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Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2022
Related Party Transactions [Abstract]  
Summary of Costs of Administrative and Other Services Provided and Received
The costs of administrative and other services provided by CECONY to, and received by it from, Con Edison and its other subsidiaries for the years ended December 31, 2022, 2021 and 2020 were as follows:
CECONY
(Millions of Dollars)202220212020
Cost of services provided$135$137$128
Cost of services received756866