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Pension Plans, Postretirement and Other Employee Benefits (Tables)
 3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]  
Components of Net Periodic Benefit Cost
Components of net periodic benefit cost (credit) for the three months ended March 31, 2020 and 2019 are as follows:
 
Three Months Ended March 31,
 
Pension
 
Other Postretirement Benefits
 
2020
 
2019
 
 
U.S.
 
Non-U.S.
 
U.S.
 
Non-U.S.
 
2020
 
2019
Service cost
$
—

 
$
6

 
$
1

 
$
6

 
$
—

 
$
—

Interest cost
10

 
4

 
13

 
7

 
2

 
3

Expected return on plan assets
(16
)
 
(4
)
 
(17
)
 
(5
)
 
—

 
—

Net amortization:
 
 
 
 
 
 
 
 
 
 
 
Actuarial loss
2

 
2

 
1

 
1

 
1

 
1

Prior service cost (credit)
—

 
—

 
—

 
—

 
(2
)
 
(2
)
Net pension and postretirement costs (credits)
$
(4
)
 
$
8

 
$
(2
)
 
$
9

 
$
1

 
$
2