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Other Postretirement Benefits
 3 Months Ended
Mar. 31, 2017
Compensation and Retirement Disclosure [Abstract]  
Other Postretirement Benefits
Other Postretirement Benefits
Total Periodic Benefit Cost
The components of the Companies’ total periodic other postretirement benefit costs for the three months ended March 31, 2017 and 2016 were as follows:
 
 
For the Three Months Ended March 31,
  
          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
1
1
(1)
1
Recognition of prior service cost
(4)
(5)
(3)
(4)
TOTAL PERIODIC OTHER POSTRETIREMENT BENEFIT COST
$(4)
$(7)
$(6)
$(7)
Cost capitalized
2
2
2
2
Reconciliation to rate level
(1)
7
—

7
Cost charged to operating expenses
$(3)
$2
$(4)
$2



Expected Contributions
Based on estimates as of March 31, 2017, Con Edison expects to make a contribution of $16 million, of which $8 million is to be contributed by CECONY, to the other postretirement benefit plans in 2017. The Companies' policy is to fund the total periodic benefit cost of the plans to the extent tax deductible.