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30. EMPLOYEE BENEFITS (Details 17) - Healthcare plan [member] R$ in Thousands | 12 Months Ended
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Dec. 31, 2020 BRL (R$) shares
Possible Increase [member] | Actuarial assumption of discount rates [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level | 0.50%
Effect on current service cost and on interest on actuarial obligations | R$ | R$ 1,216
Effect on present value of obligations | shares | (30,300)
Possible Increase [member] | Actuarial assumption of medical inflation [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level | 1.00%
Effect on current service cost and on interest on actuarial obligations | R$ | R$ 4,749
Effect on present value of obligations | shares | 72,688
Possible Increase [member] | Actuarial assumption of mortality table [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level, year | +1 year
Effect on current service cost and on interest on actuarial obligations | R$ | R$ 3,123
Effect on present value of obligations | shares | 47,797
Possible Decrease [member] | Actuarial assumption of discount rates [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level | (0.50%)
Effect on current service cost and on interest on actuarial obligations | R$ | R$ (1,339)
Effect on present value of obligations | shares | 33,447
Actuarial assumption of medical inflation [member] | Actuarial assumption of discount rates [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level | (1.00%)
Effect on current service cost and on interest on actuarial obligations | R$ | R$ (3,978)
Effect on present value of obligations | shares | (60,887)
Actuarial assumption of mortality table [member] | Actuarial assumption of mortality rates [member] |
Disclosure of defined benefit plans [line items] |
Sensitivity level, year | - 1 year
Effect on current service cost and on interest on actuarial obligations | R$ | R$ (2,925)
Effect on present value of obligations | shares | (44,768)

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