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Property, Plant and Equipment (Tables) | 6 Months Ended
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Jun. 30, 2025
Property, Plant and Equipment [Abstract] |
Components of Property, Plant and Equipment | Net property, plant and equipment is composed of the following:
| Depreciable Lives |  | June 30, 2025 |  | December 31, 2024
|  |  | (Dollars in millions)
Land | N/A |  | $ | 329 |  |  | 329 |
Fiber, conduit and other outside plant(1) | 15-45 years |  | 7,228 |  |  | 8,246 |
Central office and other network electronics(2) | 7-10 years |  | 5,312 |  |  | 5,792 |
Support assets(3) | 3-30 years |  | 2,905 |  |  | 2,878 |
Construction in progress(4) | N/A |  | 299 |  |  | 530 |
Gross property, plant and equipment |  |  | 16,073 |  |  | 17,775 |
Accumulated depreciation |  |  | (8,580) |  |  | (8,910) |
Net property, plant and equipment |  |  | $ | 7,493 |  |  | 8,865 |
_______________________________________________________________________________ (1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles, and other supporting structures. (2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics, and electronics providing service to customers. (3)Support assets consist of buildings, computers, and other administrative and support equipment. (4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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