Financial Instruments - Investments - Short-term, Long-term and Equity Method Investments (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021
Short-term investments
Equity securities with readily determinable fair values	[1]	$ 1,588	$ 5,365
Available-for-sale debt securities		18,743	22,014
Held-to-maturity debt securities		1,985	1,746
Total Short-term investments		22,316	29,125
Long-term investments
Equity securities with readily determinable fair values	[2]	2,836	3,876
Available-for-sale debt securities		352	521
Held-to-maturity debt securities		48	34
Private equity securities at cost	[2]	800	623
Long-term investments		4,036	5,054
Equity-method investments		11,033	16,472
Total long-term investments and equity-method investments		15,069	21,526
Held-to-maturity cash equivalents		$ 679	$ 268

[1] Includes money market funds primarily invested in U.S. Treasury and government debt.

[2] Represent investments in the life sciences sector.