Property, Plant and Equipment, Net

6 Months Ended

Jun. 30, 2020

Property, Plant and Equipment, Net.

Property, Plant and Equipment, Net

10.     Property, Plant and Equipment, Net

	June 30,		December 31,
($ in millions)	2020		2019
Land	$	153	$	153
Buildings		1,466		1,433
Machinery and equipment		5,696		5,513
Construction-in-progress		626		434
		7,941		7,533
Accumulated depreciation		(3,279)		(3,063)
	$	4,662	$	4,470

Depreciation expense amounted to $126 million and $250 million for the three and six months ended June 30, 2020, respectively, and $123 million and $245 million for the three and six months ended June 30, 2019, respectively.