Capitalization (Tables)

6 Months Ended

Jun. 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 June 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	$15,340	$17,052	$14,774	$16,093
CECONY	$12,570	$14,104	$12,073	$13,268

(a) Amounts shown are net of unamortized debt expense and unamortized debt discount of $139 million and $116 million for Con Edison and CECONY, respectively, as of June 30, 2017 and $134 million and $113 million for Con Edison and CECONY, respectively, as of December 31, 2016.