RELATED PARTY TRANSACTIONS (Commercial Agreements) (Details) $ in Millions																	12 Months Ended	33 Months Ended
		Jan. 01, 2022 bbl / d	May 31, 2019 bbl / d	Jan. 01, 2019 bbl	Jul. 31, 2018 Railcars_per_day bbl / d	Apr. 16, 2018 USD ($) bbl	Nov. 01, 2017 bbl renewal	Aug. 04, 2017 dekatherm_per_day	Nov. 01, 2016	Aug. 31, 2016 bbl / d bbl renewal		May 01, 2016 bbl / d	May 15, 2015 bbl / d renewal	Dec. 12, 2014 bbl / d bbl renewal	May 08, 2014 bbl / d renewal	Jan. 24, 2013 bbl	Dec. 31, 2019 renewal	May 30, 2019 bbl / d
Related Party Transaction [Line Items]
Number of Contract Renewals | renewal																	2
Term of Renewal																	5 years
Amended and Restated Rail Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement	[1]														7 years 8 months
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity	[1]														125,000
Toledo Truck Unloading & Terminaling Services Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement															7 years 8 months
Number of Contract Renewals | renewal															2
Term of Renewal															5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity															5,500
Toledo Storage Facility Storage and Terminaling Services Agreement [Member] | Toledo Terminaling Facility [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement														10 years
Number of Contract Renewals | renewal														2
Term of Renewal														5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity														4,400
Toledo Storage Facility Storage and Terminaling Services Agreement [Member] | Toledo Storage Facility [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement														10 years
Number of Contract Renewals | renewal														2
Term of Renewal														5 years
Oil And Gas Plant, Maximum Storage Capacity | bbl														3,849,271
Delaware Pipeline Services Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement													10 years 8 months
Number of Contract Renewals | renewal													2
Term of Renewal													5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity													50,000
Delaware Pipeline Services Agreement - Magellan Connection [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement	[2]								2 years 5 months
Delaware City Truck Loading Services Agreement [Member] | Refined Clean Product [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement													10 years 8 months
Number of Contract Renewals | renewal													2
Term of Renewal													5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity													30,000
Delaware City Truck Loading Services Agreement [Member] | LPGs [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement													10 years 8 months
Number of Contract Renewals | renewal													2
Term of Renewal													5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity													5,000
East Coast Terminals Terminaling Services Agreements [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity	[3]											15,000
East Coast Terminals Tank Lease Agreements [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Maximum Storage Capacity | bbl																350,000
Torrance Valley Pipeline Transportation Services Agreement [Member] | Torrance Valley Pipeline - North [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement										10 years
Number of Contract Renewals | renewal										2
Term of Renewal										5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity										50,000
Torrance Valley Pipeline Transportation Services Agreement [Member] | Torrance Valley Pipeline - South [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement										10 years
Number of Contract Renewals | renewal										2
Term of Renewal										5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity			75,000							75,000	[4]							70,000
Torrance Valley Pipeline Transportation Services Agreement [Member] | Torrance Valley Pipeline - Midway Storage Tanks [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement										10 years
Number of Contract Renewals | renewal										2
Term of Renewal										5 years
Oil And Gas Plant, Maximum Storage Capacity | bbl										55,000
Torrance Valley Pipeline Transportation Services Agreement [Member] | Torrance Valley Pipeline - Emidio Storage Tanks [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement										10 years
Number of Contract Renewals | renewal										2
Term of Renewal										5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity										900,000
Torrance Valley Pipeline Transportation Services Agreement [Member] | Torrance Valley Pipeline - Belridge Storage Tanks [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement										10 years
Number of Contract Renewals | renewal										2
Term of Renewal										5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity										770,000
Paulsboro Natural Gas Pipeline Services Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement								15 years
Oil And Gas Plant, Maximum Storage Capacity | dekatherm_per_day								60,000
Knoxville Terminals Agreement [Member] | Terminaling Service [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement						5 years
Knoxville Terminals Agreement [Member] | Terminaling Service [Member] | PBF Logistics LP [Member] | Agreement Period One [Member]
Related Party Transaction [Line Items]
Oil and Gas Plant, Collaborative Agreement, Minimum Revenue Commitment | $						0.9
Knoxville Terminals Agreement [Member] | Terminaling Service [Member] | PBF Logistics LP [Member] | Agreement Period Two [Member]
Related Party Transaction [Line Items]
Oil and Gas Plant, Collaborative Agreement, Minimum Revenue Commitment | $						1.8
Knoxville Terminals Agreement [Member] | Terminaling Service [Member] | PBF Logistics LP [Member] | Agreement Period Three [Member]
Related Party Transaction [Line Items]
Oil and Gas Plant, Collaborative Agreement, Minimum Revenue Commitment | $						2.7
Knoxville Terminals Agreement [Member] | Tank Lease [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement						5 years
Oil And Gas Plant, Maximum Storage Capacity | bbl						115,334
Toledo Rail Loading Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement					7 years 5 months
Number of Contract Renewals					2
Term of Renewal					5 years
Oil and Gas Plant, Collaborative Agreement, Maximum Throughput Capacity | Railcars_per_day					50
Toledo Rail Loading Agreement [Member] | Product [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity | Railcars_per_day					30
Toledo Rail Loading Agreement [Member] | Premium Product [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity | Railcars_per_day					11.5
Chalmette Terminal Throughput Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement					1 year
Chalmette Rail Unloading Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement					7 years 5 months
Number of Contract Renewals					2
Term of Renewal					5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity					7,600
DSL Ethanol Throughput Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement					7 years 5 months
Number of Contract Renewals					2
Term of Renewal					5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity					5,000
Delaware City Terminaling Services Agreement [Member] | PBF Logistics LP [Member] | Scenario, Forecast [Member]
Related Party Transaction [Line Items]
Term of Agreement	[5]	4 years
Number of Contract Renewals		2
Term of Renewal		5 years
Oil And Gas Plant, Collaborative Agreement, Minimum Throughput Capacity		95,000
Chalmette Storage Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement							10 years
Number of Contract Renewals | renewal							2
Term of Renewal							5 years
Oil And Gas Plant, Maximum Storage Capacity | bbl							625,000
East Coast Storage Assets Terminal Storage Agreement [Member] | PBF Logistics LP [Member]
Related Party Transaction [Line Items]
Term of Agreement				8 years
Oil And Gas Plant, Maximum Storage Capacity | bbl				2,953,725
East Coast Terminals commercial agreements [Member] | PBF Logistics LP [Member] | Minimum [Member]
Related Party Transaction [Line Items]
Term of Agreement																	1 year
East Coast Terminals commercial agreements [Member] | PBF Logistics LP [Member] | Maximum [Member]
Related Party Transaction [Line Items]
Term of Agreement																	5 years

