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26 EMPLOYEE BENEFITS (Details 16) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
EmployeeBenefitsLineItems [Line Items] |  |
General mortality table | Millennium Plan: 9.69% Plan 35%: 9.60% Supplementation: 9.59% | Millennium Plan: AT-2000 smoothed down by 10% segregated by gender. Plans 35%: AT-2000 Male aggravated by 15%. Supplementation: AT-2000 aggravated by 10% segregated by gender.
Inflation rate | 3.61% | 4.75%
Post-employment Healthcare Benefits [Member] |  |
EmployeeBenefitsLineItems [Line Items] |  |
General mortality table | AT 2000 segregated by gender | AT 2000 segregated by gender
Actuarial nominal discount rate | 6.78% | 9.62%
Inflation rate | 3.61% | 4.75%
Real increase in medical costs based on age (Aging Factor) | 0,5% - 3,00% real a.a. | 0.5% - 3.00%real a.a
Nominal increase medical costs growth rate | 6.98% | 8.15%
Average medical cost | 131936.00% | 105465.00%

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- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The expected rate of inflation that is used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Medical cost trend rate used as significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_144&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Represents the information about average medical cost (Claim cost). + References No definition available. + Details
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- References No definition available. + Details
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- Definition Represents the information about general mortality table. + References No definition available. + Details
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- Definition Real increase in medical costs based on age (Aging Factor) + References No definition available. + Details
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- Details
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