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Note 21 - Other Postretirement Benefits (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 

Net benefit obligation at beginning of period

  $ 52     $ 58  

Interest cost

    1       1  

Actuarial (gain) loss

    (7 )     (5 )

Benefit payments

    (3 )     (2 )

Net benefit obligation at end of period

    43       52  
                 

Underfunded status at end of period

    (43 )     (52 )
Schedule Of Amounts From Other Post Retirement Plan Recognized In Balance Sheet Table [Text Block]
   

As of December 31,

 
   

2022

   

2021

 

Other current liabilities

  $ (3 )   $ (3 )

Pension and other postretirement liabilities

    (40 )     (49 )
    $ (43 )   $ (52 )
Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income Loss Table [Text Block]
   

As of December 31,

 
   

2022

   

2021

 

Net actuarial gain

  $ 11     $ 4  
Schedule Of Other Post Retirement Plan Recognized In Other Comprehensive Income Loss Table [Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

 

Newly established gain

  $ 7     $ 5  

Total gain recognized in Other comprehensive income

  $ 7     $ 5  
Schedule Of Other Post Retirement Plan Net Benefit Costs Table [Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

   

2020

 

Components of net postretirement benefit cost:

                       

Service cost

  $     $     $  

Interest cost

    1       1       1  

Other postretirement benefit cost from continuing operations

  $ 1     $ 1     $ 1  
Schedule Of Assumptions Used To Calculate Other Post Retirement Plan Net Benefit Obligation Table [Text Block]
   

As of December 31,

 
   

2022

   

2021

 

Discount rate

    5.15 %     2.97 %

Salary increase rate

    2.10 %     1.85 %
Schedule Of Assumptions Used To Calculate Other Post Retirement Plan Net Benefit Costs Table [Text Block]
   

Year Ended December 31,

 
   

2022

   

2021

   

2020

 

Effective rate for interest cost

    2.53 %     1.81 %     2.78 %

Salary increase rate

    1.85 %     1.70 %     1.80 %
Other Post Retirement Benefits Schedule of Health Care Cost Trend Rates [Table Text Block]
   

2022

   

2021

 

Healthcare cost trend

    5.64 %     5.34 %

Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)

    3.57 %     3.32 %

Year that the rate reaches the ultimate trend rate

 

2043

   

2041

 
Schedule of Expected Other Postretirement Benefit Payments [Table Text Block]

2023

  $ 3  

2024

    3  

2025

    3  

2026

    3  

2027

    3  
2028 - 2032     12