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RETIREMENT-RELATED BENEFITS (Tables)
6 Months Ended
Sep. 30, 2023
RETIREMENT-RELATED BENEFITS  
Components of net periodic pension cost for the defined benefit pension plans

Three Months Ended September 30,

Six Months Ended September 30,

(Dollars in millions)

    

2023

    

2022

    

2023

    

2022

Service cost

 

$

9

 

$

12

 

$

19

 

$

24

Interest cost*

 

15

 

9

 

29

 

18

Expected return on plan assets*

 

(16)

 

(10)

 

(30)

 

(21)

Amortization of prior service costs (credits)*

 

 

 

1

 

Recognized actuarial losses (gains)*

1

10

3

20

Net periodic pension cost

 

$

9

 

$

21

 

$

21

 

$

41

* These components of net periodic pension cost are included in other expense (income) in the Consolidated Income Statement.