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Derivative Instruments and Hedging Activities - Hedged Volume of Derivative Transactions (Details) | Dec. 31, 2023 MMBTU MW gal MWh
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Electric Energy |
Derivatives, Fair Value [Line Items] |
Notional amount | MWh | 34,892,535
Capacity |
Derivatives, Fair Value [Line Items] |
Notional amount | MW | 44,400
Natural Gas |
Derivatives, Fair Value [Line Items] |
Notional amount | MMBTU | 325,690,000
Refined Fuels |
Derivatives, Fair Value [Line Items] |
Notional amount | gal | 3,780,000
CECONY | Electric Energy |
Derivatives, Fair Value [Line Items] |
Notional amount | MWh | 32,315,225
CECONY | Capacity |
Derivatives, Fair Value [Line Items] |
Notional amount | MW | 34,500
CECONY | Natural Gas |
Derivatives, Fair Value [Line Items] |
Notional amount | MMBTU | 306,700,000
CECONY | Refined Fuels |
Derivatives, Fair Value [Line Items] |
Notional amount | gal | 3,780,000

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