Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,857.5)	$ 388.2	$ 103.0
Other comprehensive income (loss):
Unrealized (loss) gain on available for sale securities	(0.1)	0.4	(0.1)
Net gain on pension and other post-retirement benefits	3.7	13.8	3.1
Total other comprehensive income	3.6	14.2	3.0
Comprehensive income (loss)	(1,853.9)	402.4	106.0
Less: comprehensive income (loss) attributable to noncontrolling interests	(0.3)	0.0	0.1
Comprehensive income (loss) attributable to PBF Holding Company LLC	$ (1,853.6)	$ 402.4	$ 105.9