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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
UNITED STATES | Pension Plan [Member]
Interest cost	$ 7	$ 4	$ 14	$ 8
Expected return on plan assets	(7)	(7)	(15)	(14)
Amortization of net actuarial loss	2	2	4	4
Net periodic benefit cost (credit)	2	(1)	3	(2)
Foreign Plan [Member] | Pension Plan [Member]
Interest cost	3	1	6	3
Expected return on plan assets	(1)		(2)	(1)
Service cost	2	2	3	4
Amortization of net actuarial loss		2		3
Net periodic benefit cost (credit)	4	5	7	9
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Interest cost	0	1	1	1
Amortization of net actuarial loss	(1)		(2)	(1)
Net periodic benefit cost (credit)	$ (1)	$ 1	$ (1)	$ 0