Pension Benefits (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Total Periodic Benefit Costs

The components of the Companies’ total periodic benefit cost for the three months ended March 31, 2019 and 2018 were as follows:

	For the Three Months Ended March 31,
	Con Edison		CECONY
(Millions of Dollars)	2019	2018	2019	2018
Service cost – including administrative expenses	$62	$72	$58	$68
Interest cost on projected benefit obligation	150	140	141	131
Expected return on plan assets	(247)	(258)	(234)	(245)
Recognition of net actuarial loss	130	172	123	163
Recognition of prior service cost/(credit)	(4)	(4)	(5)	(5)
TOTAL PERIODIC BENEFIT COST	$91	$122	$83	$112
Cost capitalized	(26)	(31)	(24)	(29)
Reconciliation to rate level	(5)	(23)	(4)	(25)
Total expense recognized	$60	$68	$55	$58

The components of the Companies’ total periodic other postretirement benefit cost/(credit) for the three months ended March 31, 2019 and 2018 were as follows:

	For the Three Months Ended March 31,
	Con Edison		CECONY
(Millions of Dollars)	2019	2018	2019	2018
Service cost	$4	$5	$3	$3
Interest cost on accumulated other postretirement benefit obligation	11	11	9	9
Expected return on plan assets	(16)	(18)	(14)	(16)
Recognition of net actuarial loss/(gain)	(2)	2	(2)	1
Recognition of prior service cost/(credit)	(1)	(2)	—	(1)
TOTAL PERIODIC OTHER POSTRETIREMENT BENEFIT COST/(CREDIT)	$(4)	$(2)	$(4)	$(4)
Cost capitalized	(2)	(2)	(2)	(2)
Reconciliation to rate level	3	2	2	3
Total expense/(credit) recognized	$(3)	$(2)	$(4)	$(3)