Business Segments - Revenue and Long-Lived Assets by Geographic Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Geographic Segments
Total revenue	$ 3,188	$ 2,902	$ 2,512
Property and equipment, net	286	236
U.S.
Geographic Segments
Total revenue	2,087	1,948	1,734
Property and equipment, net	238	196
Other
Geographic Segments
Total revenue	1,101	954	$ 778
Property and equipment, net	$ 48	$ 40