Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 3,664	$ 2,344
Restricted cash included in prepaid expenses and other current assets	221	80
Long-term restricted cash	13	11
Total cash, cash equivalents, and restricted cash	3,898	2,435
Non-cash investing and financing activities
Purchases of property and equipment not yet settled	29	18
Stock-based compensation included in capitalized software and website development costs	$ 121	$ 119