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Investments in associates and joint ventures (Details Narrative) - BHSA [Member] - ARS ($) $ in Millions | 12 Months Ended |
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Jun. 30, 2018 | Jun. 30, 2017
Disclosure of transactions between related parties [line items] |  |
Treasury stock | $ 35.2 |
Use of estimated investment | $ 2,673.0 | $ 4,134.0
Employee compensation plan | 35.1 |
Description of assumptions for future business cash flows | <table cellspacing="0" cellpadding="0" style="font: 10pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0px; margin-bottom: 0px; width: 100%"> <tr style="vertical-align: top"> <td style="width: 21.3pt"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="width: 14.15pt"><font style="font: 10pt Times New Roman, Times, Serif">-</font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">The Group considered 7 years as the horizon for the projection of BHSA cash flows. </font></td></tr> </table> <table cellspacing="0" cellpadding="0" style="font: 10pt Calibri, Helvetica, Sans-Serif; margin-top: 0px; margin-bottom: 0px; width: 100%"> <tr style="vertical-align: top"> <td style="width: 21.3pt"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="width: 14.15pt"><font style="font: 10pt Times New Roman, Times, Serif">-</font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">The “Private BADLAR” interest rate was projected based on internal data and information gathered from external advisors.</font></td></tr> </table> <table cellspacing="0" cellpadding="0" style="font: 10pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0px; margin-bottom: 0px; width: 100%"> <tr style="vertical-align: top"> <td style="width: 21.3pt"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="width: 14.15pt"><font style="font: 10pt Times New Roman, Times, Serif">-</font></td> <td style="text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">The projected exchange rate was estimated in accordance with internal data and external information provided by independent consultants.</font></td></tr> </table> <table cellspacing="0" cellpadding="0" style="font: 10pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0px; margin-bottom: 0px; width: 100%"> <tr style="vertical-align: top"> <td style="width: 21.3pt"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="width: 14.15pt"><font style="font: 10pt Times New Roman, Times, Serif">-</font></td> <td><font style="font: 10pt Times New Roman, Times, Serif">The discount rate used to discount actual dividend flows was 14.01% in 2018 and 12.99% in 2017.</font></td></tr> </table> <table cellspacing="0" cellpadding="0" style="font: 10pt/115% Calibri, Helvetica, Sans-Serif; margin-top: 0px; margin-bottom: 0px; width: 100%"> <tr style="vertical-align: top"> <td style="width: 21.3pt"><font style="font: 10pt Times New Roman, Times, Serif"> </font></td> <td style="width: 14.15pt"><font style="font: 10pt Times New Roman, Times, Serif">-</font></td> <td><font style="font: 10pt Times New Roman, Times, Serif">The sensitivity to a 1% increase in the discount rate would be a reduction in the value in use of Ps. 237 for 2018 and of Ps. 506 for 2017. The sensitivity to a 1% increase in the "Private BADLAR" interest rate it would be an increase in the value in use of Ps. 292 for 2018 and of Ps. 476 for 2017.</font></td></tr> </table> |

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