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Pension Plans, Postretirement and Other Employee Benefits
 3 Months Ended
Mar. 31, 2019
Retirement Benefits [Abstract]  
Pension Plans, Postretirement and Other Employee Benefits
11. Pension Plans, Postretirement and Other Employee Benefits

The Company sponsors several defined benefit pension plans ("Pension Benefits") and health care and life insurance benefits ("Other Postretirement Benefits", or "OPEB") for certain employees and retirees around the world.

Components of net periodic benefit cost (credit) for the three months ended March 31, 2019 and 2018 are as follows:
 
Three Months Ended March 31,
 
Pension
 
Other Postretirement Benefits
 
2019
 
2018
 
 
U.S.
 
Non-U.S.
 
U.S.
 
Non-U.S.
 
2019
 
2018
Service cost
$
1

 
$
6

 
$
—

 
$
3

 
$
—

 
$
—

Interest cost
13

 
7

 
3

 
3

 
3

 
2

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

 
—

Net amortization:
 
 
 
 
 
 
 
 
 
 
 
Actuarial loss
1

 
1

 
1

 
2

 
1

 
1

Prior service cost (credit)
—

 
—

 
—

 
—

 
(2
)
 
—

Net pension and postretirement costs (credits)
$
(2
)
 
$
9

 
$
—

 
$
3

 
$
2

 
$
3



Long-term Rate of Return
The weighted-average long-term rate of return on assets for the U.S. pension plans in determining 2019 annual net periodic pension costs (credits) is 6.25%.