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COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS
3 Months Ended
Mar. 31, 2018
Retirement Benefits [Abstract]  
COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS
COMPONENTS OF PENSION AND OTHER POST-EMPLOYMENT BENEFIT (OPEB) PLANS NET PERIODIC BENEFIT COSTS:

Components of Net Periodic Benefit (Credit) Cost are as follows:
 
Pension Benefits
 
Other Post-Employment Benefits
 
Three Months Ended
March 31,
 
Three Months Ended
March 31,
 
2018
 
2017
 
2018
 
2017
Service Cost
$
288

 
$
737

 
$

 
$

Interest Cost
5,876

 
6,316

 
4,677

 
5,986

Expected Return on Plan Assets
(10,092
)
 
(10,596
)
 

 

Amortization of Prior Service Credits
(126
)
 
(126
)
 
(601
)
 
(601
)
Amortization of Actuarial Loss
2,179

 
2,224

 
4,051

 
5,778

Net Periodic Benefit (Credit) Cost
$
(1,875
)
 
$
(1,445
)
 
$
8,127

 
$
11,163



Expenses related to pension and other post-employment benefits are reflected in Operating and Other Costs in the Consolidated Statements of Operations.