STOCK-BASED COMPENSATION (Share-Based Compensation Activity) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Weighted Average Remaining Contractual Life (in years)
Total estimated fair value, vested in period	$ 15.5	$ 11.2	$ 3.3
Employee Stock Option | PBF Energy
Options & Restricted Stock
Options, beginning balance (in shares)	7,453,454
Granted (in shares)	0
Exercised/Vested (in shares)	(1,004,884)
Forfeited (in shares)	(17,695)
Options, ending balance (in shares)	6,430,875	7,453,454
Options exercisable and vested (in shares)	6,426,041
Options expected to vest (in shares)	4,834
Weighted Average Exercise Price
Options, beginning balance (in dollars per share)	$ 23.98
Exercised (in dollars per share)	21.69
Forfeited (in dollars per share)	15.37
Options, ending balance (in dollars per share)	24.36	$ 23.98
Weighted average exercise price, exercisable and vested (in dollars per share)	24.35
Weighted average exercise price, expected to vest (in dollars per share)	$ 28.81
Weighted Average Remaining Contractual Life (in years)
Weighted average remaining contractual term, outstanding (in years)	4 years 2 months 4 days	5 years 3 months 3 days
Weighted average remaining contractual term, exercisable and vested (in years)	4 years 2 months 4 days
Weighted average remaining contractual term, expected to vest (in years)	7 years 5 months 8 days
Restricted Stock | PBF Energy
Options & Restricted Stock
Options, beginning balance (in shares)	1,052,506
Granted (in shares)	1,350,576
Exercised/Vested (in shares)	(460,294)
Forfeited (in shares)	(18,893)
Options, ending balance (in shares)	1,923,895	1,052,506
Weighted Average Exercise Price
Options, beginning balance (in dollars per share)	$ 41.43
Granted (in dollars per share)	28.60	$ 44.90	$ 35.73
Exercised (in dollars per share)	40.01
Forfeited (in dollars per share)	41.81
Options, ending balance (in dollars per share)	$ 32.60	$ 41.43
Performance Share Units | PBF Energy
Options & Restricted Stock
Options, beginning balance (in shares)	631,443
Granted (in shares)	253,223
Options, ending balance (in shares)	612,410	631,443
Weighted Average Exercise Price
Options, beginning balance (in dollars per share)	$ 38.48
Granted (in dollars per share)	34.04	$ 56.35	$ 45.91
Exercised (in dollars per share)	18.73
Forfeited (in dollars per share)	49.78
Options, ending balance (in dollars per share)	$ 44.14	$ 38.48
Weighted Average Remaining Contractual Life (in years)
Total estimated fair value, vested in period	$ 14.1	$ 30.9	$ 2.0