Material Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Summary of Total Guarantees

A summary, by type and term, of Con Edison’s total guarantees under these other agreements at December 31, 2020 is as follows:

Guarantee Type	0 – 3 years	4 – 10 years	> 10 years	Total
	(Millions of Dollars)
Con Edison Transmission	$393	$177	$—	$570
Energy transactions	480	51	222	753
Renewable electric production projects	285	9	355	649
Other	70	—	—	70
Total	$1,228	$237	$577	$2,042