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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Number of Locomotives and Payments under Long-term Maintenance Program
The following table summarizes CSXT’s payments, including prepayments, for the long-term maintenance and rebuild program which covers approximately 1,900 locomotives with payments based on active status during the period.
 Years Ended
(Dollars in Millions)202420232022
Amounts Paid (a)
$311 $236 $235 
(a) The 2023 and 2022 amounts have been updated to include $36 million and $67 million, respectively, of locomotive rebuild payments.
Schedule of Annual Payments under Long-term Maintenance Program Total annual payments under all of these purchase commitments are also estimated in the table below.
(Dollars in Millions)Locomotive Maintenance & Rebuild PaymentsOther
Commitments		Total
2025$359 $173 $532 
2026380 48 428 
2027506 38 544 
2028462 34 496 
2029219 14 233 
Thereafter962 51 1,013 
Total$2,888 $358 $3,246