Business Segments - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Cash and cash equivalents	$ 908	$ 801	$ 1,043
Asia Pacific
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 337	$ 278
Concentrations of cash and cash equivalents	37.00%	35.00%
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 214	$ 261
Concentrations of cash and cash equivalents	24.00%	33.00%
Americas
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 190	$ 134
Concentrations of cash and cash equivalents	21.00%	17.00%