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INCOME TAX AND DEFERRED TAX, Component of Net Deferred Tax Assets and Liabilities (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | $ (3,420,564) |
Deferred tax assets (liability), end of year | (4,762,514) | $ (3,420,564)
Deferred Tax Assets [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 1,275,462 | 1,125,951
Charge in results | (5,608) | 149,511
Deferred tax assets (liability), end of year | 1,269,854 | 1,275,462
Deferred Tax Assets [Member] | Allowance for Doubtful Accounts [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 0
Charge in results | 731 | 0
Deferred tax assets (liability), end of year | 731 | 0
Deferred Tax Assets [Member] | Tax Credits Discounted Value Loss [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 596 | 0
Charge in results | (240) | 596
Deferred tax assets (liability), end of year | 356 | 596
Deferred Tax Assets [Member] | Account Receivables Discounted Value [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 3,497 | 0
Charge in results | (2,766) | 3,497
Deferred tax assets (liability), end of year | 731 | 3,497
Deferred Tax Assets [Member] | Provisions for Legal Claims and Other Provisions [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 155,226 | 173,575
Charge in results | (375) | (18,349)
Deferred tax assets (liability), end of year | 154,851 | 155,226
Deferred Tax Assets [Member] | Financial Lease [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 626,981 | 516,052
Charge in results | (26,711) | 110,929
Deferred tax assets (liability), end of year | 600,270 | 626,981
Deferred Tax Assets [Member] | Contract liabilities [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 489,162 | 436,324
Charge in results | 14,925 | 52,838
Deferred tax assets (liability), end of year | 504,087 | 489,162
Deferred Tax Assets [Member] | Tax Inflation Adjustment [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 0
Charge in results | 8,828 | 0
Deferred tax assets (liability), end of year | 8,828 | 0
Deferred Tax Liabilities [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (4,696,026) | (11,058,527)
Charge in results | (1,336,342) | 6,362,501
Deferred tax assets (liability), end of year | (6,032,368) | (4,696,026)
Deferred Tax Liabilities [Member] | Tax Inflation Adjustment [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 0
Charge in results | (1,632,889) | 0
Deferred tax assets (liability), end of year | (1,632,889) | 0
Deferred Tax Liabilities [Member] | Deferred Sales [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 4,367 | 0
Charge in results | (4,367) | 4,367
Deferred tax assets (liability), end of year | 0 | 4,367
Deferred Tax Liabilities [Member] | Loans [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (47,813) | (5,633)
Charge in results | 21,547 | (42,180)
Deferred tax assets (liability), end of year | (26,266) | (47,813)
Deferred Tax Liabilities [Member] | Property, Plant and Equipment [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (4,488,783) | (11,016,028)
Charge in results | 139,697 | 6,527,245
Deferred tax assets (liability), end of year | (4,349,086) | (4,488,783)
Deferred Tax Liabilities [Member] | Cash and Cash Equivalents [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (146,008) | (25,325)
Charge in results | 143,880 | (120,683)
Deferred tax assets (liability), end of year | (2,128) | (146,008)
Deferred Tax Liabilities [Member] | Inventories [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (17,789) | (11,541)
Charge in results | (2,346) | (6,248)
Deferred tax assets (liability), end of year | (20,135) | (17,789)
Deferred Tax Liabilities [Member] | Other Financial Assets at Amortized Cost [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 0
Charge in results | (1,864) | 0
Deferred tax assets (liability), end of year | $ (1,864) | $ 0

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