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Postretirement Plans (Tables)
 3 Months Ended
Mar. 31, 2019
Defined Benefit Plan Disclosure [Line Items]  
Net Periodic Benefit Cost The components of net periodic benefit cost/(income) for the three months ended March 31 were as follows:
  
Pension
 
Postretirement
Pension Plans
2019

 
2018

 
2019

 
2018

Service cost

$1

 

$108

 

$19

 

$24

Interest cost
731

 
695

 
49

 
49

Expected return on plan assets
(965
)
 
(1,002
)
 
(2
)
 
(2
)
Amortization of prior service credits
(20
)
 
(14
)
 
(9
)
 
(32
)
Recognized net actuarial loss/(gain)
161

 
282

 
(11
)
 
(3
)
Net periodic benefit cost/(income)

($92
)
 

$69

 

$46

 

$36

 
 
 
 
 
 
 
 
Net periodic benefit cost/(income) included in Earnings from operations

$78

 

$82

 

$22

 

$22

Net periodic benefit cost/(income) included in Other income, net
(93
)
 
(42
)
 
27

 
24

Net periodic benefit cost/(income) included in Earnings before income taxes

($15
)


$40

 

$49

 

$46