Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 312.1	$ 32.4
Other comprehensive income:
Net gain on pension and other post-retirement benefits	0.2	0.3
Total other comprehensive income	0.2	0.3
Comprehensive income	312.3	32.7
Less: comprehensive income attributable to noncontrolling interests	0.0	0.0
Comprehensive income attributable to PBF Holding Company LLC	$ 312.3	$ 32.7