Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue (Note 3)	[1]	$ 371	$ 262
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization as shown separately below)		29	22
Selling and marketing (1)		219	141
Technology and content (1)		68	54
General and administrative		48	40
Depreciation and amortization		21	25
Total costs and expenses		385	282
Operating income (loss)		(14)	(20)
Other income (expense):
Interest expense		(11)	(12)
Interest income		11	1
Other income (expense), net		(1)	(2)
Total other income (expense), net		(1)	(13)
Income (loss) before income taxes		(15)	(33)
(Provision) benefit for income taxes (Note 8)		(58)	(1)
Net income (loss)		$ (73)	$ (34)
Earnings (loss) per share attributable to common stockholders (Note 12):
Basic		$ (0.52)	$ (0.24)
Diluted		$ (0.52)	$ (0.24)
Weighted average common shares outstanding (Note 12):
Basic		141,451	139,092
Diluted		141,451	139,092

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