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Employee Benefits (Tables)
 6 Months Ended
Jun. 30, 2020
Retirement Benefits [Abstract]  
Net Pension Cost (Benefit) for All Funded and Unfunded Plans
The components of net pension cost (benefit) for all funded and unfunded plans are recorded in “other expense” and are summarized in the following table. For more information on our Pension Plans and Other Postretirement Benefit Plans, see Note 18 (“Employee Benefits”) beginning on page 155 of our 2019 Form 10-K.
 
Three months ended June 30,
 
Six months ended June 30,
in millions
2020

2019

 
2020

2019

Interest cost on PBO
$
8

$
12

 
$
17

$
23

Expected return on plan assets
(9
)
(12
)
 
(19
)
(24
)
Amortization of losses
4

3

 
8

7

Settlement loss
4

—

 
8

—

Net pension cost
$
7

$
3

 
$
14

$
6