Schedule of liabilities related to other benefits (Details) - BRL (R$) R$ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Medical Plan [Member]
IfrsStatementLineItems [Line Items]
Present value of actuarial liabilities	R$ 195,345	R$ 185,802
Net actuarial liabilities	195,345	185,802
Beginning balance of present value of actuarial liabilities	185,802	187,274
Interest on actuarial liabilities	13,694	13,586
Past service costs	40,800
Benefits paid directly by the Company	(9,008)	(7,122)
Business combination	2,081
Actuarial (gains) losses - experience	(6,892)	1,167
Actuarial (gains) losses - demographic hypothesis	(6,403)	13,462
Actuarial losses - economic hypothesis	(24,729)	(22,565)
Net defined benefit liability (asset) at end of period	195,345	185,802
Medical Plan [Member] \| Present value of defined benefit obligation [member]
IfrsStatementLineItems [Line Items]
Interest on actuarial liabilities	(13,694)	(13,586)
Past service costs	(40,800)
Benefits paid directly by the Company	9,008	7,122
Contributions of the sponsor	(9,008)	(7,122)
Actuarial gains (losses)	38,024	7,936
Cost recognizzed in statement of income	(54,494)	(13,586)
Current service costs	(551)
Interest on actuarial liabilities	(16,805)	(13,975)
Estimated costs for the next year	(17,356)	(13,975)
F G T S Penalty [Member]
IfrsStatementLineItems [Line Items]
Present value of actuarial liabilities	53,881	282,229
Net actuarial liabilities	53,881	282,229
Beginning balance of present value of actuarial liabilities	282,229	247,485
Interest on actuarial liabilities	15,711	13,993
Current service costs	14,833	12,718
Past service costs	(135,180)
Benefits paid directly by the Company	(6,173)	(4,225)
Actuarial (gains) losses - experience	991	14,725
Actuarial (gains) losses - demographic hypothesis	(91,531)	10,195
Actuarial losses - economic hypothesis	(26,999)	(12,662)
Net defined benefit liability (asset) at end of period	53,881	282,229
F G T S Penalty [Member] \| Present value of defined benefit obligation [member]
IfrsStatementLineItems [Line Items]
Interest on actuarial liabilities	(15,711)	(13,993)
Current service costs	(14,833)	(12,718)
Past service costs	135,180
Benefits paid directly by the Company	6,173	4,225
Contributions of the sponsor	(6,173)	(4,225)
Actuarial gains (losses)	117,539	(12,258)
Cost recognizzed in statement of income	104,636	(26,711)
Current service costs	(2,480)	(14,833)
Interest on actuarial liabilities	(4,071)	(15,711)
Estimated costs for the next year	(6,551)	(30,544)
Award For Length Of Service [Member]
IfrsStatementLineItems [Line Items]
Present value of actuarial liabilities	98,474	108,908
Net actuarial liabilities	98,474	108,908
Beginning balance of present value of actuarial liabilities	108,908	103,284
Interest on actuarial liabilities	6,656	6,275
Current service costs	6,319	5,741
Benefits paid directly by the Company	(15,163)	(13,887)
Actuarial (gains) losses - experience	10,853	10,759
Actuarial (gains) losses - demographic hypothesis	(7,125)	5,717
Actuarial losses - economic hypothesis	(11,974)	(8,981)
Net defined benefit liability (asset) at end of period	98,474	108,908
Award For Length Of Service [Member] \| Present value of defined benefit obligation [member]
IfrsStatementLineItems [Line Items]
Interest on actuarial liabilities	(6,656)	(6,275)
Current service costs	(6,319)	(5,741)
Benefits paid directly by the Company	15,163	13,887
Contributions of the sponsor	(15,163)	(13,887)
Immediate recognition of reduction	8,246	(7,495)
Cost recognizzed in statement of income	(4,729)	(19,511)
Current service costs	(5,221)	(6,319)
Interest on actuarial liabilities	(7,997)	(6,656)
Estimated costs for the next year	(13,218)	(12,975)
Other [Member]
IfrsStatementLineItems [Line Items]
Present value of actuarial liabilities	203,202	199,616
Net actuarial liabilities	203,202	199,616
Beginning balance of present value of actuarial liabilities	199,616	151,431
Interest on actuarial liabilities	10,377	8,883
Current service costs	23,375	23,174
Past service costs	15,847
Benefits paid directly by the Company	(19,739)	(18,902)
Business combination	286
Actuarial (gains) losses - experience	9,289	10,548
Actuarial (gains) losses - demographic hypothesis	(13,165)	1,535
Actuarial losses - economic hypothesis	(11,396)	4,778
Net defined benefit liability (asset) at end of period	203,202	199,616
Other [Member] \| Present value of defined benefit obligation [member]
IfrsStatementLineItems [Line Items]
Interest on actuarial liabilities	(10,377)	(8,883)
Current service costs	(23,375)	(23,174)
Past service costs	(15,847)
Actuarial gains (losses)	15,272	(16,861)
Exchange variation	3,002	2,246
Cost recognizzed in statement of income	(49,599)	(32,057)
Current service costs	(20,720)	(22,021)
Interest on actuarial liabilities	(12,646)	(11,217)
Estimated costs for the next year	(33,366)	(33,238)
Others [Member] \| Present value of defined benefit obligation [member]
IfrsStatementLineItems [Line Items]
Benefits paid directly by the Company	19,739	18,902
Contributions of the sponsor	R$ (19,739)	R$ (18,902)

