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PROPERTY, PLANT AND EQUIPMENT - Property, plant and equipment, Net (Details) - ARS ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property, plant and equipment      
Property, plant and equipment $ 451,174 $ 484,316  
Net carring value      
Property, plant and equipment      
Property, plant and equipment 457,518 489,472  
PP&ES | Gross value      
Property, plant and equipment      
Property, plant and equipment 813,668 785,408 $ 735,624
PP&ES | Allowance for obsolescence of inventories      
Property, plant and equipment      
Property, plant and equipment (1,620) (1,226) (1,648)
PP&ES | Net carring value      
Property, plant and equipment      
Property, plant and equipment 457,518 489,472  
Other | Gross value      
Property, plant and equipment      
Property, plant and equipment 4,435 3,088 2,503
Other | Net carring value      
Property, plant and equipment      
Property, plant and equipment 2,294 1,402  
Materials | Gross value      
Property, plant and equipment      
Property, plant and equipment 45,688 40,591 $ 43,548
Materials | Allowance for obsolescence of inventories      
Property, plant and equipment      
Property, plant and equipment (4,724) (3,930)  
Materials | Net carring value      
Property, plant and equipment      
Property, plant and equipment $ 45,688 $ 40,591