Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 1,977	$ 2,504	$ 4,345
Restricted cash	211	2	0
Total cash, cash equivalents, and restricted cash	2,188	2,506	4,345
Supplemental disclosure of cash flow information
Cash paid for interest	0	42	0
Non-cash investing and financing activities
Conversion of redeemable convertible preferred stock to common stock upon initial public offering	0	0	2,646
Purchases of property and equipment not yet settled	34	23	17
Unrealized loss on marketable securities	(20)	(4)	0
Stock-based compensation included in capitalized software and website development costs	132	93	8
Holdback consideration for acquisitions	$ 8	$ 0	$ 3