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PROVISIONS - Contingent Asset - "AFA Plus Project" Claim (Details) - AFA Plus Project
$ in Millions
1 Months Ended
Feb. 28, 2015
USD ($)
Dec. 19, 2018
ARS ($)
Provisions    
Compensation proposed by AFA for investment and expenditures incurred $ 12.5  
Waiting period to receive the proposed compensation 1 year  
Claims brought for prejudicial mediation procedure   $ 353