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FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT - Sensitivity analysis - foreign exchange rate exposure (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 BRL (R$) | Dec. 31, 2019 BRL (R$)
Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 5.1967 |
Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 6.4959 |
Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 7.7951 |
Possible (-25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 3.8975 |
Remote (-50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 2.5984 |
Currency Risk | Cash and cash equivalents | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | R$ 6,370,201,000 |
Currency Risk | Cash and cash equivalents | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | 1,592,550,000 |
Currency Risk | Cash and cash equivalents | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | 3,185,101,000 |
Currency Risk | Trade accounts receivable | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | 1,938,614,000 |
Currency Risk | Trade accounts receivable | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | 484,654,000 |
Currency Risk | Trade accounts receivable | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial assets attributable to an increase in measurement input | 969,307,000 |
Currency Risk | Trade accounts payable | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (492,617,000) |
Currency Risk | Trade accounts payable | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (123,154,000) |
Currency Risk | Trade accounts payable | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (246,309,000) |
Currency Risk | Loans and financing | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (58,145,087,000) |
Currency Risk | Loans and financing | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (14,536,272,000) |
Currency Risk | Loans and financing | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (29,072,544,000) |
Currency Risk | Liabilities for asset acquisition and subsidiaries | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (313,022,000) |
Currency Risk | Liabilities for asset acquisition and subsidiaries | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (78,256,000) |
Currency Risk | Liabilities for asset acquisition and subsidiaries | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial liabilities attributable to an increase in measurement input | (156,511,000) |
Currency Risk | Derivatives Non Deliverable Forward ("NDF") | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | 7,948,000 |
Currency Risk | Derivatives Non Deliverable Forward ("NDF") | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (102,756,000) |
Currency Risk | Derivatives Non Deliverable Forward ("NDF") | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (205,512,000) |
Currency Risk | Derivatives Non Deliverable Forward ("NDF") | Possible (-25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | 102,756,000 |
Currency Risk | Derivatives Non Deliverable Forward ("NDF") | Remote (-50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | 205,512,000 |
Currency Risk | Derivative options | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (780,896,000) |
Currency Risk | Derivative options | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (3,386,080,000) |
Currency Risk | Derivative options | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (7,232,365,000) |
Currency Risk | Derivative options | Possible (-25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | 3,253,805,000 |
Currency Risk | Derivative options | Remote (-50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | 7,301,982,000 |
Currency Risk | Derivative swaps | Probable |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (6,503,859,000) |
Currency Risk | Derivative swaps | Possible (+25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (4,436,537,000) |
Currency Risk | Derivative swaps | Remote (+50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to an increase in measurement input | (8,873,083,000) |
Currency Risk | Derivative swaps | Possible (-25%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | 4,436,554,000 |
Currency Risk | Derivative swaps | Remote (-50%) |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Effect on profit or loss and equity due to changes in fair value of financial instruments attributable to a decrease in measurement input | R$ 8,873,100,000 |
Currency Risk | Mark to Market Derivatives |  |
FINANCIAL INSTRUMENTS AND RISKS MANAGEMENT |  |
Closing foreign exchange rate | 5.1967 | 4.0307
Percentage increase in foreign exchange rate | 29.00% |
Maximum percentage exposure in U.S. Dollars | 75.00% |

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