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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Note 10 Property, Plant and Equipment TDS’ Property, plant and equipment in service and under construction, and related accumulated depreciation and amortization, as of December 31, 2024 and 2023, were as follows:
December 31, | Useful Lives (Years) |  | 2024 |  | 2023
(Dollars in millions) |  |  |  |  |
Land | N/A |  | $ | 65 |  |  | $ | 67 |
Buildings | 15-40 |  | 420 |  |  | 542 |
Leasehold and land improvements | 1-30 |  | 1,651 |  |  | 1,598 |
Cable and wire | 15-40 |  | 3,191 |  |  | 2,928 |
Network and switching equipment | 1-10 |  | 2,241 |  |  | 2,717 |
Cell site equipment | 7-30 |  | 3,492 |  |  | 4,381 |
Office furniture and equipment | 3-10 |  | 242 |  |  | 272 |
Other operating assets and equipment | 1-12 |  | 240 |  |  | 240 |
System development | 1-7 |  | 2,267 |  |  | 2,214 |
Work in process | N/A |  | 554 |  |  | 653 |
Total property, plant and equipment, gross |  |  | 14,363 |  |  | 15,612 |
Accumulated depreciation and amortization |  |  | (9,369) |  |  | (10,550) |
Total property, plant and equipment, net |  |  | $ | 4,994 |  |  | $ | 5,062 |
Depreciation and amortization expense totaled $891 million, $865 million and $882 million in 2024, 2023 and 2022, respectively.

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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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