Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenues	$ 6,551.9		$ 7,440.5		$ 11,760.6	$ 13,240.1
Cost and expenses:
Cost of products and other	6,025.4		6,512.2		10,301.6	11,701.8
Operating expenses (excluding depreciation and amortization expense as reflected below)	409.7		402.7		863.1	814.1
Depreciation and amortization expense	95.3		82.8		189.6	159.6
Cost of sales	6,530.4		6,997.7		11,354.3	12,675.5
General and administrative expenses (excluding depreciation and amortization expense as reflected below)	46.6		51.8		97.8	110.1
Depreciation and amortization expense	2.9		2.6		5.7	5.3
Equity income in investee	(3.2)		(4.4)		(7.9)	(8.4)
Loss on sale of assets	0.8		0.6		0.8	0.7
Total cost and expenses	6,577.5		7,048.3		11,450.7	12,783.2
Income (loss) from operations	(25.6)		392.2		309.9	456.9
Other income (expense):
Change in fair value of catalyst leases	0.5		4.1		(2.6)	4.1
Interest expense, net	(29.6)		(33.0)		(57.0)	(66.3)
Other non-service components of net periodic benefit cost	0.0		0.2		(0.1)	0.5
Income (loss) before income taxes	(54.7)		363.5		250.2	395.2
Income tax expense (benefit)	1.8		(4.0)		(5.4)	(4.7)
Net income (loss)	(56.5)	$ 312.1	367.5	$ 32.4	255.6	399.9
Less: net income attributable to noncontrolling interests	0.1		0.0		0.1	0.0
Net income (loss) attributable to PBF Holding Company LLC	$ (56.6)		$ 367.5		$ 255.5	$ 399.9