DERIVATIVES (Gain (Loss) Recognized in Income) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Cost of Revenue | Cost of Revenue | Cost of Revenue |
| Designated as Hedging Instrument [Member] | Inventory Intermediation Agreement Obligation [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain or (Loss) Recognized in Income on Derivatives | $ 0.0 | $ 21.0 | $ 5.4 |
| Designated as Hedging Instrument [Member] | Intermediates and Refined Products Inventory [Member] | Fair Value Hedging [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain or (Loss) Recognized in Income on Derivatives | 0.0 | (21.0) | (5.4) |
| Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | |||
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Gain or (Loss) Recognized in Income on Derivatives | $ 12.3 | $ 38.1 | $ (31.5) |