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 6 | 6
CECONY | Other | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – noncurrent | 360 | 312
CECONY | Deferred derivative gains - short term | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | 451 | 132
CECONY | Refundable energy costs | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | 12 | 2
CECONY | Revenue decoupling mechanism | Subsidiaries |  |
Regulatory Liabilities [Line Items] |  |
Regulatory liabilities – current | $ 0 | $ 0

X
- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
Name: | us-gaap_RegulatoryAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
Name: | us-gaap_RegulatoryLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_RegulatoryLiabilitiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
Name: | us-gaap_RegulatoryLiabilityCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_RegulatoryLiabilityNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=ed_MTAPowerReliabilityDeferralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=ed_GasServiceLineDeferredCostsMember
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_RegulatoryLiabilityAxis=us-gaap_DeferredIncomeTaxChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=us-gaap_AssetRetirementObligationCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_UnrecognizedOtherPostretirementBenefitsCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_NetUnbilledRevenueDeferralsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_PensionAndOtherPostRetirementBenefitsDeferralsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_DeferredDerivativeGainsLongTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_NetProceedsFromSaleOfPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_TaxCutsAndJobsActOf2017NetBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_SystemBenefitChargeCarryingChargeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_PropertyTaxRefundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_SalesAndUseTaxRefundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_BQDMAndREVDemoReconciliationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_ElectricExcessEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_SettlementofGasProceedingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_WorkersCompensationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_EnergyEfficiencyPortfolioStandardUnencumberedFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_PrudenceProceedingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_OtherRegulatoryLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_DeferredDerivativeGainsCurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_RefundableEnergyCostCurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=ed_RevenueDecouplingMechanismMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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