Investments - Schedule of Equity Investments (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Equity investments with readily determinable fair values	$ 4,474	$ 2,692
Equity investments without readily determinable fair values	118	86	$ 85
Total equity investments	5,004	3,377
Adevinta
Schedule of Investments [Line Items]
Equity investments with readily determinable fair values	4,474	2,692	$ 5,391
Short-term investments:
Schedule of Investments [Line Items]
Equity investments with readily determinable fair values	0	104
Long-term investments:
Schedule of Investments [Line Items]
Equity investments under the fair value option	382	461
Equity investments under the equity method of accounting	55	34
Equity investments without readily determinable fair values	$ 93	$ 86