Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2025

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table presents, for the three months ended March 31, 2025 and 2024, revenue from contracts with customers as defined in ASC Topic 606, "Revenue from Contracts with Customers," as well as additional revenue from sources other than contracts with customers, disaggregated by major source.

	For the Three Months Ended March 31, 2025			For the Three Months Ended March 31, 2024
(Millions of Dollars)	Revenues from contracts with customers	Other revenues (a)	Total operating revenues	Revenues from contracts with customers	Other revenues (a)	Total operating revenues
CECONY
Electric	$2,768	($82)	2,686	$2,439	$2	$2,441
Gas	1,398	3	1,401	1,229	14	1,243
Steam	355	(1)	354	294	(7)	287
Total CECONY	$4,521	$(80)	$4,441	$3,962	$9	$3,971
O&R
Electric	218	(3)	215	$200	$(5)	$195
Gas	147	(6)	141	116	(3)	113
Total O&R	$365	$(9)	$356	$316	$(8)	$308
Con Edison Transmission	1	—	1	1	—	1
Total Con Edison	$4,887	$(89)	$4,798	$4,279	$1	$4,280

(a)    For the Utilities, this includes primarily revenue from alternative revenue programs, such as the revenue decoupling mechanisms under their New York electric and gas rate plans, and negative revenue adjustments.