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Note 4 - Restructuring of Operations - Accrued Restructuring Costs and Activity (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Balance $ 30 $ 14 $ 29
Charges to restructuring 7 36 31
Adjustments of accruals (7) (2) (2)
Cash payments (18) (19) (40)
Lease cease-use reclassification     (4)
Currency impact (1) 1  
Balance 11 30 14
Employee Termination Benefits [Member]      
Balance 30 13 25
Charges to restructuring 2 30 21
Adjustments of accruals (7) (2) (2)
Cash payments (13) (12) (31)
Currency impact (1) 1  
Balance 11 30 13
Exit Costs [Member]      
Balance 0 1 4
Charges to restructuring 5 6 10
Cash payments (5) (7) (9)
Lease cease-use reclassification     (4)
Balance $ 0 $ 0 $ 1