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Derivative Instruments and Hedging Activities - Hedged Volume of Derivative Transactions (Details) | Mar. 31, 2023 gal MWh MW MMBTU
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Electric Energy (MWh) |
Derivatives, Fair Value [Line Items] |
Notional amount | MWh | 30,093,325
Capacity (MW) |
Derivatives, Fair Value [Line Items] |
Notional amount | MW | 48,600
Natural Gas (Dt) |
Derivatives, Fair Value [Line Items] |
Notional amount | MMBTU | 273,950,000
Refined Fuels (gallons) |
Derivatives, Fair Value [Line Items] |
Notional amount | gal | 4,116,000
CECONY | Electric Energy (MWh) | Subsidiaries |
Derivatives, Fair Value [Line Items] |
Notional amount | MWh | 28,352,725
CECONY | Capacity (MW) | Subsidiaries |
Derivatives, Fair Value [Line Items] |
Notional amount | MW | 41,400
CECONY | Natural Gas (Dt) | Subsidiaries |
Derivatives, Fair Value [Line Items] |
Notional amount | MMBTU | 260,910,000
CECONY | Refined Fuels (gallons) | Subsidiaries |
Derivatives, Fair Value [Line Items] |
Notional amount | gal | 4,116,000

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