Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2025

Property, Plant and Equipment [Abstract]

Schedule of Net 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	$	629	630
Fiber, conduit and other outside plant (1)	15-45 years	16,231		17,348
Central office and other network electronics(2)	3-10 years	16,238		16,616
Support assets(3)	3-30 years	6,907		6,804
Construction in progress(4)	N/A	1,818		2,144
Gross property, plant and equipment		41,823		43,542
Accumulated depreciation		(23,158)		(23,121)
Net property, plant and equipment		$	18,665	20,421

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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, data centers, 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.