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Pension and Other Postretirement Benefits (Tables)
 6 Months Ended
Jun. 30, 2019
Retirement Benefits [Abstract]  
Pension and Other Postretirement Benefits
The components of net periodic cost for the Company’s pension and postretirement benefit plans were as follows:
 
Pension Benefits
 
Postretirement Benefits
Three Months Ended June 30,
2019
 
2018
 
2019
 
2018
Components of net periodic cost:
 
 
 
 
 
 
 
Service cost
$
7

 
$
8

 
$
—

 
$
—

Interest cost
39

 
37

 
3

 
4

Expected return on plan assets
(38
)
 
(45
)
 
—

 
—

Amortization of actuarial loss (gain) (a)
23

 
24

 
(4
)
 
(4
)
Net periodic cost
$
31

 
$
24

 
$
(1
)
 
$
—


 
Pension Benefits
 
Postretirement Benefits
Six Months Ended June 30,
2019

2018

2019

2018
Components of net periodic cost:
 
 
 
 
 
 
 
Service cost
$
14

 
$
16

 
$
—

 
$
—

Interest cost
78

 
74

 
7

 
8

Expected return on plan assets
(76
)
 
(90
)
 
—

 
—

Amortization of actuarial loss (gain) (a)
46

 
48

 
(9
)
 
(9
)
Net periodic cost
$
62

 
$
48

 
$
(2
)
 
$
(1
)
(a) Reflects amounts reclassified from accumulated other comprehensive income (loss) to net earnings.