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The main actuarial assumptions and demographic data used in the actuarial calculations are summarized below: (Details) - Number
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Medical Plan [Member]    
IfrsStatementLineItems [Line Items]    
Discount rate 8.75%  
Inflation rate 3.25%  
Medical inflation 6.35%  
Number of active participants 14,584 1,245
Number of assisted beneficiary participants 1,686 559
Medical Plan [Member] | Schedule of mortality [Member]    
IfrsStatementLineItems [Line Items]    
Schedule of mortality, disabled, disabled mortality, turnover - BRF's historical  AT-2000 smoothed by 10%   AT-2000 smoothed by 10% 
Medical Plan [Member] | Schedule of turnover - BRF's historical [Member]    
IfrsStatementLineItems [Line Items]    
Schedule of mortality, disabled, disabled mortality, turnover - BRF's historical 2021 2020
F G T S Penalty [Member]    
IfrsStatementLineItems [Line Items]    
Discount rate 8.62% 6.51%
Inflation rate 3.25% 3.25%
Wage growth rate 3.25% 3.25%
F.G.T.S. balance growth 3.70% 3.80%
Number of active participants 96,635 93,245
F G T S Penalty [Member] | Schedule of mortality [Member]    
IfrsStatementLineItems [Line Items]    
Schedule of mortality, disabled, disabled mortality, turnover - BRF's historical  AT-2000 smoothed by 10%   AT-2000 smoothed by 10% 
Schedule of mortality, disabled, disabled mortality, turnover - BRF's historical  RRB-44   RRB-44 
F G T S Penalty [Member] | Schedule of turnover - BRF's historical [Member]    
IfrsStatementLineItems [Line Items]    
Schedule of mortality, disabled, disabled mortality, turnover - BRF's historical 2021 2020
Others [Member]    
IfrsStatementLineItems [Line Items]    
Wage growth rate 9.04% 6.39%