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v3.25.3

Operating Assets and Facilities | 9 Months Ended
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Sep. 30, 2025
Property, Plant and Equipment [Abstract] |
Operating Assets and Facilities | Operating Assets and Facilities The following table shows the components of our operating assets and facilities (in millions):
| September 30 2025 |  | December 31 2024
Railcars and locomotives | $ | 13,413.0 |  |  | $ | 12,702.9 |
Aircraft spare engines | 1,177.5 |  |  | 1,030.4 |
Tank containers | 278.2 |  |  | 241.4 |
Buildings, leasehold improvements, and other equipment | 288.0 |  |  | 265.3 |
Other | 107.7 |  |  | 90.6 |
| $ | 15,264.4 |  |  | $ | 14,330.6 |
Less: allowance for depreciation | (4,184.7) |  |  | (3,880.9) |
Net operating assets and facilities | $ | 11,079.7 |  |  | $ | 10,449.7 |
Total depreciation expense was $114.3 million and $334.6 million for the three and nine months ended September 30, 2025 and $108.0 million and $311.5 million for the three and nine months ended September 30, 2024.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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