Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue (Note 3)	[1]	$ 395	$ 371
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization as shown separately below)		35	29
Selling and marketing		221	219
Technology and content		76	68
General and administrative		56	48
Depreciation and amortization		22	21
Total costs and expenses		410	385
Operating income (loss)		(15)	(14)
Other income (expense):
Interest expense		(11)	(11)
Interest income		13	11
Other income (expense), net		(3)	(1)
Total other income (expense), net		(1)	(1)
Income (loss) before income taxes		(16)	(15)
(Provision) benefit for income taxes (Note 8)		(43)	(58)
Net income (loss)		$ (59)	$ (73)
Earnings (loss) per share attributable to common stockholders (Note 12):
Basic		$ (0.43)	$ (0.52)
Diluted		$ (0.43)	$ (0.52)
Weighted average common shares outstanding (Note 12):
Basic		138,438	141,451
Diluted		138,438	141,451

[1] Our revenue is recognized primarily at a point in time for all reportable segments.