Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 2,656	$ 1,977	$ 2,504
Restricted cash included in prepaid expenses and other current assets	105	0	0
Long-term restricted cash	11	211	2
Total cash, cash equivalents, and restricted cash	2,772	2,188	2,506
Supplemental disclosure of cash flow information
Cash paid for interest	0	0	42
Non-cash investing and financing activities
Purchases of property and equipment not yet settled	13	34	23
Stock-based compensation included in capitalized software and website development costs	$ 161	$ 132	$ 93

Future cash outflow to pay for purchases of fixed assets that have occurred.

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