[1] (b)The Amended and Restated Rail Agreements, as amended and effective as of January 1, 2018, include the Amended and Restated Delaware City Rail Terminaling Services Agreement and the Amended and Restated Delaware West Ladder Rack Terminaling Services Agreement, each between Delaware City Terminaling Company LLC (“DCTC”) and PBF Holding, with the service fees thereunder being adjusted, including the addition of an ancillary fee paid by PBF Holding on an actual cost basis. In determining payments due under the Amended and Restated Rail Agreements, excess volumes throughput under the agreements shall apply against required payments in respect to the minimum throughput commitments on a quarterly basis and, to the extent not previously applied, on an annual basis against the MVCs. Effective January 1, 2019, the existing Amended and Restated Rail Agreements were further amended for the inclusion of services through certain rail infrastructure at the East Coast Storage Assets.

[2] (d)In connection with the inclusion of an additional destination at the Magellan connection under the Delaware Pipeline Services Agreement, PBF Holding and Delaware Pipeline Company LLC agreed to a two-year, five-month MVC (the “Magellan MVC”) under the Delaware Pipeline Services Agreement. The Magellan MVC expired on March 31, 2019, subsequent to which PBFX has been billing actual throughput on the Magellan connection.

[3] The East Coast Terminals Terminaling Service Agreements have no MVCs and are billed based on actual volumes throughput, other than a terminaling services agreement between PBFX’s East Coast Terminals’ Paulsboro, New Jersey location and PBF Holding’s Paulsboro refinery with a 15,000 bpd MVC.

[4] In connection with the TVPC Acquisition on May 31, 2019, the Torrance Valley Pipeline Transportation Services Agreement- South Pipeline was amended and restated to increase the MVC from 70,000 bpd to 75,000 bpd.

[5] The Delaware City Terminaling Services Agreement between DCTC and PBF Holding will commence in 2022 subsequent to the expiration of the Amended and Restated Rail Agreements and includes additional services to be provided by PBFX as operator of other rail facilities owned by PBF Holding’s subsidiaries.