RELATED PARTY TRANSACTIONS (Summary of Transactions with PBFX) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Related Party Transaction [Line Items] | |||||
| Accounts receivable | $ 1,792.2 | $ 1,792.2 | $ 1,120.1 | ||
| Accrued expenses | 3,209.3 | 3,209.3 | 2,614.2 | ||
| PBF Logistics LP | |||||
| Related Party Transaction [Line Items] | |||||
| Accounts receivable | 5.7 | 5.7 | 5.3 | ||
| Accrued expenses | 39.4 | 39.4 | $ 38.9 | ||
| PBF Logistics LP | Cost of Sales | |||||
| Related Party Transaction [Line Items] | |||||
| Total expenses under affiliate agreements | (92.9) | $ (88.3) | (181.6) | $ (173.5) | |
| PBF Logistics LP | Services agreement | General and Administrative Expense | |||||
| Related Party Transaction [Line Items] | |||||
| Total expenses under affiliate agreements | 2.1 | 2.1 | 4.3 | 4.3 | |
| PBF Logistics LP | Omnibus agreement | General and Administrative Expense | |||||
| Related Party Transaction [Line Items] | |||||
| Total expenses under affiliate agreements | $ 1.6 | $ 1.5 | $ 3.1 | $ 3.0 | |