v3.26.3
Revenues - Schedule of Revenues Disaggregated by Lines of Business (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Revenue $ 4,017 $ 3,587 $ 11,434 $ 10,584
Total Merchandise        
Disaggregation of Revenue [Line Items]        
Revenue 2,453 2,208 7,087 6,617
Chemicals        
Disaggregation of Revenue [Line Items]        
Revenue 790 697 2,286 2,096
Agricultural and Food Products        
Disaggregation of Revenue [Line Items]        
Revenue 430 382 1,283 1,208
Automotive        
Disaggregation of Revenue [Line Items]        
Revenue 325 306 932 897
Forest Products        
Disaggregation of Revenue [Line Items]        
Revenue 277 247 772 746
Metals and Equipment        
Disaggregation of Revenue [Line Items]        
Revenue 267 224 743 657
Minerals        
Disaggregation of Revenue [Line Items]        
Revenue 246 226 680 625
Fertilizers        
Disaggregation of Revenue [Line Items]        
Revenue 118 126 391 388
Intermodal        
Disaggregation of Revenue [Line Items]        
Revenue 634 527 1,772 1,511
Coal        
Disaggregation of Revenue [Line Items]        
Revenue 537 490 1,515 1,428
Trucking        
Disaggregation of Revenue [Line Items]        
Revenue 227 207 655 620
Other        
Disaggregation of Revenue [Line Items]        
Revenue $ 166 $ 155 $ 405 $ 408