COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Millions		3 Months Ended	12 Months Ended
	Feb. 01, 2020	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Environmental Matters
Environmental liabilities			$ 150.6	$ 155.8
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]			Accrued expenses	Accrued expenses
Environmental liabilities, long-term			$ 141.6	$ 140.1
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration]			Other long-term liabilities	Other long-term liabilities
Tax Receivable Agreement [Abstract]
Percent of tax benefit received from increases in tax basis paid to stockholders			85.00%
Percentage of ownership in PBF LLC			100.00%
Payable to related parties, tax receivable agreement, total			$ 293.6	$ 336.6
PBF Energy | Class A Common Stock
Tax Receivable Agreement [Abstract]
Percentage of ownership in PBF LLC			99.30%	99.30%
Martinez Acquistion
Contingent Consideration
Initial Term	4 years
Payment for contingent consideration, liability, operating activities		$ 18.8	$ 18.8
Business combination, contingent consideration, liability				$ 21.6
Environmental Issue | Torrance Refinery
Environmental Matters
Environmental liabilities			$ 110.6	$ 114.9
Executive | Minimum
Employment Agreements
Potential lump sum payment as a multiple of base salary			1.50
Executive | Maximum
Employment Agreements
Potential lump sum payment as a multiple of base salary			2.99