Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 239.1	$ (1,857.5)	$ 388.2
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	444.3	523.8	404.4
Impairment expense	0.0	91.8	0.0
Stock-based compensation	30.3	29.3	30.5
Change in fair value of catalyst obligations	(8.5)	11.8	9.7
Deferred income taxes	(14.5)	7.3	(8.8)
Non-cash change in inventory repurchase obligations	(8.4)	(12.6)	25.4
Non-cash lower of cost or market inventory adjustment	(669.6)	268.0	(250.2)
Change in fair value of contingent consideration	29.4	(79.3)	0.0
(Gain) loss on extinguishment of debt	(79.9)	22.2	0.0
Pension and other post-retirement benefit costs	50.8	55.7	44.8
Income from equity method investee	0.0	0.0	(7.9)
Distributions from equity method investee	0.0	0.0	7.9
Gain on sale of assets	(0.2)	(477.8)	(29.9)
Changes in operating assets and liabilities:
Accounts receivable	(770.5)	325.1	(115.9)
Due to/from affiliates	9.3	6.7	12.6
Inventories	(149.3)	392.2	(8.0)
Prepaid and other current assets	(15.3)	(3.0)	4.4
Accounts payable	480.1	(200.6)	132.0
Accrued expenses	806.9	111.5	209.5
Deferred revenue	(4.8)	28.2	(0.2)
Other assets and liabilities	(76.9)	(62.8)	(58.9)
Net cash provided by (used in) operating activities	292.3	(820.0)	789.6
Cash flows from investing activities:
Expenditures for property, plant and equipment	(240.5)	(183.9)	(373.1)
Expenditures for deferred turnaround costs	(117.7)	(188.1)	(299.3)
Expenditures for other assets	(28.9)	(9.1)	(44.7)
Acquisition of Martinez refinery	0.0	(1,176.2)	0.0
Proceeds from sale of assets	0.0	543.1	36.3
Equity method investment - return of capital	0.0	0.0	0.6
Net cash used in investing activities	(387.1)	(1,014.2)	(680.2)
Cash flows from financing activities:
Contributions from PBF LLC	37.0	42.4	228.5
Proceeds from revolver borrowings	0.0	1,450.0	1,350.0
Repayments of revolver borrowings	0.0	(550.0)	(1,350.0)
Settlements of precious metal catalyst obligations	(31.7)	(8.8)	(6.5)
Proceeds from catalyst financing arrangements	0.0	51.9	0.0
Payments on financing leases	(17.8)	(12.4)	0.0
Deferred financing costs and other	0.5	(34.7)	(1.4)
Net cash (used in) provided by financing activities	(169.6)	2,641.2	92.0
Net change in cash and cash equivalents	(264.4)	807.0	201.4
Cash and cash equivalents, beginning of period	1,570.1	763.1	561.7
Cash and cash equivalents, end of period	1,305.7	1,570.1	763.1
Non-cash activities:
Accrued and unpaid capital expenditures	103.2	31.1	36.0
Assets acquired or remeasured under operating and financing leases	(106.6)	702.0	1,194.3
Fair value of the Martinez Contingent Consideration at acquisition	0.0	77.3	0.0
Distribution of assets to PBF Energy Company LLC	0.0	0.0	169.1
Cash paid during the year for:
Interest (net of capitalized interest of $8.9, $11.9 and $17.6 in 2021, 2020 and 2019, respectively)	265.4	162.9	107.0
Capitalized interest	8.9	11.9	17.6
Income taxes	1.0	1.0	1.2
Collins Pipeline Company And T&M Terminal Company [Member]
Cash flows from financing activities:
Payments of Capital Distribution	(0.7)	0.0	0.0
Members
Cash flows from financing activities:
Payments of Capital Distribution	(2.7)	(23.1)	(121.6)
2025 Senior Secured Notes
Cash flows from financing activities:
Proceeds from Issuance of Long-term Debt	0.0	1,250.6	0.0
2028 Senior Notes [Member]
Cash flows from financing activities:
Proceeds from Issuance of Long-term Debt	0.0	1,000.0	0.0
Repayments of Long-term Debt	(109.3)	0.0	0.0
2025 Senior Notes [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	(37.5)	0.0	0.0
2023 Senior Notes [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	0.0	(517.5)	0.0
Rail Term Loan [Member]
Cash flows from financing activities:
Repayments of Long-term Debt	$ (7.4)	$ (7.2)	$ (7.0)