Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member's Equity [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2017	$ 3,184.0	$ 2,359.7	$ (26.9)	$ 840.4	$ 10.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Member distributions	(52.6)	0.0	0.0	(52.6)	0.0
Capital contributions from PBF LLC	287.0	287.0	0.0	0.0	0.0
Distribution of assets to PBF LLC	(13.7)	(13.7)	0.0	0.0	0.0
Stock based compensation	19.7	19.7	0.0	0.0	0.0
Comprehensive income (loss)	106.0	0.0	3.0	102.9	0.1
Other	(0.6)	(0.2)	0.0	(0.4)	0.0
Ending balance at Dec. 31, 2018	3,529.8	2,652.5	(23.9)	890.3	10.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Member distributions	(121.6)	0.0	0.0	(121.6)	0.0
Capital contributions from PBF LLC	228.5	228.5	0.0	0.0	0.0
Distribution of assets to PBF LLC	(0.3)	(0.3)	0.0	0.0	0.0
Distribution of TVPC investment	(168.8)	(168.8)	0.0	0.0	0.0
Stock based compensation	27.2	27.2	0.0	0.0	0.0
Comprehensive income (loss)	402.4	0.0	14.2	388.2	0.0
Ending balance at Dec. 31, 2019	3,897.2	2,739.1	(9.7)	1,156.9	10.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Member distributions	(23.1)	0.0	0.0	(23.1)	0.0
Capital contributions from PBF LLC	42.4	42.4	0.0	0.0	0.0
Stock based compensation	28.2	28.2	0.0	0.0	0.0
Comprehensive income (loss)	(1,853.9)	0.0	3.6	(1,857.2)	(0.3)
Ending balance at Dec. 31, 2020	$ 2,090.8	$ 2,809.7	$ (6.1)	$ (723.4)	$ 10.6