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FINANCIAL RISK MANAGEMENT - Market risk (Details) $ in Millions, $ in Millions | Dec. 31, 2018 USD ($) | Dec. 31, 2018 ARS ($) | Dec. 31, 2017 ARS ($)
--- | --- | --- | ---
Financial risk management |  |  |
Financial debt |  | $ 79,312 | $ 16,009
Assets |  | 371,738 | 94,070
Liabilities |  | (142,825) | (39,042)
NDF | $ 166 |  |
Net liability position in foreign currency not covered by NDF contracts | 1,773 |  |
Currency risk |  |  |
Financial risk management |  |  |
Assets |  | 17,111 | 3,058
Liabilities |  | (90,217) | (11,131)
Assets (Liabilities) Net | (1,939) | (73,106) | $ (8,073)
Net liability position in foreign currency not covered by NDF | $ 1,773 | $ 66,848 |

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