Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment

Property, Plant and Equipment

($ in millions)
At December 31:		2015		2014
Land and land improvements	$	558	$	667
Buildings and building improvements		6,552		9,524
Plant, laboratory and office equipment		21,116		27,388
Plant and other property—gross		28,226		37,578
Less: Accumulated depreciation		18,051		27,500
Plant and other property—net		10,176		10,078
Rental machines		1,115		1,456
Less: Accumulated depreciation		565		763
Rental machines—net		551		693
Total—net	$	10,727	$	10,771