v3.26.1
Note 9 - Pension and Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Credit) and Other Amounts Recognized in OCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Other Postretirement Benefits Plan [Member]        
Interest cost $ 1 $ 0 $ 1 $ 1
Amortization of net actuarial loss (gain)   (1) (1) (2)
Net periodic benefit cost (credit) 1 (1) 0 (1)
UNITED STATES | Pension Plan [Member]        
Interest cost 4 5 8 10
Expected return on plan assets (6) (5) (11) (11)
Amortization of net actuarial loss (gain) 1 1 2 2
Net periodic benefit cost (credit) (1) 1 (1) 1
Foreign Plan [Member] | Pension Plan [Member]        
Interest cost 3 3 6 5
Expected return on plan assets   (1) (1) (1)
Service cost 1 1 2 2
Net periodic benefit cost (credit) $ 4 $ 3 $ 7 $ 6