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PROVISIONS - Probable contingent Liabilities (Details)
 1 Months Ended
Oct. 30, 2013
Jun. 03, 2013
item
Dec. 31, 2013
item
Dec. 31, 2018
ARS ($)
Labor contingencies        
Provisions        
Number of chambers of the Civil and Commercial Federal Proceedings Court who issued opinions interpreting the doctrine developed by the Argentine Supreme Court of Justice - Dominguez c/ Telefonica de Argentina S.A. | item     2  
Number of unions who filed lawsuit claiming the issuance of a profit sharing bonds | item   4    
Statute of limitation, period established 10 years      
Provision for regulatory, tax and other matters claims        
Provisions        
Estimated increase in provision       $ 62,000,000
Task solutions | Regulatory contingencies        
Provisions        
Claims for damages and losses       408,721,835
Maximum | Labor contingencies        
Provisions        
Statute of limitation, period established, Argentine Supreme Court of Justice     5 years  
Statute of limitation, period established, Chamber III     10 years  
Maximum | Regulatory contingencies        
Provisions        
Estimated liabilities per each alleged violation against its clients       $ 9,380