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Income Tax (Tables)
 3 Months Ended
Mar. 31, 2020
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, 2020 and 2019 is as follows:

 
Con Edison
CECONY
(% of Pre-tax income)
2020

2019

2020

2019

STATUTORY TAX RATE
 
 
 
 
Federal
21
 %
21
 %
21
 %
21
 %
Changes in computed taxes resulting from:
 
 
 
 
State income tax
4

4

5

5

Taxes attributable to non-controlling interest
(1
)
(1
)
—

—

Cost of removal
2

1

2

1

Other plant-related items
(1
)
—

(1
)
—

Renewable energy credits
(2
)
(1
)
—

—

CARES Act NOL carryback
(1
)
—

—

—

Amortization of excess deferred federal income taxes
(9
)
(3
)
(8
)
(3
)
Other
(1
)
(1
)
—

(1
)
Effective tax rate
12
 %
20
 %
19
 %
23
 %