XML 73 R27.htm IDEA: XBRL DOCUMENT v3.20.1
Benefit Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit (Income) Cost
Net periodic benefit (income) cost consisted of the following: 
 
For the Three Months Ended March 31,
 
Pension
 
Postretirement
 
2020
 
2019
 
2020
 
2019
 
(in millions)
Service cost
$
19

 
$
17

 
$
4

 
$
4

Interest cost
63

 
77

 
15

 
20

Expected return on plan assets
(126
)
 
(145
)
 
(3
)
 
(4
)
Amortization:
 
 
 
 
 
 
 
Net loss
27

 
42

 
3

 
3

Prior service cost (credit)
1

 
1

 
(7
)
 
(7
)
Curtailment
—

 
7

 
—

 
5

Net periodic benefit (income) cost
$
(16
)
 
$
(1
)
 
$
12

 
$
21