Segment and Related Information - Revenue by Geographic Region (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 2,087	$ 1,846	$ 6,209	$ 5,575
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,260	1,076	3,761	3,384
European region
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	498	455	1,497	1,310
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	227	214	648	585
Rest of the world
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 102	$ 101	$ 303	$ 296