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Related Party Transactions (Tables) | 9 Months Ended
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Sep. 30, 2025
Related Party Transactions [Abstract] |
Schedule 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 three and nine months ended September 30, 2025 and 2024 were as follows:
| For the Three Months Ended September 30,
| CECONY
(Millions of Dollars) | 2025 | 2024
Cost of services provided | $41 | $39
Cost of services received | $21 | $21
| For the Nine Months Ended September 30,
| CECONY
(Millions of Dollars) | 2025 | 2024
Cost of services provided | $118 | $106
Cost of services received | $64 | $62

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 + Details
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