No definition available.

Name:	brf_BusinessCombinationToPlanByEmployerNetDefinedBenefitLiabilityAsset
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount represents value of contributions to plan by employer net defined benefit liabilities asset.

+ References

No definition available.

+ Details

Name:	brf_ContributionsToPlanByEmployerNetDefinedBenefitLiabilitiesAsset
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

It represents as a costs recognized in statement of income.

+ References

No definition available.

+ Details

Name:	brf_CostsRecognizedInStatementOfIncome
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

It represents as a estimated costs for next period.

+ References

No definition available.

+ Details

Name:	brf_EstimatedCostsForNextPeriod
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

It represent as estimated current service costs.

+ References

No definition available.

+ Details

Name:	brf_EstimatedCurrentServiceCosts
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

It represents as a estimated interest on actuarial liabilities.

+ References

No definition available.

+ Details

Name:	brf_EstimatedInterestOnActuarialLiabilities
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	brf_ExchangeVariationOfNetDefinedBenefitLiabilityAsset
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	brf_IfrsStatementLineItems
Namespace Prefix:	brf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represent information about the immediate recognition of reduction.

+ References

No definition available.

+ Details

Name:	brf_ImmediateRecognitionOfReduction
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	brf_NetLiabilities
Namespace Prefix:	brf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_ii&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in financial assumptions that result in remeasurements of the net defined benefit liability (asset). Financial assumptions deal with items such as: (a) the discount rate; (b) benefit levels, excluding any cost of the benefits to be met by employees, and future salary; (c) in the case of medical benefits, future medical costs, including claim handling costs (ie the costs that will be incurred in processing and resolving claims, including legal and adjuster's fees); and (d) taxes payable by the plan on contributions relating to service before the reporting date or on benefits resulting from that service. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph c
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_iii&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from experience adjustments that result in remeasurements of the net defined benefit liability (asset). Experience adjustments deal with the effects of differences between the previous actuarial assumptions and what has actually occurred. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_f&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from contributions to a defined benefit plan by plan participants. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

+ Details

Name:	ifrs-full_ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from employee service in the current period. [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_a&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 57
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_57_a&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_DefinedBenefitObligationAtPresentValue
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_b&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 140
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_LiabilityAssetOfDefinedBenefitPlans
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The increase (decrease) in the net defined benefit liability (asset) resulting from past service cost. Past service cost is the change in the present value of the defined benefit obligation for employee service in prior periods, resulting from a plan amendment (the introduction or withdrawal of, or changes to, a defined benefit plan) or a curtailment (a significant reduction by the entity in the number of employees covered by a plan). [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2021-01-01
-Paragraph 141
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_d&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_PastServiceCostNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=brf_MedicalPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PresentValueOfDefinedBenefitObligationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=brf_FGTSPenaltyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=brf_AwardForLengthOfServiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=brf_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=brf_OthersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: