Note 9 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Operating Lease, Cost	$ 17	$ 12
Short-Term Lease, Cost	17	12
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 16	$ 21
Operating Lease, Weighted Average Remaining Lease Term (Year)	9 years 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	6.60%
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	1 year
Lessee, Lease, Renewal Term (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	99 years
Lessee, Lease, Renewal Term (Year)	20 years