Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 610	$ 546
Less accumulated depreciation	(351)	(297)
Property, plant and equipment, net	259	249
Depreciation expense	72	78	$ 79
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	63	57
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7	7
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	232	204
Furniture and office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	20	18
Software and computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	168	161
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	84	75
Projects in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 36	$ 24