DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019 USD ($) segment	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Description of Business [Line Items]
Number of reportable segments | segment	1
Operating Lease, Right-of-Use Asset	$ 933.7	$ 853.9
Operating Lease, Liability	$ 919.0	689.2
PBF Energy [Member] | Class A Common Stock [Member]
Description of Business [Line Items]
Percentage of ownership in PBF LLC	99.00%
Lease with Affiliate [Member]
Description of Business [Line Items]
Operating Lease, Right-of-Use Asset	$ 683.0	604.4	$ 0.0
Operating Lease, Liability		$ 604.4