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Financial risk management and fair value estimates (Details 1) - Uruguayan Peso [Member] - Urban Properties And Investments Business [Member] - Operation Center in Argentina [Member] - ARS ($)
$ in Millions
Jun. 30, 2020
Jun. 30, 2019
Israeli New Shekel [member]    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset
Argentine Peso [Member] | Israeli New Shekel [member]    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset
UYU | Israeli New Shekel [member]    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset
USD    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset (38,245) (21,408)
USD | Argentine Peso [Member]    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset (38,397) (21,134)
USD | UYU    
Disclosure of risk management strategy related to hedge accounting [line items]    
Net monetary position (Liability) / Asset $ 152 $ (274)