| Property, Plant and Equipment |
Property, plant and equipment (including equipment under finance leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: | | | | | | | | | | | | | | | | | | | December 31, | | Estimated Useful Lives | | | 2025 | | 2024 | | | Customer premise equipment | $ | 2,575,136 | | | $ | 2,404,889 | | | 3 to 5 years | | Headends and related equipment | 2,530,890 | | | 2,475,499 | | | 5 to 25 years | | Infrastructure | 9,854,837 | | | 9,298,328 | | | 5 to 25 years | | Equipment and software | 1,791,700 | | | 1,607,236 | | | 3 to 10 years | | Construction in progress (including materials and supplies) | 310,533 | | | 328,033 | | | | | Furniture and fixtures | 84,586 | | | 82,150 | | | 5 to 8 years | | Transportation equipment | 180,389 | | | 139,627 | | | 5 to 10 years | | Buildings and building improvements | 602,027 | | | 592,421 | | | 7 to 40 years | | Leasehold improvements | 206,608 | | | 198,449 | | | Term of lease | | Land | 50,643 | | | 50,014 | | | | | | 18,187,349 | | | 17,176,646 | | | | | Less accumulated depreciation and amortization | (9,835,958) | | | (8,762,014) | | | | | | $ | 8,351,391 | | | $ | 8,414,632 | | | |
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