Financial Instruments - Investments by Classification Type (Details) - USD ($) $ in Millions		Apr. 03, 2022	Dec. 31, 2021
Short-term investments
Equity securities with readily determinable fair values	[1]	$ 2,759	$ 5,365
Available-for-sale debt securities		17,337	22,014
Held-to-maturity debt securities		1,331	1,746
Short-term investments		21,427	29,125
Long-term investments
Equity securities with readily determinable fair values		3,486	3,876
Available-for-sale debt securities		569	521
Held-to-maturity debt securities		41	34
Private equity securities at cost	[2]	647	623
Total Long-term investments		4,742	5,054
Equity-method investments		15,995	16,472
Total long-term investments and equity-method investments		20,737	21,526
Held-to-maturity cash equivalents		$ 458	$ 268

[1] As of April 3, 2022 and December 31, 2021, includes money market funds primarily invested in U.S. Treasury and government debt.

[2] Represent investments in the life sciences sector