Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 1,819.1	$ 2,811.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	418.8	360.0
Stock-based compensation	27.7	20.7
Change in fair value of catalyst obligations	(1.1)	0.3
Deferred income taxes	(5.9)	0.7
Non-cash change in inventory repurchase obligations	25.1	(21.1)
Change in fair value of contingent consideration, net	32.4	130.7
Loss on extinguishment of debt	5.7	66.1
Pension and other post-retirement benefit costs	35.9	35.7
(Gain) loss on sale of assets	(1.3)	0.3
Changes in operating assets and liabilities:
Accounts receivable	(102.4)	(353.1)
Due to/from affiliates	1.9	(21.2)
Inventories	(331.9)	(184.4)
Prepaid and other current assets	(128.7)	(268.6)
Accounts payable	411.9	(14.1)
Accrued expenses	(1,035.7)	938.2
Deferred revenue	41.6	31.6
Other assets and liabilities	(60.8)	(1.8)
Net cash provided by operating activities	1,152.3	3,531.3
Cash flows from investing activities:
Expenditures for property, plant and equipment	(569.5)	(386.9)
Expenditures for deferred turnaround costs	(322.9)	(240.3)
Expenditures for other assets	(39.5)	(51.9)
Proceeds from sale of assets	4.4	0.0
Net cash used in investing activities	(927.5)	(679.1)
Cash flows from financing activities:
Contributions from PBF LLC	1,109.6	50.0
Payment of contingent consideration	(80.1)	0.0
Proceeds from revolver borrowings	0.0	400.0
Repayments of revolver borrowings	0.0	(1,300.0)
Settlement of precious metal catalyst obligations	(3.1)	(37.3)
Payments on financing leases	(11.1)	(8.5)
Proceeds from insurance premium financing	8.7	10.5
Deferred financing costs and other, net	(35.7)	(31.2)
Net cash used in financing activities	(501.8)	(2,306.4)
Net change in cash and cash equivalents	(277.0)	545.8
Cash and cash equivalents, beginning of period	2,153.9	1,305.7
Cash and cash equivalents, end of period	1,876.9	1,851.5
Non-cash activities:
Non-Cash Distribution of Assets	844.8	0.0
Accrued and unpaid capital expenditures	64.5	106.3
Assets acquired or remeasured under operating and financing leases	231.2	36.7
Cash paid during the period for:
Interest (net of capitalized interest of $32.9 million and $15.8 million in 2023 and 2022, respectively)	98.0	183.1
Income taxes	1.5	1.1
2028 Senior Notes
Cash flows from financing activities:
Repayments of Long-term Debt	0.0	(21.1)
2025 Senior Notes
Cash flows from financing activities:
Repayments of Long-term Debt	(666.2)	(4.8)
2030 Senior Notes
Cash flows from financing activities:
Proceeds from Issuance of Long-term Debt	496.6	0.0
2025 Senior Secured Notes
Cash flows from financing activities:
Repayments of Long-term Debt	0.0	(1,307.4)
Members
Cash flows from financing activities:
Distributions to members	$ (1,320.5)	$ (56.6)