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
	Mar. 31, 2022	Mar. 31, 2021
UNITED STATES | Pension Plan [Member]
Interest cost	$ 4	$ 3
Expected return on plan assets	(7)	(7)
Amortization of net actuarial loss	2	2
Net periodic benefit cost (credit)	(1)	(2)
Foreign Plan [Member] | Pension Plan [Member]
Interest cost	2	1
Expected return on plan assets	(1)
Service cost	2	2
Amortization of net actuarial loss	1	2
Net periodic benefit cost (credit)	4	5
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]
Interest cost	0	1
Amortization of net actuarial loss	(1)
Net periodic benefit cost (credit)	$ (1)	$ 1