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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)
3 Months Ended
Mar. 31, 2019
Components of Net Periodic Benefit Costs
The components of net periodic benefit cost are:
 
PENSION
 
QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS
MARCH 2019
 
MARCH 2018
Service cost
$
8

 
$
10

Interest cost
43

 
60

Expected return on plan assets
(62
)
 
(100
)
Amortization of actuarial loss
30

 
61

Amortization of prior service cost
1

 
1

Settlement charge
455

 

Total net periodic benefit cost - pension
$
475

 
$
32


 
OTHER POSTRETIREMENT BENEFITS
 
QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS
MARCH 2019
 
MARCH 2018
Interest cost
$
2

 
$
2

Amortization of actuarial loss
2

 
2

Amortization of prior service credit
(1
)
 
(2
)
Total net periodic benefit cost - other postretirement benefits
$
3

 
$
2