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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Note 5. Property, Plant and Equipment
The following table displays the details of Property, plant and equipment, which is stated at cost:
(dollars in millions)
At December 31,Lives (years)20232022
Land-$751 $747 
Buildings and equipment
7 to 45
36,940 35,382 
Central office and other network equipment
3 to 15
170,161 162,001 
Antennas, cable, conduit, poles and towers
4 to 50
78,355 75,622 
Leasehold improvements
5 to 20
10,355 10,159 
Work in progress-12,092 12,889 
Furniture, vehicles and other
3 to 20
11,454 10,889 
320,108 307,689 
Less accumulated depreciation211,798 200,255 
Property, plant and equipment, net$108,310 $107,434