Capitalization (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-Term Debt Maturities

Long-term debt maturing in the period 2017-2021 is as follows:

(Millions of Dollars)	Con Edison	CECONY
2017	$39		$—
2018	1,688	1,200
2019	574	475
2020	388	350
2021	540	—

Carrying Amounts and Fair Values of Long-Term Debt

The carrying amounts and fair values of long-term debt at December 31, 2016 and 2015 are:

(Millions of Dollars)	2016		2015
Long-Term Debt (including current portion)	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Con Edison	$14,774	$16,093	$12,745	$13,856
CECONY	$12,073	$13,268	$11,437	$12,427