DESCRIPTION OF THE BUSINESS AND BASIS OF PRESENTATION (Policies)	9 Months Ended
Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The unaudited condensed consolidated financial information furnished herein reflects all adjustments (consisting of normal recurring accruals) which are, in the opinion of management, considered necessary for a fair presentation of the financial position and the results of operations and cash flows of the Company for the periods presented. All intercompany accounts and transactions have been eliminated in consolidation. These unaudited Condensed Consolidated Financial Statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. These interim Condensed Consolidated Financial Statements should be read in conjunction with the PBF Holding Company LLC and PBF Finance Corporation financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2018. The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for the full year. In 2019, the Company has changed its presentation from thousands to millions, as applicable, and as a result, any necessary rounding adjustments have been made to prior year disclosed amounts.
New Accounting Pronouncements	Recently Adopted Accounting Guidance In February 2016, the Financial Accounting Standard Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-02, “Leases (Topic 842)” (Accounting Standards Codification “ASC” 842) to increase the transparency and comparability of leases. ASC 842 supersedes the lease accounting guidance in ASC 840 - “Leases” (“ASC 840”). ASC 842 requires lessees to recognize a lease liability and a corresponding lease asset for virtually all lease contracts. It also requires additional disclosures about leasing arrangements. The Company elected to utilize the “package” of three expedients, as defined in ASC 842, which retains the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. The Company also has elected to not evaluate land easements that existed as of, or expired before, adoption of the new standard. The Company’s Condensed Consolidated Financial Statements for the periods prior to the adoption of ASC 842 are not adjusted and are reported in accordance with the Company’s historical accounting policy. As of the date of implementation on January 1, 2019, the impact of the adoption of ASC 842 resulted in the recognition of a right of use asset and lease payable obligation on the Company’s Condensed Consolidated Balance Sheets of approximately $853.9 million, of which $604.4 million is attributable to leases with affiliates. As the right of use asset and the lease payable obligation were the same upon adoption of ASC 842, there was no cumulative effect on the Company’s retained earnings. See “Note 6 - Leases” for further details. In August 2017, the FASB issued ASU No. 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” (“ASU 2017-12”). The amendments in ASU 2017-12 more closely align the results of cash flow and fair value hedge accounting with risk management activities in the consolidated financial statements. The amendments expand the ability to hedge nonfinancial and financial risk components, reduce complexity in fair value hedges of interest rate risk, eliminate the requirement to separately measure and report hedge ineffectiveness, and eases certain hedge effectiveness assessment requirements. The guidance in ASU 2017-12 also provided transition relief to make it easier for entities to apply certain amendments to existing hedges (including fair value hedges) where the hedge documentation needs to be modified. The presentation and disclosure requirements of ASU 2017-12 were applied prospectively. The Company adopted the amendments in this ASU effective January 1, 2019, which did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures. In June 2018, the FASB issued ASU No. 2018-07, “Compensation - Stock Compensation (Topic 718): Targeted Improvements to Non-employee Share-Based Payment Accounting” (“ASU 2018-07”). ASU 2018-07 expands the scope of Topic 718, Compensation - Stock Compensation, to include share-based payment transactions for acquiring goods and services from non-employees. As a result, non-employee share-based transactions will be measured by estimating the fair value of the equity instruments at the grant date, taking into consideration the probability of satisfying performance conditions. In addition, ASU 2018-07 also clarifies that any share-based payment awards issued to customers should be evaluated under ASC 606, “Revenues from Contracts with Customers” (“ASC 606”). The Company adopted the amendments in this ASU effective January 1, 2019, which did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures. In August 2018, the FASB issued ASU 2018-15, “Intangibles-Goodwill and Other-Internal-Use Software” (Subtopic 350-40) (“ASU 2018-15”). This guidance addresses a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in such arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years, with early adoption permitted. This guidance should be applied on either a retrospective or prospective basis. The Company has elected to early adopt this guidance in the second quarter of 2019 on a prospective basis. The Company’s adoption of ASU 2018-15 did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures. Recently Issued Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20)”, to improve the effectiveness of benefit plan disclosures in the notes to financial statements by facilitating clear communication of the information required by GAAP that is most important to users of each entity’s financial statements. The amendments in this ASU modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. Additionally, the amendments in this ASU remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. The amendments in this ASU are effective for fiscal years ending after December 15, 2020, for public business entities and early adoption is permitted for all entities. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses” (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). This guidance amends the guidance on measuring credit losses on financial assets held at amortized cost. ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company does not expect that the adoption of this guidance will have a material impact on its financial statements and related disclosures.

