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Note 3 - Restructuring of Operations - Accrued Restructuring Costs and Activity (Details)
$ in Millions
3 Months Ended
Mar. 31, 2023
USD ($)
Balance $ 2
Charges to restructuring 1
Cash payments (1)
Balance 2
Employee Termination Benefits [Member]  
Balance 2
Charges to restructuring
Cash payments
Balance 2
Exit Costs [Member]  
Balance 0
Charges to restructuring 1
Cash payments (1)
Balance $ 0