Capitalization (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Carrying Amounts and Fair Values of Long-Term Debt

The carrying amounts and fair values of long-term debt at March 31, 2017 and December 31, 2016 were:

(Millions of Dollars)	2017		2016
Long-Term Debt (including current portion)	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Con Edison	$14,862	$16,206	$14,774	$16,093
CECONY	$12,075	$13,288	$12,073	$13,268