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Employee benefits (Details 1)	12 Months Ended
	Jun. 30, 2018 ARS ($) $ / shares
Cellcom Israel Ltd. [Member]
Disclosure of associates [line items]
Amount of outstanding options | $	$ 918,665
Average remaining useful life	1 year 7 months 10 days
ILS | Cellcom Israel Ltd. [Member]
Disclosure of associates [line items]
Average price of outstanding options	$ 28.3
ILS | Minimum [Member] | Cellcom Israel Ltd. [Member]
Disclosure of associates [line items]
Exercise price range of outstanding options	25.65
ILS | Maximum [Member] | Cellcom Israel Ltd. [Member]
Disclosure of associates [line items]
Exercise price range of outstanding options	$ 51.48
Discount Investment Corporation Ltd. [Member]
Disclosure of associates [line items]
Amount of outstanding options | $	$ 4,745,090
Average remaining useful life	4 years 9 months
Discount Investment Corporation Ltd. [Member] | ILS
Disclosure of associates [line items]
Average price of outstanding options	$ 6.46
Discount Investment Corporation Ltd. [Member] | ILS | Minimum [Member]
Disclosure of associates [line items]
Exercise price range of outstanding options	2.92
Discount Investment Corporation Ltd. [Member] | ILS | Maximum [Member]
Disclosure of associates [line items]
Exercise price range of outstanding options	$ 8

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