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Deferred Charges and Other Assets
 12 Months Ended
Dec. 31, 2024
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
DEFERRED CHARGES AND OTHER ASSETS
7.    DEFERRED CHARGES AND OTHER ASSETS

“Deferred charges and other assets, net” consisted of the following (in millions):
December 31,
20242023
Deferred turnaround and catalyst costs, net$2,689 $2,382 
Operating lease ROU assets, net (see Note 5)
1,098 1,136 
Investments in nonconsolidated joint ventures695 713 
Purchased compliance credits488 612 
Goodwill260 260 
Intangible assets, net151 183 
Income taxes receivable317 56 
Other1,394 1,284 
Deferred charges and other assets, net$7,092 $6,626 
Amortization expense for deferred turnaround and catalyst costs and intangible assets was $852 million, $821 million, and $745 million for the years ended December 31, 2024, 2023, and 2022, respectively.

The entire balance of goodwill is related to our Refining segment. See Note 17 for information on our reportable segments.