Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Other Postretirement Benefits

Defined Benefit Plan Disclosure [Line Items]

Total Periodic Benefit Costs

The components of the Companies’ total periodic other postretirement benefit costs for the three months ended March 31, 2016 and 2015 were as follows:

	For the Three Months Ended March 31,
	Con Edison		CECONY
(Millions of Dollars)	2016	2015	2016	2015
Service cost	$4	$5	$3	$4
Interest cost on accumulated other postretirement benefit obligation	12	13	10	11
Expected return on plan assets	(19)	(20)	(17)	(17)
Recognition of net actuarial loss	1	8	1	7
Recognition of prior service cost	(5)	(5)	(4)	(4)
TOTAL PERIODIC OTHER POSTRETIREMENT BENEFIT COST	$(7)	$1	$(7)	$1
Cost capitalized	2	(1)	2	(1)
Reconciliation to rate level	7	4	7	2
Cost charged to operating expenses	$2	$4	$2	$2