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CONTINGENT LIABILITIES (Brazilian Federal Communication Agency - Anatel) (Details) R$ in Millions |  |  | 1 Months Ended
--- | --- | --- | ---
Jul. 13, 2015 USD ($) | Mar. 05, 2012 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 BRL (R$)
Loss Contingencies [Line Items] |  |  |  |
Amount of compensation to plaintiff |  | $ 9,300 |  |
ILS [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Amount of compensation to plaintiff |  | $ 30,000 |  |
Unfavorable Regulatory Action FUST Contribution [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Additional tax assessment |  |  | $ 3,900,000 |
Unfavorable Regulatory Action FUST Contribution [Member] | Brazil, Brazil Real |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Additional tax assessment | R$ |  |  |  | R$ 21.7
Unfavorable Regulatory Action [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Total amount claimed | $ 96,000,000 |  |  |
Unfavorable Regulatory Action [Member] | ILS [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Total amount claimed | $ 300,000,000 |  |  |

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