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Benefit Plans
3 Months Ended
Mar. 31, 2019
Retirement Benefits [Abstract]  
Benefit Plans
8. Benefit Plans
 
The Company and its subsidiaries have several
non-contributory
defined benefit plans and postretirement benefit plans covering eligible employees and retirees.
The following table presents the components of net periodic (benefit) cost for the plans:
 
  
Pension Benefits
  
Other
Postretirement Benefits
 
Three Months Ended March 31
 
2019
  2018  
2019
  2018 
(In millions)
            
     
Service cost
 
$
2
  $2         
Interest cost
  
29
   27  
$
1
  $1 
Expected return on plan assets
  
(40
  (45  
(1)
   (1
Amortization of unrecognized net loss
  
11
   11         
Amortization of unrecognized prior service benefit
              (1
Settlement charge
      4         
Net periodic (benefit) cost
 
$
2
  $(1 
$
-
  $(1