Income Tax (Tables)

9 Months Ended

Sep. 30, 2021

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 September 30, 2021 and 2020 is as follows:

	Con Edison				CECONY
(% of Pre-tax income)	2021		2020		2021		2020
STATUTORY TAX RATE
Federal	21	%	21	%	21	%	21	%
Changes in computed taxes resulting from:
State income tax, net of federal income tax benefit	5		6		5		5
Amortization of excess deferred federal income taxes	(7)		(7)		(8)		(8)
Taxes attributable to non-controlling interests	4		(1)		—		—
Cost of removal	1		1		1		2
Other plant-related items	(1)		(1)		(1)		(1)
Renewable energy credits	(1)		(1)		—		—
Injuries and damages reserve	—		—		1		—
Prior period federal income tax return adjustments	(1)		—		(1)		—
Other	—		1		—		—
Effective tax rate	21	%	19	%	18	%	19	%

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 nine months ended September 30, 2021 and 2020 is as follows:

	Con Edison				CECONY
(% of Pre-tax income)	2021		2020		2021		2020
STATUTORY TAX RATE
Federal	21	%	21	%	21	%	21	%
Changes in computed taxes resulting from:
State income tax, net of federal income tax benefit	5		5		5		5
Amortization of excess deferred federal income taxes	(11)		(10)		(11)		(10)
Taxes attributable to non-controlling interests	3		(1)		—		—
Cost of removal	2		2		2		2
Other plant-related items	(1)		(1)		(1)		(2)
Renewable energy credits	(2)		(2)		—		—
Other	(1)		—		—		1
Effective tax rate	16	%	14	%	16	%	17	%