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Inventories (Tables)
 12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Inventories
Inventories consist of:
 
    
2022
      2021  
Raw materials and supplies
   
$
1,640
 
    $ 1,598  
Work-in-process
   
 
427
 
      400  
Finished goods
   
 
537
 
      506  
Tooling and engineering
   
 
1,576
 
      1,465  
    
 
 
     
 
 
  
    
$
4,180
 
    $ 3,969  
    
 
 
     
 
 
  
Tooling and engineering inventory represents costs incurred on tooling and engineering services contracts in excess of billed and unbilled amounts included in accounts receivable.