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33. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Details 14) - BRL (R$) R$ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of financial liabilities [line items] |  |  |  |
Total liabilities | R$ 34,035 | R$ 43,916 |  |
Cash and cash equivalents | (536) | (891) |  |
Net assets (liabilities) exposed | (922) | (712) |  |
Total equity | 15,891 | 15,939 | R$ 14,330 | R$ 12,934
Capital Management [Member] |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |
Total liabilities | 34,035 | 43,916 |  |
Cash and cash equivalents | (536) | (891) |  |
Restricted cash | (12) | (91) |  |
Net assets (liabilities) exposed | 33,487 | 42,934 |  |
Total equity | R$ 15,891 | R$ 15,939 |  |
Net liabilities / equity | 2.11% | 2.70% |  |

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