COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	Feb. 01, 2020	Sep. 30, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Environmental liability		$ 152.4	$ 155.6
Environmental liability, noncurrent		138.6	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		94.7	80.0
Environmental Issue | Torrance Refinery
Loss Contingencies [Line Items]
Environmental liability		$ 110.9	$ 117.0