INCOME TAXES Income by Jurisdiction (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax [Line Items]
Operating Loss Carryforwards	$ 551.5
Income before income taxes	479.5	$ 208.8	$ 799.0
PBF Energy [Member]
Income Tax [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Domestic	450.0	134.3	749.7
Income (Loss) from Continuing Operations before Income Taxes, Foreign	(26.3)	27.5	(18.5)
Income before income taxes	$ 423.7	$ 161.8	$ 731.2

[Line Items] for Income Tax [Table]

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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