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Electricity and Gas Purchase Agreements - Summary of Capacity, Energy and Other Fixed Payments (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | $ 596 | $ 552 | $ 486
Astoria Generating Company |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 45 | 20 | 26
Brooklyn Navy Yard |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 165 | 139 | 113
Gas transportation and storage |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 386 | 393 | 347
CECONY |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 550 | 506 | 446
CECONY | Astoria Generating Company |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 45 | 20 | 26
CECONY | Brooklyn Navy Yard |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | 165 | 139 | 113
CECONY | Gas transportation and storage |  |  |
Long-term Contract for Purchase of Electric Power [Line Items] |  |  |
Capacity, energy and other fixed payments | $ 340 | $ 347 | $ 307

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- Definition Long-term Contract for Purchase of Capacity and Energy, Amount of Fixed Payments + References No definition available. + Details
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- 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
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- Details
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- Details
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- Details
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- Details
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