Condensed Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2019	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents		$ 467.3			$ 561.7	$ 1,013.4		$ 526.2
Accounts receivable		873.6			710.7
Accounts receivable - affiliate		8.2			12.0
Inventories		2,130.4			1,864.1
Prepaid and other current assets		51.5			52.5
Total current assets		3,531.0			3,201.0
Property, plant and equipment, net		3,119.4			2,971.2
Investment in equity method investee		0.0			169.5
Operating Lease, Right-of-Use Asset		1,011.0		$ 853.9
Deferred charges and other assets, net		981.8			871.8
Total assets		8,629.4			7,213.5
Current liabilities:
Accounts payable		514.6			483.8
Accounts payable - affiliate		66.4			49.5
Accrued expenses		1,642.6			1,579.0
Operating Lease, Liability, Current		153.8
Current debt	[1]	0.0			2.4
Deferred revenue		10.1			17.1
Total current liabilities		2,387.5			2,131.8
Long-term debt		1,262.7			1,258.0
Deferred tax liabilities		32.9			40.4
Operating Lease, Liability, Noncurrent		842.3
Other long-term liabilities		254.0			253.5
Total liabilities		4,779.4			3,683.7
Commitments and contingencies (Note 5)
Equity:
Member’s equity		2,732.2			2,652.5
Retained earnings		1,129.6			890.3
Accumulated other comprehensive loss		(22.8)			(23.9)
Total PBF Holding Company LLC equity		3,839.0			3,518.9
Noncontrolling interest		11.0			10.9
Total equity		3,850.0	$ 3,774.0		3,529.8	$ 4,061.4	$ 3,589.1	$ 3,183.9
Total liabilities and equity		8,629.4			7,213.5
Third Party Lease [Member]
Current assets:
Operating Lease, Right-of-Use Asset		331.0			0.0
Current liabilities:
Operating Lease, Liability, Current		78.1			0.0
Operating Lease, Liability, Noncurrent		251.9			0.0
Lease with Affiliate [Member]
Current assets:
Operating Lease, Right-of-Use Asset		666.2		$ 604.4	0.0
Current liabilities:
Operating Lease, Liability, Current		75.7			0.0
Operating Lease, Liability, Noncurrent		$ 590.4			$ 0.0

[1] Catalyst leases are valued using a market approach based upon commodity prices for similar instruments quoted in active markets and are categorized as a Level 2 measurement. The Company has elected the fair value option for accounting for its catalyst lease repurchase obligations as the Company’s liability is directly impacted by the change in fair value of the underlying catalyst.