Property, Plant and Equipment (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment by major asset class consists of the following:

(Dollars in millions)	March 31, 2022		December 31, 2021
Land, buildings and improvements	$	317	$	312
Plant and machinery	192		191
Equipment and other	301		298
Total property, plant and equipment, at cost	810		801
Less accumulated depreciation	(443)		(437)
Total property, plant and equipment, net	$	367	$	364

Property, plant and equipment by major asset class consists of the following:

	December 31,
(Dollars in millions)	2021		2020
Land, buildings and improvements	$	312	$	294
Plant and machinery	191		186
Equipment and other	298		276
Total property, plant and equipment, at cost	801		756
Less accumulated depreciation	(437)		(401)
Total property, plant and equipment, net	$	364	$	355