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12. FINANCIAL INSTRUMENTS (Details 12) - 12 months ended Dec. 31, 2019 - Foreign Exchange Risk [Member] € in Thousands, $ in Thousands | USD ($) | EUR (€) | EUR (€)
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UNITED STATES | Swap CDI x Dollar [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | $ 67,000 |  |
Risk | Dollar | Dollar |
UNITED STATES | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | $ (3,713,598) |  |
Risk | Dollar | Dollar |
UNITED STATES | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | $ (1,115,885) |  |
Risk | Dollar | Dollar |
UNITED STATES | Dollar-to-Euro Swap [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | $ 12,875 |  |
Risk | Dollar | Dollar |
UNITED STATES | Probable Scenario [Member] | Swap CDI x Dollar [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | $ 31,081 |  |
UNITED STATES | Probable Scenario [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (1,722,738) |  |
UNITED STATES | Probable Scenario [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (517,659) |  |
UNITED STATES | Probable Scenario [Member] | Dollar-to-Euro Swap [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (2,463) |  |
UNITED STATES | Scenario 1 [Member] | Swap CDI x Dollar [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | 67,514 |  |
UNITED STATES | Scenario 1 [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (3,742,100) |  |
UNITED STATES | Scenario 1 [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (1,124,450) |  |
UNITED STATES | Scenario 1 [Member] | Dollar-to-Euro Swap [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | 9,021 |  |
UNITED STATES | Scenario 2 [Member] | Swap CDI x Dollar [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | 135,028 |  |
UNITED STATES | Scenario 2 [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (7,484,200) |  |
UNITED STATES | Scenario 2 [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | (2,248,900) |  |
UNITED STATES | Scenario 2 [Member] | Dollar-to-Euro Swap [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | $ 15,944 |  |
Euro Member Countries, Euro | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | € |  |  | € (17,915)
Risk | Euro | Euro |
Euro Member Countries, Euro | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | € |  |  | 6,085
Euro Member Countries, Euro | Probable Scenario [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | € (1,637) |
Euro Member Countries, Euro | Probable Scenario [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | 557 |
Euro Member Countries, Euro | Scenario 1 [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | (20,291) |
Euro Member Countries, Euro | Scenario 1 [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | 6,892 |
Euro Member Countries, Euro | Scenario 2 [Member] | Currency Position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | (40,582) |
Euro Member Countries, Euro | Scenario 2 [Member] | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | € 13,784 |
Cash flow hedges [member] | UNITED STATES |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | $ 2,530,713 |  |
Risk | Dollar | Dollar |
Cash flow hedges [member] | UNITED STATES | Probable Scenario [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | $ 1,173,998 |  |
Cash flow hedges [member] | UNITED STATES | Scenario 1 [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | 2,550,136 |  |
Cash flow hedges [member] | UNITED STATES | Scenario 2 [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | $ 5,100,272 |  |
Hedges of Net Investment in Foreign Operations [Member] | Euro Member Countries, Euro |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Notional amount | € |  |  | € 24,000
Risk | Euro | Euro |
Hedges of Net Investment in Foreign Operations [Member] | Euro Member Countries, Euro | Consolidated exchange position [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Risk | Euro | Euro |
Hedges of Net Investment in Foreign Operations [Member] | Euro Member Countries, Euro | Probable Scenario [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | € 11,359 |
Hedges of Net Investment in Foreign Operations [Member] | Euro Member Countries, Euro | Scenario 1 [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | 27,183 |
Hedges of Net Investment in Foreign Operations [Member] | Euro Member Countries, Euro | Scenario 2 [Member] |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Impact on profit or loss | € |  | € 54,366 |

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