v3.20.1
Post-Employment Benefits (Tables)
 3 Months Ended
Mar. 31, 2020
Postemployment Benefits [Abstract]  
Summary of net periodic benefit costs relating to the company's defined benefit and other post-employment plans
The following table summarizes net periodic benefit cost relating to the company’s defined benefit and other post-employment plans:
 
Defined
benefit plans
 
Other post-
employment plans
 
Three months ended
March 31,
 
Three months ended
March 31,
(in millions)
2020
 
2019
 
2020
 
2019
Service cost
$
92

 
$
67

 
$
12

 
$
6

Interest cost
61

 
64

 
9

 
6

Expected return on plan assets
(135
)
 
(119
)
 
—

 
—

Amortization of actuarial losses and prior service cost (credit)
55

 
26

 
6

 
(1
)
Net periodic benefit cost
$
73

 
$
38

 
$
27

 
$
11