| USD ($) $ in Millions, shares in Millions | LTM | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Operating revenues: | ||||||||||||||||||
Total operating revenues | $ 25,410 | $ 24,510 | $ 24,250 | $ 24,119 | ||||||||||||||
Freight revenues | - | - | - | - | ||||||||||||||
Other revenues | - | - | - | - | ||||||||||||||
Total operating revenues | - | - | - | - | ||||||||||||||
Operating expenses: | ||||||||||||||||||
Compensation and benefits | 4,903 | 4,897 | 4,899 | 4,818 | ||||||||||||||
Purchased services and materials | 2,735 | 2,626 | 2,520 | 2,616 | ||||||||||||||
Depreciation | 2,513 | 2,465 | 2,398 | 2,318 | ||||||||||||||
Fuel | 2,792 | 2,390 | 2,474 | 2,891 | ||||||||||||||
Equipment and other rents | 874 | 912 | 920 | 947 | ||||||||||||||
Other | 1,422 | 1,374 | 1,326 | 1,447 | ||||||||||||||
Total operating expenses | 15,239 | 14,664 | 14,537 | 15,037 | ||||||||||||||
Operating income | 10,171 | 9,846 | 9,713 | 9,082 | ||||||||||||||
Other income, net (Note 6) | 624 | 629 | 350 | 491 | ||||||||||||||
Interest expense | (1,285) | (1,309) | (1,269) | (1,340) | ||||||||||||||
Income before income taxes | 9,510 | 9,166 | 8,794 | 8,233 | ||||||||||||||
Income tax expense (Note 7) | 2,180 | 2,028 | 2,047 | 1,854 | ||||||||||||||
Net income | $ 7,330 | $ 7,138 | $ 6,747 | $ 6,379 | ||||||||||||||
Share and Per Share (Note 8): | ||||||||||||||||||
Earnings per share - basic (in dollars per share) | $ 12.37 | $ 12 | $ 11.1 | $ 10.47 | ||||||||||||||
Earnings per share - diluted (in dollars per share) | 12.35 | 11.98 | 11.09 | 10.45 | ||||||||||||||
Weighted average number of shares - basic (in shares) | 593.2 | 595 | 607.6 | 609.2 | ||||||||||||||
Weighted average number of shares - diluted (in shares) | 593.8 | 595.9 | 608.6 | 610.2 | ||||||||||||||
Dividends declared per share | - | - | - | - |