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EMPLOYEE BENEFITS - Post-employment defined benefit pension plan (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2021	Dec. 31, 2020
American Plans | Discount rate
EMPLOYEE BENEFITS
Increase in actuarial assumption (as a percent)	1.00%
Decrease in actuarial assumption (as a percent)	1.00%
Increase (decrease) in defined benefit obligation due to increase in actuarial assumption	R$ (17,822)
Increase (decrease) in defined benefit obligation due to decrease in actuarial assumption	10,392
Post-employment defined benefit pension plans
EMPLOYEE BENEFITS
Accumulated other comprehensive income	R$ 920,478	R$ 1,173,010

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The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income]

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The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]

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The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]]

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