Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 64.9	$ (456.8)	$ 50.8	$ (1,412.9)
Other comprehensive income (loss):
Unrealized gain (loss) on available for sale securities	0.0	0.1	(0.5)	0.8
Net gain on pension and other post-retirement benefits	0.2	0.2	0.6	0.6
Total other comprehensive income	0.2	0.3	0.1	1.4
Comprehensive income (loss)	65.1	(456.5)	50.9	(1,411.5)
Less: comprehensive income (loss) attributable to noncontrolling interests	(0.1)	(0.1)	2.3	(0.1)
Comprehensive income (loss) attributable to PBF Holding Company LLC	$ 65.2	$ (456.4)	$ 48.6	$ (1,411.4)