v3.26.1
RETIREMENT-RELATED BENEFITS
3 Months Ended
Jun. 30, 2026
RETIREMENT-RELATED BENEFITS  
RETIREMENT-RELATED BENEFITS

NOTE 13. RETIREMENT-RELATED BENEFITS

The following table presents the components of net periodic pension cost for the defined benefit pension plans recognized in the Consolidated Income Statement for the three months ended June 30, 2026 and 2025.

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.

The components of net periodic benefit cost for the nonpension postretirement benefit plans and multi-employer plans recognized in the Consolidated Income Statement were not material for any period presented.