Note 10 - 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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
UNITED STATES | Pension Plan [Member]
Interest cost	$ 6	$ 7	$ 13	$ 14
Expected return on plan assets	(8)	(7)	(15)	(15)
Amortization of net actuarial loss (gain)	1	2	3	4
Net periodic benefit (credit) cost	(1)	2	1	3
Foreign Plan [Member] | Pension Plan [Member]
Interest cost	4	3	7	6
Expected return on plan assets	(1)	(1)	(2)	(2)
Service cost	1	2	3	3
Net periodic benefit (credit) cost	4	4	8	7
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Interest cost	0	0	1	1
Amortization of net actuarial loss (gain)		(1)	(1)	(2)
Net periodic benefit (credit) cost	$ 0	$ (1)	$ 0	$ (1)