v3.26.1
Note 12 - Employee Benefit Plans
3 Months Ended
Mar. 31, 2026
Notes to Financial Statements  
Retirement Benefits [Text Block]

12. EMPLOYEE BENEFIT PLANS 

Components of the net periodic benefit cost for the three months ended March 31, 2026 and 2025 were as follows (dollars in millions):

 

                   

Other postretirement

 
   

Defined benefit plans

   

benefit plans

 
   

Three months ended

   

Three months ended

 
   

March 31,

   

March 31,

 
   

2026

   

2025

   

2026

   

2025

 

Service cost

  $ 6     $ 6     $     $  

Interest cost

    23       22       1       1  

Expected return on assets

    (33 )     (31 )            

Amortization of prior service benefit

    (1 )     (1 )     (1 )     (1 )

Amortization of actuarial loss

    7       7              

Settlement gain

          (1 )            

Net periodic benefit cost

  $ 2     $ 2     $     $  

​  

During the three months ended March 31, 2026 and 2025, we made contributions to our pension and other postretirement benefit plans of $9 million and $8 million, respectively. During the remainder of 2026, we expect to make additional contributions of approximately $33 million to these plans.​