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DEFERRED CHARGES AND OTHER ASSETS, NET (Tables)
 12 Months Ended
Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Deferred Charges and Other Assets, Net
Deferred charges and other assets, net consisted of the following:  
(in millions)December 31, 2022December 31, 2021
Deferred turnaround costs, net$619.5 $537.0 
Catalyst, net (a)199.7 166.8 
Environmental credits41.4 41.3 
Linefill27.4 27.4 
Pension plan assets18.6 20.7 
Other47.4 20.6 
Total deferred charges and other assets, net$954.0 $813.8 
(a) Catalyst, net includes $117.0 million and $113.0 million of indefinite-lived precious metal catalysts (both owned or financed as part of existing catalyst financing arrangements) as of December 31, 2022 and December 31, 2021, respectively.
Schedule of Intangible Assets, Net
Intangible assets, net, included in “Other” above, primarily consists of permits and emission credits. Our net balance as of December 31, 2022 and December 31, 2021 is shown below:
(in millions)December 31, 2022December 31, 2021
Intangible assets - gross$4.0 $4.0 
Accumulated amortization(3.5)(3.5)
Intangible assets - net $0.5 $0.5