Note 8 - Stock Compensation - Granted Awards Activity (Details) shares in Millions	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Granted (in shares) | shares	1.1
Grant Date Fair Value (in dollars per share) | $ / shares	$ 18.56	[1]
Performance Share Units [Member]
Granted (in shares) | shares	0.6
Grant Date Fair Value (in dollars per share) | $ / shares	$ 19.57	[1]

[1] Weighted-average per share