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17 Other receivables (Details) - ARS ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Summary of other receivables [line items] |  |
Non-current other receivables | $ 42 | $ 35
Current other receivables | 624 | 394
Credit for real estate asset [member] |  |
Summary of other receivables [line items] |  |
Non-current other receivables | 2,151 | 2,894
Current other receivables | 36 | 82
Judicial deposits [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 77 | 93
Security deposits [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 38 | 34
Prepaid expenses [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 43 | 21
Advances to personnel [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 2 |
Financial credit [member] |  |
Summary of other receivables [line items] |  |
Non-current other receivables | 14 | 30
Current other receivables | 18 | 61
Advances to suppliers [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 73 |
Tax credits [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 326 | 20
Related parties [member] |  |
Summary of other receivables [line items] |  |
Non-current other receivables | 3 | 5
Current other receivables | 19 | 35
Subtotal [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 632 | 346
Debtors for complementary activities [member] |  |
Summary of other receivables [line items] |  |
Current other receivables | 69 | 137
Allowance for the impairment of other receivables [member] |  |
Summary of other receivables [line items] |  |
Non-current other receivables | (2,126) | (2,894)
Current other receivables | $ (77) | $ (89)

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