Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2017

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 and six months ended June 30, 2017 and 2016 were as follows:

	For the Three Months Ended June 30,
	Con Edison		CECONY
(Millions of Dollars)	2017	2016	2017	2016
Service cost	$5	$4	$3	$3
Interest cost on accumulated other postretirement benefit obligation	11	12	10	10
Expected return on plan assets	(17)	(19)	(15)	(17)
Recognition of net actuarial loss/(gain)	1	1	(1)	1
Recognition of prior service cost	(4)	(5)	(3)	(3)
TOTAL PERIODIC OTHER POSTRETIREMENT BENEFIT COST	$(4)	$(7)	$(6)	$(6)
Cost capitalized	2	2	3	2
Reconciliation to rate level	(1)	7	(1)	6
Cost charged to operating expenses	$(3)	$2	$(4)	$2

	For the Six Months Ended June 30,
	Con Edison		CECONY
(Millions of Dollars)	2017	2016	2017	2016
Service cost	$10	$9	$7	$7
Interest cost on accumulated other postretirement benefit obligation	23	24	19	20
Expected return on plan assets	(35)	(38)	(30)	(34)
Recognition of net actuarial loss/(gain)	1	2	(2)	1
Recognition of prior service cost	(8)	(10)	(6)	(7)
TOTAL PERIODIC OTHER POSTRETIREMENT BENEFIT COST	$(9)	$(13)	$(12)	$(13)
Cost capitalized	4	3	5	3
Reconciliation to rate level	(2)	14	(1)	14
Cost charged to operating expenses	$(7)	$4	$(8)	$4