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Financial risk management and fair value estimates (Details Textual) | 12 Months Ended |  |
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Jun. 30, 2019 ARS ($) | Jun. 30, 2018 ARS ($) | Jun. 30, 2017 ARS ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2019 ARS ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2018 ARS ($)
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | $ (29,017,000,000) | $ (3,420,000,000) | $ (4,296,000,000) |  |  |  |
(Loss) / Profit for the year | (26,847,000,000) | 23,237,000,000 | $ 3,048,000,000 |  |  |  |
Interest Rate Risk [Member] | ARGENTINA | Floating Interest Rate [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Percentage change in interest rates |  |  |  | 1.00% | 1.00% |  |
Currency Risk [Member] | Fixed Interest Rate [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Percentage of long term borrowing |  |  |  | 0.941 | 0.941 | 0.955 | 0.955
Other Price Risk [Member] | Derivatives [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Financial investment |  |  |  |  | $ 5,586,000,000 |  | $ 946,000,000
Operations Center in Argentina [Member] | Currency Risk [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | 1,497,000,000 | 2,132,000,000 |  |  |  |  |
Percentage increase in foreign currency |  |  |  | 10.00% | 10.00% |  |
Operations Center in Argentina [Member] | Currency Risk [Member] | Derivatives [Member] | Forward Contract [member] | USD [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Future exchanges contract pending |  |  |  | $ 13,000,000 |  | $ 47,300,000 |
Operations Center in Argentina [Member] | Interest Rate Risk [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | 21,800,000 | 36,600,000 |  |  |  |  |
Operations Center in Argentina [Member] | Interest Rate Risk [Member] | Derivatives [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Percentage change in interest rates |  |  |  | (10.00%) | (10.00%) |  |
Financial investment |  |  |  |  | $ 97,000,000 |  | $ 105,000,000
Operations Center in Argentina [Member] | Credit Risk [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Percentage of trade receivable by group |  |  |  | 99.10% | 99.10% | 91.70% | 91.70%
Operations Center in Argentina [Member] | Other Price Risk [Member] | 10% Decrease In Quoted Proces Of Equity Securities And In Derivative Financial Instruments Portfolio [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | 558,000,000 | 75,000,000 |  |  |  |  |
Operations Center in Israel [Member] | Currency Risk [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | 832,000,000 | (1,117,000,000) |  |  |  |  |
Percentage increase in foreign currency |  |  |  | 10.00% | 10.00% |  |
Operations Center in Israel [Member] | Currency Risk [Member] | Derivatives [Member] | Forward Contract [member] | USD [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Future exchanges contract pending |  |  |  |  | $ (8,323,000,000) |  | $ (11,170,000,000)
Operations Center in Israel [Member] | Currency Risk [Member] | Fixed Interest Rate [Member] | IDB Development Corporation Ltd [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Percentage of long term borrowing |  |  |  | 0.971 | 0.971 | 0.961 | 0.961
Operations Center in Israel [Member] | 1% Increase Consumer Price Index [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
(Loss) / Profit for the year | 1,051,000,000 | 1,746,000,000 |  |  |  |  |
Operations Center in Israel [Member] | 1% Decrease Consumer Price Index [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
(Loss) / Profit for the year | 1,063,000,000 | 1,078,000,000 |  |  |  |  |
Operations Center in Israel [Member] | Other Price Risk [Member] | 10% Decrease In Quoted Proces Of Equity Securities And In Derivative Financial Instruments Portfolio [Member] |  |  |  |  |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |  |  |  |  |
Net additional loss before income tax | $ 1,785,000,000 | $ 2,965,000,000 |  |  |  |  |

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