COMMITMENTS AND CONTINGENCIES (Narrative) (Details) R$ in Millions				1 Months Ended	2 Months Ended	22 Months Ended	31 Months Ended
	Oct. 03, 2019 USD ($)	Jun. 05, 2017 BRL (R$)	Jan. 27, 2017 producer	Oct. 13, 2016 producer claim	Oct. 16, 2019 claim	Oct. 22, 2019 claim	Dec. 29, 2019 BRL (R$) payment	Dec. 29, 2019 USD ($)
Other Commitments [Line Items]
Outstanding purchase contracts, payable in 2020								$ 328,600,000
Outstanding purchase contracts, payable in 2021								0
In Re Broiler Chicken Antitrust Limitation
Other Commitments [Line Items]
Number of other producers named in lawsuit | producer			4	13
Number of complaints filed | claim				3		32
Sciabacucchi v. JBS S.A. et al.
Other Commitments [Line Items]
Payment to be received from agreement	$ 42,500,000
Jien v. Perdue Farms, Inc. and Earnest v. Perdue Farms, Inc. et al
Other Commitments [Line Items]
Number of complaints filed | claim					4
Leniency Agreement
Other Commitments [Line Items]
Litigation settlement, amount awarded to other party | R$		R$ 10,300.0
Litigation settlement, payment period		25 years
Number of payments | payment							5
Periodic payments | R$		R$ 50.0
Litigation settlement, payments | R$							R$ 250.0
Tax Year 2009 | Mexican Tax Authority | Foreign Tax Authority
Other Commitments [Line Items]
Estimate of possible loss								24,300,000
Tax Year 2010 | Mexican Tax Authority | Foreign Tax Authority
Other Commitments [Line Items]
Estimate of possible loss								$ 16,100,000
J&F Investimentos S.A. | Joesley Mendonca Batista and Wesley Mendonca Batista
Other Commitments [Line Items]
Ownership percentage								100.00%