Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ 3,708.9	$ 239.1	$ (1,857.5)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	495.6	444.3	523.8
Impairment expense	0.0	0.0	91.8
Stock-based compensation	44.1	30.3	29.3
Change in fair value of catalyst obligations	2.0	(8.5)	11.8
Deferred income taxes	(3.2)	(14.5)	7.3
Non-cash change in inventory repurchase obligations	(5.4)	(8.4)	(12.6)
Non-cash lower of cost or market inventory adjustment	0.0	(669.6)	268.0
Change in fair value of contingent consideration, net	48.1	29.4	(79.3)
Loss (gain) on extinguishment of debt	66.1	(79.9)	22.2
Pension and other post-retirement benefit costs	47.6	50.8	55.7
Loss (gain) on sale of assets	0.9	(0.2)	(477.8)
Changes in operating assets and liabilities:
Accounts receivable	(179.6)	(770.5)	325.1
Due to/from affiliates	(25.7)	9.3	6.7
Inventories	(258.5)	(149.3)	392.2
Prepaid and other current assets	(5.0)	(15.3)	(3.0)
Accounts payable	(97.7)	480.1	(200.6)
Accrued expenses	860.8	806.9	111.5
Deferred revenue	(2.8)	(4.8)	28.2
Other assets and liabilities	0.0	(76.9)	(62.8)
Net cash provided by (used in) operating activities	4,696.2	292.3	(820.0)
Cash flows from investing activities:
Expenditures for property, plant and equipment	(625.4)	(240.5)	(183.9)
Expenditures for deferred turnaround costs	(311.6)	(117.7)	(188.1)
Expenditures for other assets	(66.0)	(28.9)	(9.1)
Acquisition of Martinez refinery	0.0	0.0	(1,176.2)
Proceeds from sale of assets	0.0	0.0	543.1
Net cash used in investing activities	(1,003.0)	(387.1)	(1,014.2)
Cash flows from financing activities:
Contributions from PBF LLC	56.4	37.0	42.4
Proceeds from revolver borrowings	400.0	0.0	1,450.0
Repayments of revolver borrowings	(1,300.0)	0.0	(550.0)
Settlements of precious metal catalyst obligations	(56.2)	(31.7)	(8.8)
Proceeds from catalyst financing arrangements	0.0	0.0	51.9
Payments on financing leases	(11.3)	(17.8)	(12.4)
Proceeds from insurance premium financing	2.1	0.0	0.0
Deferred financing costs and other	(31.3)	0.5	(34.7)
Net cash (used in) provided by financing activities	(2,845.0)	(169.6)	2,641.2
Net change in cash and cash equivalents	848.2	(264.4)	807.0
Cash and cash equivalents, beginning of period	1,305.7	1,570.1	763.1
Cash and cash equivalents, end of period	2,153.9	1,305.7	1,570.1
Non-cash activities:
Accrued and unpaid capital expenditures	165.2	103.2	31.1
Assets acquired or remeasured under operating and financing leases	82.8	(106.6)	702.0
Fair value of the Martinez Contingent Consideration at acquisition	0.0	0.0	77.3
Cash paid during the year for:
Interest (net of capitalized interest of $24.8, $8.9 and $11.9 in 2022, 2021 and 2020, respectively)	211.5	265.4	162.9
Capitalized interest	24.8	8.9	11.9
Income taxes	0.8	1.0	1.0
Collins Pipeline Company And T&M Terminal Company
Cash flows from financing activities:
Payments of capital distribution	0.0	(0.7)	0.0
Members
Cash flows from financing activities:
Payments of capital distribution	(571.4)	(2.7)	(23.1)
2025 Senior Secured Notes
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss (gain) on extinguishment of debt	(69.9)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	0.0	0.0	1,250.6
Repayments of long-term debt	(1,307.4)	0.0	0.0
2028 Senior Notes
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss (gain) on extinguishment of debt	(3.6)	(62.4)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	0.0	0.0	1,000.0
Repayments of long-term debt	(21.1)	(109.3)	0.0
2025 Senior Notes
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss (gain) on extinguishment of debt	(0.2)	(17.5)
Cash flows from financing activities:
Repayments of long-term debt	(4.8)	(37.5)	0.0
2023 Senior Notes
Cash flows from financing activities:
Repayments of long-term debt	0.0	0.0	(517.5)
Rail Term Loan
Cash flows from financing activities:
Repayments of long-term debt	$ 0.0	$ (7.4)	$ (7.2)