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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2022
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | Note 9 Property, Plant and Equipment TDS’ Property, plant and equipment in service and under construction, and related accumulated depreciation and amortization, as of December 31, 2022 and 2021, were as follows:
December 31, | Useful Lives (Years) |  | 2022 |  | 2021
(Dollars in millions) |  |  |  |  |
Land | N/A |  | $ | 63 |  |  | $ | 62 |
Buildings | 5-40 |  | 532 |  |  | 541 |
Leasehold and land improvements | 1-30 |  | 1,538 |  |  | 1,476 |
Cable and wire | 15-40 |  | 2,609 |  |  | 2,403 |
Network and switching equipment | 3-10 |  | 2,706 |  |  | 2,671 |
Cell site equipment | 7-25 |  | 4,248 |  |  | 4,150 |
Office furniture and equipment | 3-10 |  | 296 |  |  | 346 |
Other operating assets and equipment | 1-12 |  | 200 |  |  | 176 |
System development | 1-7 |  | 2,070 |  |  | 1,864 |
Work in process | N/A |  | 709 |  |  | 576 |
Total property, plant and equipment, gross |  |  | 14,971 |  |  | 14,265 |
Accumulated depreciation and amortization |  |  | (10,211) |  |  | (9,904) |
Total property, plant and equipment, net |  |  | $ | 4,760 |  |  | $ | 4,361 |
Depreciation and amortization expense totaled $882 million, $851 million and $862 million in 2022, 2021 and 2020, respectively. In 2022, 2021 and 2020, (Gain) loss on asset disposals, net included charges of $27 million, $26 million and $27 million, respectively, related to disposals of assets from service in the normal course of business.

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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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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