Plant, Property and Equipment, Net (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Plant, Property and Equipment, Net
Land and improvements	$ 60	$ 59
Buildings and improvements	700	642
Machinery and equipment	1,897	1,809
Equipment held for lease or rental	149	132
Furniture, fixtures and office equipment	238	231
Construction work in progress	132	160
Other	49	29
Plant, property and equipment, gross	3,225	3,062
Less - accumulated depreciation	(2,011)	(1,857)
Plant, property and equipment, net	$ 1,214	$ 1,205