Segment and Geographic Information - Geographic Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 8,297	$ 7,442	$ 6,699
Long-lived Assets	$ 5,323	$ 5,429
Geographic concentration \| Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	100.00%	100.00%	100.00%
Geographic concentration \| Long-lived Assets
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	100.00%	100.00%
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 5,012	$ 4,504	$ 3,976
Long-lived Assets	$ 4,733	$ 4,787
U.S. \| Geographic concentration \| Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	60.00%	61.00%	59.00%
U.S. \| Geographic concentration \| Long-lived Assets
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	89.00%	88.00%
European region
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 1,995	$ 1,769	$ 1,659
Long-lived Assets	$ 463	$ 496
European region \| Geographic concentration \| Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	24.00%	24.00%	25.00%
European region \| Geographic concentration \| Long-lived Assets
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	9.00%	9.00%
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 874	$ 782	$ 710
Long-lived Assets	$ 85	$ 102
Asia \| Geographic concentration \| Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	11.00%	10.00%	11.00%
Asia \| Geographic concentration \| Long-lived Assets
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	2.00%	2.00%
Rest of the world
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 416	$ 387	$ 354
Long-lived Assets	$ 42	$ 44
Rest of the world \| Geographic concentration \| Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	5.00%	5.00%	5.00%
Rest of the world \| Geographic concentration \| Long-lived Assets
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	0.00%	1.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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