XML 39 R29.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Note 5 - Retirement Plans (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]

Millions, for the Three Months Ended March 31,

 

2024

   

2023

 

Service cost

  $ 13     $ 13  

Interest cost

    46       46  

Expected return on plan assets

    (63 )     (62 )

Amortization of actuarial loss

    2       2  

Net periodic pension (benefit)/cost

  $ (2 )   $ (1 )