CONDENSED CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net revenues	$ 2,572	$ 2,540	$ 5,128	$ 5,050
Cost of net revenues	735	718	1,435	1,418
Gross profit	1,837	1,822	3,693	3,632
Operating expenses:
Sales and marketing	577	566	1,118	1,077
Product development	379	392	730	744
General and administrative	241	251	479	548
Provision for transaction losses	86	90	177	174
Amortization of acquired intangible assets	5	5	9	13
Total operating expenses	1,288	1,304	2,513	2,556
Income from operations	549	518	1,180	1,076
Loss on equity investments and warrant, net	(222)	(214)	(319)	(16)
Interest expense	(65)	(65)	(131)	(133)
Interest income and other, net	66	46	134	88
Income from continuing operations before income taxes	328	285	864	1,015
Income tax provision	(102)	(113)	(199)	(274)
Income from continuing operations	226	172	665	741
Loss from discontinued operations, net of income taxes	(2)	(1)	(3)	(3)
Net income	$ 224	$ 171	$ 662	$ 738
Income per share - basic:
Continuing operations (in usd per share)	$ 0.45	$ 0.32	$ 1.31	$ 1.38
Discontinued operations (in usd per share)	0	0	(0.01)	(0.01)
Net income per share - basic (in usd per share)	0.45	0.32	1.30	1.37
Income per share - diluted:
Continuing operations (in usd per share)	0.45	0.32	1.30	1.37
Discontinued operations (in usd per share)	0	0	(0.01)	(0.01)
Net income per share - diluted (in usd per share)	$ 0.45	$ 0.32	$ 1.29	$ 1.36
Weighted-average shares:
Basic (in shares)	503	534	509	536
Diluted (in shares)	507	537	513	539