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LOANS, Activity of Loans (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Activity of Loans [Abstract] |  |  |  |  |
Beginning balance | [1] | $ 45,719,826 |  |  |
Proceeds from loans |  | 0 |  | $ 1,431,939 | $ 28,946,182
Acquisition of notes result |  | (399,356) |  | 0 | 0
Payment of redemption of loans |  | (999,811) |  | 0 | 0
Ending balance | [1] | 43,869,424 | [2] | 45,719,826 |
Amount cancelled through offsetting of principal payments maintained with creditor |  | 190,969 |  | 203,173 |
Amount cancelled through offsetting of interest paid maintained with creditor |  | 280,934 |  | 195,168 |
Leases Liabilities [Member] |  |  |  |  |
Activity of Loans [Abstract] |  |  |  |  |
Beginning balance |  | 3,236,657 |  | 3,466,896 |
Inflation adjustment restatement |  | (1,275,154) |  | (1,676,718) |
Accrued interest |  | 242,337 |  | 265,398 |
Effect of foreign exchange rate change |  | 1,149,736 |  | 1,604,703 |
VAT unpaid installments |  | 11,009 |  | 21,766 |
Proceeds from loans |  | 0 |  | 0 |
Acquisition of notes result |  | 0 |  | 0 |
Payment of loans | [3] | (190,969) |  | (228,701) |
Payment of redemption of loans |  | 0 |  | 0 |
Interest paid | [4] | (280,934) |  | (216,687) |
Ending balance |  | 2,892,682 |  | 3,236,657 | 3,466,896
Other Payables [Member] |  |  |  |  |
Activity of Loans [Abstract] |  |  |  |  |
Beginning balance |  | 42,483,169 |  | 39,669,167 |
Inflation adjustment restatement |  | (12,526,927) |  | (17,640,765) |
Accrued interest |  | 2,765,737 |  | 2,806,717 |
Effect of foreign exchange rate change |  | 13,755,162 |  | 18,971,692 |
VAT unpaid installments |  | 0 |  | 0 |
Proceeds from loans |  | 0 |  | 1,431,939 |
Acquisition of notes result |  | (399,356) |  | 0 |
Payment of loans | [3] | (1,354,111) |  | 0 |
Payment of redemption of loans |  | (999,811) |  | 0 |
Interest paid | [4] | (2,747,121) |  | (2,755,581) |
Ending balance |  | $ 40,976,742 |  | $ 42,483,169 | $ 39,669,167
[1] | Net of issuance expenses of Ps. 75,262 and Ps. 133,200 as of December 31, 2020 and 2019, respectively.
[2] | As of December 31, 2020, it is net of Notes repurchase of Ps 1,479,694.
[3] | For the years ended on December 31, 2020 and 2019, Ps. 190,969 and Ps. 203,173 respectively were cancelled through the offseting of debit balances maintained with the creditor (Pampa Energia).
[4] | For the years ended on December 31, 2020 and 2019, Ps. 280,934 and Ps. 195,168, respectively, were cancelled through the offseting of debit balances maintained with the creditor (Pampa Energia).

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- Definition The gain (loss) arising from the difference between the carrying amount of the financial liability extinguished and the measurement of the consideration paid (equity instruments issued) to the creditor. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRIC -Number 19 -IssueDate 2020-01-01 -Paragraph 11 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRIC&num=19&code=ifrs-tx-2020-en-r&anchor=para_11&doctype=Standard -URIDate 2020-01-01 + Details
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