Property, Plant and Equipment (Components of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment
Property, plant and equipment, gross	$ 1,814	$ 1,702
Less accumulated depreciation	1,157	1,044
Total property, plant and equipment, net	657	658
Land, buildings and improvements
Property, Plant and Equipment
Property, plant and equipment, gross	369	339
Machinery and equipment
Property, Plant and Equipment
Property, plant and equipment, gross	941	861
Equipment held for lease or rental
Property, Plant and Equipment
Property, plant and equipment, gross	241	256
Furniture and fixtures
Property, Plant and Equipment
Property, plant and equipment, gross	124	118
Construction work in progress
Property, Plant and Equipment
Property, plant and equipment, gross	110	104
Other
Property, Plant and Equipment
Property, plant and equipment, gross	$ 29	$ 24