Income Tax (Tables)

3 Months Ended

Mar. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Income Tax Reconciliation

Reconciliation of the difference between income tax expense and the amount computed by applying the prevailing statutory income tax rate to income before income taxes for the three months ended March 31, 2025 and 2024 is as follows:

	For the Three Months Ended March 31,
	Con Edison						CECONY
	2025			2024			2025			2024
(Millions of Dollars) (% of Pre-tax income)	$	%		$	%		$	%		$	%
STATUTORY TAX RATE
Federal	$217	21.0	%	$190	21.0	%	$204	21.0	%	$184	21.0	%
Changes in computed taxes resulting from:
State income tax, net of federal income taxes	55	5.4		47	5.2		51	5.3		45	5.2
MTA Surcredit amortization, net of federal taxes	(13)	(1.3)		—	—		(12)	(1.3)		—	—
Tax Credits (R&D and renewable energy tax credits)	(4)	(0.4)		(6)	(0.7)		(3)	(0.3)		(3)	(0.4)
Amortization of excess deferred federal income taxes	(12)	(1.1)		(50)	(5.6)		(10)	(1.0)		(49)	(5.6)
Allowance for uncollectible accounts, net of COVID-19 assistance	(13)	(1.2)		(5)	(0.6)		(13)	(1.3)		(5)	(0.6)
Cost of removal	11	1.0		11	1.3		10	1.0		11	1.2
Other	1	0.1		(3)	(0.3)		—	—		(2)	(0.2)
Effective tax rate	$242	23.5	%	$184	20.3	%	$227	23.4	%	$181	20.6	%