CONDENSED CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net revenues	$ 2,483	$ 2,638
Cost of net revenues	689	606
Gross profit	1,794	2,032
Operating expenses:
Sales and marketing	478	546
Product development	301	304
General and administrative	226	246
Provision for transaction losses	96	88
Amortization of acquired intangible assets	1	7
Total operating expenses	1,102	1,191
Income from operations	692	841
Gain (loss) on equity investments and warrant, net	(2,291)	(36)
Interest and other, net	(50)	(81)
Income (loss) from continuing operations before income taxes	(1,649)	724
Income tax benefit (provision)	310	(156)
Income (loss) from continuing operations	(1,339)	568
Income (loss) from discontinued operations, net of income taxes	(2)	73
Net income (loss)	$ (1,341)	$ 641
Income (loss) per share - basic:
Continuing operations (in usd per share)	$ (2.28)	$ 0.83
Discontinued operations (in usd per share)	0	0.11
Net income (loss) per share - basic (in usd per share)	(2.28)	0.94
Income (loss) per share - diluted:
Continuing operations (in usd per share)	(2.28)	0.82
Discontinued operations (in usd per share)	0	0.10
Net income (loss) per share - diluted (in usd per share)	$ (2.28)	$ 0.92
Weighted-average shares:
Basic (in shares)	587	681
Diluted (in shares)	587	693