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Property, Plant and Equipment
 12 Months Ended
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)20242023
(Dollars in millions)   
LandN/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 processN/A554 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.