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Note 14 - Summary of Reconciliation of Basic and Diluted Earnings Per Share (Details) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Earnings Per Share Basic [Line Items]        
NET INCOME $ 20 $ 16 $ 17 $ 22
Net income available to common shareholders - basic 16 13 10 26
Effect of dilutive securities:        
Net income available to common shareholders - diluted $ 17 $ 16 $ 10 $ 30
Basic 78.9 78.5 78.8 78.2
Effect of dilutive securities        
Weighted average shares — diluted 90.2 100.6 80.4 93.9
Employee Stock Option [Member]        
Effect of dilutive securities        
Series B preferred stock 1.2 2.0 1.1 2.2
Unvested Restricted Stock Units [Member]        
Effect of dilutive securities        
Series B preferred stock 0.6 0.6 0.5 0.6
Series C Preferred Stock [Member]        
Earnings Per Share Basic [Line Items]        
Less: preferred stock in-kind and deemed dividends $ (1) $ (2) $ (3) $ (2)
Less: Earnings attributable to preferred shareholders (2)   (2)  
Effect of dilutive securities:        
Add back: preferred stock in-kind and deemed dividends 1 $ 2 3 $ 2
Effect of dilutive securities        
Series B preferred stock   10.0   6.4
Series A Preferred Stock [Member]        
Earnings Per Share Basic [Line Items]        
Less: preferred stock cash and deemed dividends       $ (3)
Plus: Expiration of Series A preferred stock embedded derivative       11
Effect of dilutive securities:        
Add back: preferred stock cash and deemed dividends       3
Series B Preferred Stock [Member]        
Earnings Per Share Basic [Line Items]        
Less: preferred stock cash and deemed dividends (1) $ (1) (2) (2)
Effect of dilutive securities:        
Add back: preferred stock cash and deemed dividends $ 1 $ 1 $ 2 $ 2
Effect of dilutive securities        
Series B preferred stock 9.5 9.5   6.5