EMPLOYEE BENEFITS - Weighted Principal Assumptions (Details) R$ in Millions |
Dec. 31, 2022
BRL (R$)
|
Dec. 31, 2021
BRL (R$)
|
Dec. 31, 2020
BRL (R$)
|
|---|---|---|---|
| Actuarial assumption of medical cost trend rates [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Increase in assumption | R$ (94.3) | R$ (114.7) | R$ (139.4) |
| Decrease in assumption | 81.8 | 98.6 | 118.6 |
| Actuarial assumption of discount rates [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Increase in assumption | 307.9 | 442.0 | 461.0 |
| Decrease in assumption | (328.0) | (470.3) | (492.6) |
| Actuarial assumption of expected rates of salary increases [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Increase in assumption | (17.6) | (19.8) | (24.3) |
| Decrease in assumption | 16.5 | 18.6 | 23.3 |
| Actuarial assumption of life expectancy after retirement [member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Increase in assumption | (221.5) | (287.6) | (295.6) |
| Decrease in assumption | R$ 213.5 | R$ 279.5 | R$ 287.1 |
| Change in assumption, year | 1 |