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Property, Plant, and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Components of property, plant and equipment
Property, plant, and equipment consists of:
 
    
December 31,
        
    
2021
    
2020
    
Estimated Useful Life
 
Buildings and land
   $ 1,222      $ 1,109       
30 years - Buildings
 
Enterprise hardware and software
     1,858        1,862        3 years  
Leaseholds
     1,796        1,826       

Lesser of lease term
or estimated useful
life
 
 
 
Equipment
     1,094        1,063        7 years  
Furniture
     203        204        5 years  
    
 
 
    
 
 
          
Property, plant, and equipment, gross
     6,173        6,064           
Accumulated depreciation
     (4,825      (4,713         
    
 
 
    
 
 
          
Property, plant, and equipment, net
   $ 1,348      $ 1,351