Quarterly report [Sections 13 or 15(d)]

Note 13 - Employee Benefit Plans - Components of Net Benefit Costs (Details)

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Note 13 - Employee Benefit Plans - Components of Net Benefit Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Amortization of actuarial loss $ 8 $ 9 $ 22 $ 25
Defined Benefit Plans [Member]        
Service cost 6 7 19 20
Interest cost [1] 22 23 67 67
Expected return on assets (33) (32) (97) (96)
Amortization of prior service benefit (1) (2) (4) (4)
Amortization of actuarial loss [1] 8 9 22 25
Net periodic benefit cost 2 5 6 14
Special termination benefits     0 2
Settlement gain     (1) 0
Other Postretirement Benefits Plan [Member]        
Service cost 0 0 0 0
Interest cost [1] 1 1 2 2
Expected return on assets 0 0 0 0
Amortization of prior service benefit (1) (1) (2) (2)
Amortization of actuarial loss [1] 0 0 0 0
Net periodic benefit cost $ 0 $ 0 0 0
Special termination benefits     0 0
Settlement gain     $ 0 $ 0
[1] Amounts are presented in other income, net.