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CASH AND CASH EQUIVALENTS AND INVESTMENTS. ADDITIONAL INFORMATION ON THE CONSOLIDATED STATEMENTS OF CASH FLOWS - Additional information required by IAS 7 (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Reconciliation of liabilities generated by financing activities |  |  |
Proceeds from financial debt | $ 27,769 | $ 1,264 | $ 15,305
Payment of financial debt | 4,512 | 1,623 | 12,679
Payment of interest and related expenses | 3,724 | 1,292 | $ 1,834
Current and Non-current Borrowings [Member] |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 16,009 |  |
Transfers | 18,104 |  |
Cash Flows | 19,129 |  |
Accrued interests | 4,549 |  |
Exchange differences and currency translation adjustments | 21,521 |  |
Balances as of December 31, 2017 | 79,312 | 16,009 |
Bank overdrafts |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Transfers | 199 |  |
Cash Flows | 2,176 |  |
Exchange differences and currency translation adjustments | (99) |  |
Balances as of December 31, 2017 | 2,276 |  |
Bank loans - principal |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 287 |  |
Transfers | 12,097 |  |
Cash Flows | 25,258 |  |
Exchange differences and currency translation adjustments | 9,563 |  |
Balances as of December 31, 2017 | 47,205 | 287 |
Notes - principal |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 13,767 |  |
Transfers | 3,186 |  |
Cash Flows | (3,905) |  |
Exchange differences and currency translation adjustments | 5,783 |  |
Balances as of December 31, 2017 | 18,831 | 13,767 |
NDF |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Transfers | 25 |  |
Cash Flows | (44) |  |
Accrued interests | 119 |  |
Balances as of December 31, 2017 | 100 |  |
By purchase of equipment |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 1,943 |  |
Cash Flows | (256) |  |
Accrued interests | 35 |  |
Exchange differences and currency translation adjustments | 357 |  |
Balances as of December 31, 2017 | 2,079 | 1,943 |
Companies under sect. 33 - Law No. 19,550 and Related Parties |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 6 |  |
Exchange differences and currency translation adjustments | (6) |  |
Balances as of December 31, 2017 |  | 6 |
Accrued interests and related expenses |  |  |
Reconciliation of liabilities generated by financing activities |  |  |
Balances as of December 31, 2016 | 6 |  |
Transfers | 2,597 |  |
Cash Flows | (4,100) |  |
Accrued interests | 4,395 |  |
Exchange differences and currency translation adjustments | 5,923 |  |
Balances as of December 31, 2017 | $ 8,821 | $ 6 |

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