Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue (Note 3)	[1]	$ 497	$ 494	$ 892	$ 865
Costs and expenses:
Cost of revenue (1) (exclusive of depreciation and amortization as shown separately below)		46	41	81	70
Selling and marketing		263	270	484	488
Technology and content		75	71	151	139
General and administrative		56	47	112	96
Depreciation and amortization		21	21	42	42
Total costs and expenses		461	450	870	835
Operating income (loss)		36	44	22	30
Other income (expense):
Interest expense		(11)	(11)	(22)	(22)
Interest income		13	12	25	22
Other income (expense), net		0	(1)	(3)	(1)
Total other income (expense), net		2	0	0	(1)
Income (loss) before income taxes		38	44	22	29
(Provision) benefit for income taxes (Note 8)		(14)	(20)	(57)	(78)
Net income (loss)	[2]	$ 24	$ 24	$ (35)	$ (49)
Earnings (loss) per share attributable to common stockholders (Note 12):
Basic		$ 0.17	$ 0.17	$ (0.25)	$ (0.35)
Diluted		$ 0.17	$ 0.17	$ (0.25)	$ (0.35)
Weighted average common shares outstanding (Note 12):
Basic		139,234	139,881	138,836	140,666
Diluted		145,218	145,115	138,836	140,666

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

[2] Interest expense, net of taxes, related to the 2026 Senior Notes which was included in the Diluted EPS calculation for both the three months ended June 30, 2024 and 2023 was not material