Capitalization (Tables)

9 Months Ended

Sep. 30, 2017

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, 2017 and December 31, 2016 were:

(Millions of Dollars)	2017		2016
Long-Term Debt (including current portion) (a)	Carrying Amount	Fair Value	Carrying Amount	Fair Value
Con Edison	$15,338	$17,195	$14,774	$16,093
CECONY	$12,571	$14,213	$12,073	$13,268

(a) Amounts shown are net of unamortized debt expense and unamortized debt discount of $137 million and $115 million for Con Edison and CECONY, respectively, as of September 30, 2017 and $134 million and $113 million for Con Edison and CECONY, respectively, as of December 31, 2016.