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Note 12 - Income Taxes (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2022
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2020
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       21.00%    
Effective Income Tax Rate Reconciliation, Percent, Total 28.00% 28.00%   27.00% 28.00%  
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent       5.00%    
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total       1.00% 2.00%  
Income Taxes Paid, Net, Total       $ 119    
Proceeds from Income Tax Refunds           $ 21
State and Local Jurisdiction [Member]            
Operating Loss Carryforwards $ 337     $ 337    
Forecast [Member]            
Proceeds from Income Tax Refunds     $ 21      
Forecast [Member] | Minimum [Member]            
Income Taxes Paid, Net, Total     70      
Forecast [Member] | Maximum [Member]            
Income Taxes Paid, Net, Total     $ 90