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27. EMPLOYEE BENEFITS (Details 14) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of defined benefit plans [line items] |  |  |
Actuarial gain (loss) on obligation | R$ (15,224) | R$ 166,540 |
Gain (loss) recognized in shareholders' equity | (66,437) | 129,913 |
Post-employment healthcare benefits |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Actuarial gain (loss) on obligation | 16,237 | 170,445 | R$ 210,257
Gain (loss) recognized in shareholders' equity | R$ 16,237 | R$ 170,445 | R$ 210,257

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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 141 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_141_c&doctype=Standard -URIDate 2018-03-16 + Details
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