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30. EMPLOYEE BENEFITS (Details 9) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Disclosure of defined benefit plans [line items] |  |  |
Allocation of plan assets | R$ 3,766,193 | R$ 3,894,488 | R$ 3,403,906
Allocation of plan assets percent | 100.00% | 100.00% | 100.00%
Variable Income [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Allocation of plan assets | R$ 54,285 | R$ 25,236 | R$ 141,705
Allocation of plan assets percent | 1.44% | 0.65% | 4.16%
Fixed income [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Allocation of plan assets | R$ 3,438,735 | R$ 3,607,398 | R$ 3,050,099
Allocation of plan assets percent | 91.31% | 92.63% | 89.61%
Real estate [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Allocation of plan assets | R$ 182,145 | R$ 183,098 | R$ 52,091
Allocation of plan assets percent | 4.84% | 4.70% | 1.53%
Others [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Allocation of plan assets | R$ 91,028 | R$ 78,756 | R$ 160,011
Allocation of plan assets percent | 2.42% | 2.02% | 4.70%

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- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2020-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2020-en-r&anchor=para_57_a&doctype=Standard -URIDate 2020-01-01 + Details
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