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		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
UNITED STATES | Pension Plan [Member]
Interest cost	$ 7	$ 4	$ 21	$ 12
Expected return on plan assets	(8)	(7)	(23)	(21)
Amortization of net actuarial (gain) loss	1	2	5	6
Net periodic benefit cost (credit)		(1)	3	(3)
Foreign Plan [Member] | Pension Plan [Member]
Interest cost	4	2	10	5
Expected return on plan assets		(1)	(2)	(2)
Service cost	1	2	4	6
Amortization of net actuarial (gain) loss		1		4
Net periodic benefit cost (credit)	5	4	12	13
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Interest cost	1		2	1
Amortization of net actuarial (gain) loss	$ (1)	(1)	(3)	(2)
Net periodic benefit cost (credit)		$ (1)	$ (1)	$ (1)