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Leases (Tables)
 9 Months Ended
Sep. 30, 2025
Leases [Abstract]  
Schedule of Lease Costs, Cash Flows and Other Related Information
Operating lease cost and cash paid for amounts included in the measurement of lease liabilities for the three and nine months ended September 30, 2025 and 2024 were as follows:
For the Three Months Ended September 30,
Con EdisonCECONY
(Millions of Dollars)2025202420252024
Operating lease cost$17$17$17$17
Operating lease cash flows$7$6$6$6


For the Nine Months Ended September 30,
Con EdisonCECONY
(Millions of Dollars)2025202420252024
Operating lease cost$51$50$51$49
Operating lease cash flows$15$15$15$14