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13. FINANCIAL INSTRUMENTS (Details 2) - BRL (R$) R$ / shares in Units, R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of detailed information about financial instruments [line items] |  |  |
Quantity (in shares) | 220,298,749 | 223,434,849 |
Closing Balance | R$ 2,279,189 | R$ 2,222,433 |
Fair Value Adjustment Recognized in profit or loss | 96,133 |  |
Reclassification of Comprehensive Income for the year (note 31) | R$ (1,655,813) | R$ 0 | R$ 0
Sale of shares, quantity | 3,136,100 |  |
Sale of shares, share price | R$ 12.56 |  |
Sale of shares, Cash Received | R$ 39,377 |  |
USIM3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Quantity (in shares) | 107,156,651 | 107,156,651 |
Share price | R$ 11.44 | R$ 10.83 |
Closing Balance | R$ 1,225,872 | R$ 1,160,506 |
Fair Value Adjustment Recognized in profit or loss | 65,366 |  |
Reclassification of Comprehensive Income for the year (note 31) | R$ 694,685 |  |
USIM5 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Quantity (in shares) | 111,144,456 | 114,280,556 |
Share price | R$ 9.22 | R$ 9.10 |
Closing Balance | R$ 1,024,752 | R$ 1,039,953 |
Fair Value Adjustment Recognized in profit or loss | 24,176 |  |
Reclassification of Comprehensive Income for the year (note 31) | R$ 865,264 |  |
Sale of shares, quantity | 3,136,100 |  |
Sale of shares, share price | R$ 12.56 |  |
Sale of shares, Cash Received | R$ 39,377 |  |
PATI3 |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Quantity (in shares) | 1,997,642 | 1,997,642 |
Share price | R$ 14.30 | R$ 11.00 |
Closing Balance | R$ 28,565 | R$ 21,974 |
Fair Value Adjustment Recognized in profit or loss | 6,591 |  |
Reclassification of Comprehensive Income for the year (note 31) | R$ (269) |  |

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