Recently Adopted Accounting Guidance

In February 2016, the Financial Accounting Standard Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-02, “Leases (Topic 842)” (Accounting Standards Codification “ASC” 842) to increase the transparency and comparability of leases. ASC 842 supersedes the lease accounting guidance in ASC 840 - “Leases” (“ASC 840”). ASC 842 requires lessees to recognize a lease liability and a corresponding lease asset for virtually all lease contracts. It also requires additional disclosures about leasing arrangements. The Company elected to utilize the “package” of three expedients, as defined in ASC 842, which retains the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. The Company also has elected to not evaluate land easements that existed as of, or expired before, adoption of the new standard. The Company’s Condensed Consolidated Financial Statements for the periods prior to the adoption of ASC 842 are not adjusted and are reported in accordance with the Company’s historical accounting policy. As of the date of implementation on January 1, 2019, the impact of the adoption of ASC 842 resulted in the recognition of a right of use asset and lease payable obligation on the Company’s Condensed Consolidated Balance Sheets of approximately $853.9 million, of which $604.4 million is attributable to leases with affiliates. As the right of use asset and the lease payable obligation were the same upon adoption of ASC 842, there was no cumulative effect on the Company’s retained earnings. See “Note 6 - Leases” for further details.

In August 2017, the FASB issued ASU No. 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities” (“ASU 2017-12”). The amendments in ASU 2017-12 more closely align the results of cash flow and fair value hedge accounting with risk management activities in the consolidated financial statements. The amendments expand the ability to hedge nonfinancial and financial risk components, reduce complexity in fair value hedges of interest rate risk, eliminate the requirement to separately measure and report hedge ineffectiveness, and eases certain hedge effectiveness assessment requirements. The guidance in ASU 2017-12 also provided transition relief to make it easier for entities to apply certain amendments to existing hedges (including fair value hedges) where the hedge documentation needs to be modified. The presentation and disclosure requirements of ASU 2017-12 were applied prospectively. The Company adopted the amendments in this ASU effective January 1, 2019, which did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures.

In June 2018, the FASB issued ASU No. 2018-07, “Compensation - Stock Compensation (Topic 718): Targeted Improvements to Non-employee Share-Based Payment Accounting” (“ASU 2018-07”). ASU 2018-07 expands the scope of Topic 718, Compensation - Stock Compensation, to include share-based payment transactions for acquiring goods and services from non-employees. As a result, non-employee share-based transactions will be measured by estimating the fair value of the equity instruments at the grant date, taking into consideration the probability of satisfying performance conditions. In addition, ASU 2018-07 also clarifies that any share-based payment awards issued to customers should be evaluated under ASC 606, “Revenues from Contracts with Customers” (“ASC 606”). The Company adopted the amendments in this ASU effective January 1, 2019, which did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures.

In August 2018, the FASB issued ASU 2018-15, “Intangibles-Goodwill and Other-Internal-Use Software” (Subtopic 350-40) (“ASU 2018-15”). This guidance addresses a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. ASU 2018-15 aligns the requirements for capitalizing implementation costs incurred in such arrangements with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years, with early adoption permitted. This guidance should be applied on either a retrospective or prospective basis. The Company has elected to early adopt this guidance in the second quarter of 2019 on a prospective basis. The Company’s adoption of ASU 2018-15 did not have a material impact on its Condensed Consolidated Financial Statements and related disclosures.

Recently Issued Accounting Pronouncements

In August 2018, the FASB issued ASU No. 2018-14, “Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20)”, to improve the effectiveness of benefit plan disclosures in the notes to financial statements by facilitating clear communication of the information required by GAAP that is most important to users of each entity’s financial statements. The amendments in this ASU modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. Additionally, the amendments in this ASU remove disclosures that no longer are considered cost beneficial, clarify the specific requirements of disclosures, and add disclosure requirements identified as relevant. The amendments in this ASU are effective for fiscal years ending after December 15, 2020, for public business entities and early adoption is permitted for all entities.

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses” (Topic 326), Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). This guidance amends the guidance on measuring credit losses on financial assets held at amortized cost. ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company does not expect that the adoption of this guidance will have a material impact on its financial statements and related disclosures.