SIGNIFICANT ACCOUNTING POLICIES - Use of Estimates (Details) - ARS ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Receivables and payables valued at amortized cost
Capitalization value of the entity	$ 423,523
Transaction cost rate used for cost of disposal	0.04%
Fair value less cost of disposal exceeds book value of the CGU (as percentage)	4.00%
Reduced share price to equalize the Fair Value of the CGU and the Book Value of the CGU	$ 184.22
Share price reduction percent to equalize the Fair Value of the CGU and the Book Value of the CGU	6.32%
Cash flows term of the business plan	5 years
Long-term growth rate	3.50%
Cash Flow discount rate (WACC)	10.89%
Level 1
Receivables and payables valued at amortized cost
Share Price as of December 30,2020 according to BYMA	$ 196.65
Minimum
Receivables and payables valued at amortized cost
Share price control surplus, percent variation	10.00%
Maximum
Receivables and payables valued at amortized cost
Share price control surplus, percent variation	30.00%
ARS
Receivables and payables valued at amortized cost
Cash Flow discount rate (WACC)	29.00%
ARS \| Minimum
Receivables and payables valued at amortized cost
Cash Flow discount rate (WACC)		29.00%
ARS \| Maximum
Receivables and payables valued at amortized cost
Cash Flow discount rate (WACC)		40.00%

The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

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The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The discount rate used in the current measurement of fair value less costs of disposal.

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The weighted average share price. [Refer: Weighted average [member]]

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The amount of capitalization value of the entity.

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The period over which management has projected cash flows based on financial budgets/forecasts approved by management.

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The reduced share price used for equalization of fair value and book value of cash generation unit.

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The percentage of control variance on share price.

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The percentage of reduced share price used for equalization of fair value and book value of cash generation unit.

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The percentage of disposal cost used in orderly transaction.

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