Segment Information Selected Statement of Income Narrative (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022		Jun. 30, 2021		Jun. 30, 2022		Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 2,052		$ 1,948		$ 4,038		$ 3,819
International | Operating Segments
Segment Reporting Information [Line Items]
Revenue	943	[1]	924	[1]	1,891	[2]	1,846	[2]
International | Operating Segments | Euro Member Countries, Euro
Segment Reporting Information [Line Items]
Revenue	$ 204		$ 209		$ 407		$ 401

[1] Revenue denominated in euros was $204 million and $209 million for the three months ended June 30, 2022 and 2021, respectively.

[2] Revenue denominated in euros was $407 million and $401 million for the six months ended June 30, 2022 and 2021, respectively.