Property, Plant and Equipment, Net

3 Months Ended

Mar. 31, 2022

Property, Plant and Equipment, Net.

Property, Plant and Equipment, Net

10.     Property, Plant and Equipment, Net

	March 31,		December 31,
($ in millions)	2022		2021
Land	$	184	$	167
Buildings		2,134		2,081
Machinery and equipment		7,016		6,876
Construction-in-progress		1,245		1,179
		10,579		10,303
Accumulated depreciation		(3,896)		(3,801)
	$	6,683	$	6,502

Depreciation expense amounted to $140 million and $123 million for the three months ended March 31, 2022 and 2021, respectively.