Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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No definition available.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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STOCK-BASED COMPENSATION (Weighted Average Assumptions) (Details) - PBF Energy [Member] - $ / shares	2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2020	Oct. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)			6 years 29 days	6 years 3 months	6 years 3 months
Expected volatility			69.10%	38.60%	35.80%
Dividend yield			1.41%	3.54%	3.49%
Risk-free rate of return			0.81%	2.16%	2.82%
Exercise price (in dollars per share)	$ 13.58		$ 13.58	$ 34.11	$ 35.25
Weighted average fair value per unit (in dollars per share)			$ 5.49	$ 9.43	$ 9.55
Vesting period	3 years	4 years
Performance share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)					2 years 2 months 1 day
Expected volatility					39.04%
Dividend yield					2.95%
Risk-free rate of return					2.89%
Maximum [Member] \| Performance share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)			3 years 1 month 20 days	2 years 10 months 17 days
Expected volatility			82.63%	41.70%
Dividend yield			4.28%	3.67%
Risk-free rate of return			1.34%	2.51%
Minimum [Member] \| Performance share units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)			2 years 10 months 20 days	2 years 2 months 1 day
Expected volatility			39.88%	37.19%
Dividend yield			0.00%	3.40%
Risk-free rate of return			0.26%	1.66%