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27. EMPLOYEE BENEFITS (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Disclosure of fair value of plan assets [line items] |  |  |
Actuarial assets | R$ (99,894) | R$ (111,281) |
Actuarial liabilities | 905,119 | 908,721 |
Pension plan benefits |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
Actuarial assets | (99,894) | (111,281) |
Actuarial liabilities | 7,982 | 41,937 |
Post-employment healthcare benefits |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
Actuarial assets | 0 | 0 |
Actuarial liabilities | R$ 897,137 | R$ 866,784 | R$ 691,262

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- Definition The amount of assets held by retirement benefit plans. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2018-01-01 -Paragraph 35 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=26&date=2018-03-01&anchor=para_35_a_i&doctype=Standard -URIDate 2018-03-16 + Details
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