CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net revenues	$ 10,420	$ 8,894	$ 7,429
Cost of net revenues	2,650	1,797	1,585
Gross profit	7,770	7,097	5,844
Operating expenses:
Sales and marketing	2,170	2,091	1,866
Product development	1,325	1,028	930
General and administrative	921	985	988
Provision for transaction losses	422	330	262
Amortization of acquired intangible assets	9	27	28
Total operating expenses	4,847	4,461	4,074
Income from operations	2,923	2,636	1,770
Gain (loss) on equity investments and warrant, net	(2,365)	1,007	133
Interest and other, net	(160)	(298)	(251)
Income from continuing operations before income taxes	398	3,345	1,652
Income tax provision	(146)	(858)	(219)
Income from continuing operations	252	2,487	1,433
Income from discontinued operations, net of income taxes	13,356	3,180	353
Net income	$ 13,608	$ 5,667	$ 1,786
Income per share - basic:
Continuing operations (in usd per share)	$ 0.39	$ 3.50	$ 1.69
Discontinued operations (in usd per share)	20.48	4.48	0.41
Net income per share - basic (in usd per share)	20.87	7.98	2.10
Income per share - diluted:
Continuing operations (in usd per share)	0.38	3.46	1.68
Discontinued operations (in usd per share)	20.16	4.43	0.41
Net income per share - diluted (in usd per share)	$ 20.54	$ 7.89	$ 2.09
Weighted average shares:
Basic (in shares)	652	710	849
Diluted (in shares)	663	718	856