Capitalization (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Carrying Amounts and Fair Values of Long-Term Debt

The carrying amounts and fair values of long-term debt at September 30, 2018 and December 31, 2017 were:

(Millions of Dollars)	2018		2017
Long-Term Debt (including current portion) (a)	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Con Edison	$16,608	$17,369	$16,029	$18,147
CECONY	$13,662	$14,333	$13,265	$15,163

(a) Amounts shown are net of unamortized debt expense and unamortized debt discount of $149 million and $128 million for Con Edison and CECONY, respectively, as of September 30, 2018 and $142 million and $121 million for Con Edison and CECONY, respectively, as of December 31, 2017.