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26. POST-EMPLOYMENT OBLIGATIONS (Details 4) - BRL (R$) R$ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of defined benefit plans [line items] |  |  |
Current liabilities | R$ 288 | R$ 253 |
Non-currentliabilities | 6,421 | 4,736 |
Net liabilities, Beginning balance | 4,989 | 4,186 | R$ 4,242
Expense recognized in Statement of income | 464 | 405 | 455
Contributions paid | (343) | (307) | (282)
Plan amendment - Past service |  |  | (619)
Actuarial losses (gains) | 2,775 | 903 | 537
Net liabilities, Ending balance | 6,709 | 4,989 | 4,186
Pension And Retirement Supplement Plans [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Net liabilities, Beginning balance | 2,170 | 2,068 | 1,679
Expense recognized in Statement of income | 197 | 193 | 175
Contributions paid | (200) | (178) | (160)
Plan amendment - Past service |  |  |
Actuarial losses (gains) | 805 | 87 | 374
Net liabilities, Ending balance | 2,972 | 2,170 | 2,068
Health Plan [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Net liabilities, Beginning balance | 2,344 | 1,809 | 1,711
Expense recognized in Statement of income | 222 | 183 | 189
Contributions paid | (131) | (118) | (113)
Plan amendment - Past service |  |  |
Actuarial losses (gains) | 576 | 402 | 66
Net liabilities, Ending balance | 3,102 | 2,344 | 1,809
Dental Plan [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Net liabilities, Beginning balance | 48 | 38 | 38
Expense recognized in Statement of income | 5 | 4 | 3
Contributions paid | (2) | (2) | (2)
Plan amendment - Past service |  |  |
Actuarial losses (gains) | 11 | 8 | 2
Net liabilities, Ending balance | 61 | 48 | 38
Life Insurance Plan [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Net liabilities, Beginning balance | 427 | 271 | 814
Expense recognized in Statement of income | 40 | 25 | 88
Contributions paid | (10) | (9) | (7)
Plan amendment - Past service |  |  | (619)
Actuarial losses (gains) | 130 | 26 | 55
Net liabilities, Ending balance | R$ 574 | R$ 427 | R$ 271

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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 141 -Subparagraph c -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_141_c_iii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of employer contributions to retirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2019-01-01 -Paragraph 35 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=26&code=ifrs-tx-2019-en-r&anchor=para_35_b_i&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_57_a&doctype=Standard -URIDate 2019-03-27 + Details
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