XML 22 R1.htm IDEA: XBRL DOCUMENT v3.25.0.1
Cover - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2024
Jan. 31, 2025
Jun. 30, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-8022    
Entity Registrant Name CSX CORPORATION    
Entity Incorporation, State or Country Code VA    
Entity Tax Identification Number 62-1051971    
Entity Address, Address Line One 500 Water Street    
Entity Address, Address Line Two 15th Floor    
Entity Address, City or Town Jacksonville    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 32202    
City Area Code 904    
Local Phone Number 359-3200    
Title of 12(b) Security Common Stock, $1 Par Value    
Trading Symbol CSX    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] true    
Document Financial Statement Restatement Recovery Analysis [Flag] true    
Entity Shell Company false    
Entity Public Float     $ 65
Entity Common Stock, Shares Outstanding   1,894,616,582  
Documents Incorporated by Reference
Portions of the Registrant’s Definitive Proxy Statement (the “Proxy Statement”) to be filed no later than 120 days after the end of the fiscal year with respect to its 2025 annual meeting of shareholders.
   
Entity Central Index Key 0000277948    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false