Income Tax (Tables)

3 Months Ended

Mar. 31, 2024

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, 2024 and 2023 is as follows:

	For the Three Months Ended March 31,
	Con Edison				CECONY
(% of Pre-tax income)	2024		2023		2024		2023
STATUTORY TAX RATE
Federal	21	%	21	%	21	%	21	%
Changes in computed taxes resulting from:
State income tax, net of federal income taxes	5		5		5		5
Amortization of excess deferred federal income taxes	(6)		(3)		(5)		(6)
Cost of removal	1		—		1		1
Allowance for uncollectible accounts, net of COVID-19 assistance	(1)		—		(1)		(1)
Impacts from the sale of the Clean Energy Businesses:
Deferred unamortized ITC recognized on sale of subsidiary	—		(7)		—		—
Changes in state apportionments, net of federal income taxes	—		(3)		—		—
Valuation allowance on state NOLs, net of federal income tax	—		1		—		—
Effective tax rate	20	%	14	%	21	%	20	%