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Other Liabilities
 12 Months Ended
Dec. 31, 2024
Other Liabilities Disclosure [Abstract]  
Other Liabilities Other Liabilities
 December 31,
 20242023
 ($ in millions)
Long-term advances from Conrail (Note 7)
$534 $534 
Net pension obligations (Note 13)252 279 
Casualty and other claims (Note 18)229 221 
Non-current operating lease liability (Note 11)191 287 
Net other postretirement benefit obligations (Note 13)133 172 
Non-current Eastern Ohio incident liability (Note 18)103 118 
Deferred compensation90 80 
Other228 148 
Total$1,760 $1,839