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Nature of Operations (Tables) | 12 Months Ended
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Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Segment Reporting Information, by Segment | This breakout of revenues and expenses is used by the CODM to monitor and assess the financial performance of our rail network by comparing actual results to prior years and plans.
Millions | 2024 | 2023 | 2022
Bulk | $ | 7,207 |  | $ | 7,358 |  | $ | 7,537 |
Industrial | 8,440 |  | 8,238 |  | 8,205 |
Premium | 7,164 |  | 6,975 |  | 7,417 |
Total freight revenues | $ | 22,811 |  | $ | 22,571 |  | $ | 23,159 |
Other subsidiary revenues | 788 |  | 872 |  | 884 |
Accessorial revenues | 554 |  | 584 |  | 779 |
Other | 97 |  | 92 |  | 53 |
Total operating revenues | $ | 24,250 |  | $ | 24,119 |  | $ | 24,875 |
Operating [a] | 6,795 |  | 6,729 |  | 6,212 |
Administrative [a] | 757 |  | 761 |  | 700 |
Locomotive fuel | 2,418 |  | 2,815 |  | 3,321 |
Other segment items [b] | 2,169 |  | 2,414 |  | 2,479 |
Depreciation | 2,398 |  | 2,318 |  | 2,246 |
Other income, net | (350) |  | (491) |  | (426) |
Interest expense | 1,269 |  | 1,340 |  | 1,271 |
Income tax expense | 2,047 |  | 1,854 |  | 2,074 |
Net income | $ | 6,747 |  | $ | 6,379 |  | $ | 6,998 |
[a] Operating and Administrative includes compensation and benefits, purchased services and materials, equipment and other rents, non-locomotive fuel, and other expenses. [b] Other segment items includes car hire and leases, casualty costs, state and local taxes, subsidiary expense, and other overhead expense.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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