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, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Pension Plan [Member] | UNITED STATES
Interest cost	$ 4	$ 4	$ 8	$ 7
Expected return on plan assets	(7)	(6)	(14)	(13)
Amortization of net actuarial loss	2	2	4	4
Net periodic benefit cost (credit)	(1)	0	(2)	(2)
Pension Plan [Member] | Foreign Plan [Member]
Interest cost	1	1	3	2
Expected return on plan assets		(1)	(1)	(1)
Service cost	2	2	4	4
Amortization of net actuarial loss	2	3	3	5
Net periodic benefit cost (credit)	5	5	9	10
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member]
Interest cost	1	0	1	1
Amortization of net actuarial loss			(1)
Net periodic benefit cost (credit)	$ 1	$ 0	$ 0	$ 1