Other Material Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Summary of Total Guarantees

A summary, by type and term, of Con Edison’s total guarantees at December 31, 2016 is as follows:

Guarantee Type	0 – 3 years	4 – 10 years	> 10 years		Total
	(Millions of Dollars)
Con Edison Transmission	$435	$613		$—	$1,048
Energy transactions	603	35	98		736
Renewable electric production projects	439	—	19		458
Other	128	—	—		128
Total	$1,605	$648	$117		$2,370