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FINANCIAL INSTRUMENTS - Financial instruments per category (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
FINANCIAL INSTRUMENTS |  |
Financial assets | R$ 9,291,006 | R$ 12,712,924
Financial liabilities | 22,104,962 | 25,257,075
Financial income from assets | 264,708 | 400,273
Financial income (expenses) from liabilities | (1,408,056) | (1,345,528)
Liabilities at fair value with gains and losses recognized in income |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 1,267 | 6,584
Financial income (expenses) from liabilities | (12,503) | (58,068)
Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 22,103,695 | 25,250,491
Financial income (expenses) from liabilities | (1,395,553) | (1,287,460)
Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 8,389,250 | 11,608,513
Financial income from assets | 177,466 | 100,150
Assets at fair value with gains and losses recognized in income |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 901,756 | 1,091,460
Financial income from assets | 87,242 | 300,123
Assets at fair value with gains and losses recognized in shareholder's equity |  |
FINANCIAL INSTRUMENTS |  |
Financial assets |  | 12,951
Trade accounts payable |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 3,179,954 | 2,743,818
Trade accounts payable | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 3,179,954 | 2,743,818
Loans and Financing |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 16,461,656 | 20,417,810
Loans and Financing | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 16,461,656 | 20,417,810
Debentures |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 47,928 | 165,423
Debentures | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 47,928 | 165,423
FIDC Obligation |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 1,135,077 | 1,007,259
FIDC Obligation | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 1,135,077 | 1,007,259
Other current liabilities |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 625,410 | 514,599
Other current liabilities | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 625,410 | 514,599
Other non-current liabilities |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 653,670 | 401,582
Other non-current liabilities | Other financial liabilities at amortized cost |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 653,670 | 401,582
Unrealized losses on financial instruments |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 1,267 | 6,584
Unrealized losses on financial instruments | Liabilities at fair value with gains and losses recognized in income |  |
FINANCIAL INSTRUMENTS |  |
Financial liabilities | 1,267 | 6,584
Cash and cash equivalents |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,555,338 | 5,063,383
Cash and cash equivalents | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,555,338 | 5,063,383
Short-term investments |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 821,518 | 1,024,411
Short-term investments | Assets at fair value with gains and losses recognized in income |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 821,518 | 1,024,411
Unrealized gains on financial instruments |  |
FINANCIAL INSTRUMENTS |  |
Financial assets |  | 12,951
Unrealized gains on financial instruments | Assets at fair value with gains and losses recognized in shareholder's equity |  |
FINANCIAL INSTRUMENTS |  |
Financial assets |  | 12,951
Trade accounts receivable |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,798,420 | 3,576,699
Trade accounts receivable | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,798,420 | 3,576,699
Related parties |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 51,839 | 57,541
Related parties | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 51,839 | 57,541
Judicial deposits |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,051,181 | 1,861,784
Judicial deposits | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 2,051,181 | 1,861,784
Other current assets |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 469,737 | 668,895
Other current assets | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 469,737 | 668,895
Other non-current assets |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 542,973 | 447,260
Other non-current assets | Loans and receivables |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | 462,735 | 380,211
Other non-current assets | Assets at fair value with gains and losses recognized in income |  |
FINANCIAL INSTRUMENTS |  |
Financial assets | R$ 80,238 | R$ 67,049

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