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Note 12 - Commitments and Contingencies (Details Textual) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Jul. 28, 2020
Restricted Cash, Total $ 69    
U S International Development Finance Corporation [Member]      
Line of Credit Facility, Maximum Borrowing Capacity     $ 765
BRAZIL      
Restricted Cash and Investments, Noncurrent, Total 5 $ 5  
Federal And State Value Added Taxes Litigations And Civil Litigation And Disputes With Former Employees [Member] | BRAZIL      
Guarantor Obligations, Maximum Exposure, Undiscounted 2    
Loss Contingency Accrual, Ending Balance 114    
Loss Contingency, Estimate of Possible Loss 6    
Threat of Expropriation of Assets [Member] | BRAZIL      
Restricted Cash and Investments, Noncurrent, Total 6    
Assets, Noncurrent, Total 41    
Bank Guarantees And Letters Of Credit [Member]      
Guarantor Obligations, Maximum Exposure, Undiscounted 1    
Surety Bond [Member]      
Guarantor Obligations, Maximum Exposure, Undiscounted 29    
Amended A B L Credit Agreement [Member]      
Long-Term Line of Credit, Total 58    
L C Facility Agreement [Member]      
Long-Term Line of Credit, Total $ 43