Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net income (loss)	$ (578.7)	$ 101.1
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	164.6	137.9
Stock-based compensation	11.4	12.4
Deferred income taxes	0.0	(0.6)
Change in fair value of contingent consideration, net	0.0	(3.3)
Pension and other post-retirement benefit costs	13.1	13.0
Loss on sale of assets	0.0	0.5
Changes in operating assets and liabilities:
Accounts receivable	63.9	200.6
Due to/from affiliates	(45.7)	(25.7)
Inventories	(295.5)	291.9
Prepaid and other current assets	(67.2)	(56.0)
Accounts payable	134.4	(27.2)
Accrued expenses	5.9	(639.3)
Deferred revenue	19.9	10.8
Other assets and liabilities	(16.1)	(7.4)
Net cash (used in) provided by operating activities	(590.0)	8.7
Cash flows from investing activities:
Expenditures for property, plant, and equipment	(108.6)	(138.5)
Expenditures for deferred turnaround costs	(92.7)	(140.6)
Expenditures for other assets	(14.6)	(4.5)
Net cash used in investing activities	(215.9)	(283.6)
Cash flows from financing activities:
Contributions from PBF LLC	55.0	75.0
Distributions to members	(168.7)	(210.9)
Proceeds from 2030 9.875% Senior Notes	788.5	0.0
Proceeds from revolver borrowings	1,150.0	0.0
Repayments of revolver borrowings	(1,150.0)	0.0
Payments on financing leases	(3.0)	(3.0)
Proceeds from insurance premium financing	100.7	78.2
Payments of insurance premium financing	(26.6)	0.0
Deferred financing costs and other, net	(12.0)	(0.1)
Net cash provided by (used in) financing activities	733.9	(60.8)
Net change in cash and cash equivalents	(72.0)	(335.7)
Cash and cash equivalents, beginning of period	515.2	1,760.8
Cash and cash equivalents, end of period	443.2	1,425.1
Non-cash activities:
Distribution of assets to PBF Energy Company LLC	0.0	(8.8)
Accrued and unpaid capital expenditures	97.1	157.7
Assets acquired or remeasured under operating and financing leases	65.7	169.6
Cash paid during the period for:
Interest (net of capitalized interest of $5.6 million and $5.2 million in 2025 and 2024, respectively)	48.8	46.4
Income taxes	$ 0.0	$ 0.1