v3.26.1
RETIREMENT-RELATED BENEFITS (Tables)
3 Months Ended
Jun. 30, 2026
RETIREMENT-RELATED BENEFITS  
Components of net periodic pension cost for the defined benefit pension plans

Three Months Ended June 30,

(Dollars in millions)

  ​ ​ ​

2026

  ​ ​ ​

2025

Service cost

 

$

8

 

$

8

Interest cost*

 

16

 

14

Expected return on plan assets*

 

(16)

 

(16)

Amortization of prior service costs (credits)*

 

2

 

Recognized actuarial losses (gains)*

1

3

Net periodic pension cost

 

$

10

 

$

9

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