Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock-based compensation:
Stock-based compensation	$ 34	$ 25	$ 61	$ 48
Cost of revenue
Stock-based compensation:
Stock-based compensation	0	0	1	1
Selling and Marketing
Stock-based compensation:
Stock-based compensation	6	4	11	8
Technology and Content
Stock-based compensation:
Stock-based compensation	13	10	25	20
General and Administrative
Stock-based compensation:
Stock-based compensation	$ 15	$ 11	$ 24	$ 19