v3.26.1
Segment Reporting - Schedule of Cost and Expense (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Railway operating revenues $ 2,998 $ 2,993
Railway operating expenses    
Compensation and benefits 740 739
Fuel 256 244
Depreciation 352 346
Merger-related expenses 52 0
Eastern Ohio incident 10  
Eastern Ohio incident   (185)
Total railway operating expenses 2,121 1,847
Income from railway operations 877 1,146
Other income – net 35 31
Interest expense on debt 197 199
Income before income taxes 715 978
Income taxes 168 228
Net income 547 750
Reportable Segment    
Segment Reporting Information [Line Items]    
Railway operating revenues 2,998 2,993
Railway operating expenses    
Compensation and benefits 740 739
Purchased services 418 401
Equipment rents 104 97
Fuel 256 244
Depreciation 352 346
Materials 94 100
Claims 53 66
Other 42 39
Merger-related expenses 52 0
Eastern Ohio incident 10  
Eastern Ohio incident   (185)
Total railway operating expenses 2,121 1,847
Income from railway operations 877 1,146
Other income – net 35 31
Interest expense on debt 197 199
Income before income taxes 715 978
Income taxes 168 228
Net income $ 547 $ 750