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Financial Instruments - Investments by Classification Type (Details) - USD ($) $ in Millions		Sep. 28, 2025	Dec. 31, 2024
Short-term investments
Equity securities with readily determinable fair values		$ 2,390	$ 7,848
Available-for-sale debt securities		10,123	10,881
Held-to-maturity debt securities		1,128	705
Total Short-term investments		13,641	19,434
Long-term investments
Equity securities with readily determinable fair values		1,176	1,246
Available-for-sale debt securities		1	0
Held-to-maturity debt securities		48	45
Private equity securities at cost	[1]	690	719
Equity-method investments		223	217
Total Long-term investments		2,137	2,228
Held-to-maturity cash equivalents		$ 235	$ 184
[1] Represent investments in the life sciences sector

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