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Leases (Tables)
 12 Months Ended
Dec. 31, 2024
Leases [Abstract]  
Schedule of Amount, Timing and Uncertainty of Cash Flows of Company's Operating Leases
The following table presents information about the amount, timing and uncertainty of cash flows arising from all of the Company’s operating leases as of December 31, 2024.
(Dollars in Millions)December 2024
Maturity of Lease LiabilitiesLease Payments
2025$76 
202662 
202751 
202842 
202937 
Thereafter1,086 
Total Undiscounted Operating Lease Payments$1,354 
Less: Imputed Interest(795)
Present Value of Operating Lease Liabilities$559 
Future payments due to Conrail under the shared asset area agreements are shown in the table below.
(Dollars in Millions)Conrail Shared
YearsAsset Agreement
2025$34 
202634 
202734 
202834 
202914 
Thereafter— 
Total$150 
Schedule of Balance Sheet Classification and Other Information of Company's Operating Leases
(Dollars in Millions)20242023
Balance Sheet Classification
Right of Use Asset$487 $498 
Current Lease Liabilities (Included in Other Current Liabilities)$73 $68 
Long-term Lease Liabilities486 491 
Total Operating Lease Liabilities$559 $559 
Other Information
Weighted-average Remaining Lease Term for Operating Leases30 years30 years
Weighted-average Discount Rate for Operating Leases5.1 %5.1 %
Schedule of Operating Lease Costs These amounts are shown in the table below.
 Years Ended
(Dollars in Millions)202420232022
Rent Expense on Operating Leases$117 $109 $109