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Retirement Plans and Other Retiree Benefits (Tables)
 3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]  
Components Of Net Periodic Benefit Cost

Components of Net periodic benefit cost for the three months ended March 31, 2020 and 2019 were as follows:

 
Three Months Ended March 31,
 
Pension Benefits
 
Other Retiree Benefits
 
United States
 
International
 
 
 
 
 
2020
 
2019
 
2020
 
2019
 
2020
 
2019
Service cost
$
—

 
$
—

 
$
4

 
$
4

 
$
6

 
$
4

Interest cost
19

 
23

 
5

 
5

 
11

 
11

Expected return on plan assets
(27
)
 
(26
)
 
(4
)
 
(5
)
 
—

 
(1
)
Amortization of actuarial loss (gain)
11

 
13

 
1

 
2

 
5

 
2

Net periodic benefit cost
$
3

 
$
10

 
$
6

 
$
6

 
$
22

 
$
16