Business Segments - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Cash and cash equivalents	$ 1,539	$ 908	$ 801
Asia Pacific
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 387	$ 337
Concentrations of cash and cash equivalents	25.00%	37.00%
Europe, Middle East and Africa
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 387	$ 214
Concentrations of cash and cash equivalents	25.00%	24.00%
Americas
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 384	$ 190
Concentrations of cash and cash equivalents	25.00%	21.00%