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Note 7 - Leases (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Operating Lease, Lease Income [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

September 30,

  

September 30,

 

(in millions)

 

2022

  

2021

  

2022

  

2021

 

Lease income - operating leases:

                

Lease income

 $2  $2  $7  $6 

Variable lease income

  2   1   4   3 

Total lease income

 $4  $3  $11  $9