COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	Feb. 01, 2020	Jun. 30, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Environmental liability		$ 154.6	$ 155.6
Environmental liability, noncurrent		140.9	141.5
Martinez Acquistion
Loss Contingencies [Line Items]
Term of agreement	4 years
Contingent consideration	$ 77.3
Contingent consideration			147.3
Accrued expenses | Martinez Acquistion
Loss Contingencies [Line Items]
Contingent consideration		29.4	80.0
Environmental Issue | Torrance Refinery
Loss Contingencies [Line Items]
Environmental liability		$ 113.3	$ 117.0