Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Summary of Plant, Property 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)	2019		2018
Land	-	$	594	$	807
Buildings and equipment	7 to 45	31,216		30,468
Central office and other network equipment	3 to 50	152,733		147,250
Cable, poles and conduit	7 to 50	52,658		49,859
Leasehold improvements	5 to 20	9,072		8,580
Work in progress	-	9,234		6,362
Furniture, vehicles and other	3 to 20	10,227		9,509
		265,734		252,835
Less accumulated depreciation		173,819		163,549
Property, plant and equipment, net		$	91,915	$	89,286