Property, Plant and Equipment (Tables)

6 Months Ended

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

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(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.