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Financial Instruments - Investments by Classification Type (Details) - USD ($) $ in Millions | Oct. 02, 2022 | Dec. 31, 2021
--- | --- | ---
Short-term investments |  |  |
Equity securities with readily determinable fair values | [1] | $ 12,154 | $ 5,365
Available-for-sale debt securities |  | 20,176 | 22,014
Held-to-maturity debt securities |  | 2,495 | 1,746
Short-term investments |  | 34,825 | 29,125
Long-term investments |  |  |
Equity securities with readily determinable fair values |  | 2,972 | 3,876
Available-for-sale debt securities |  | 358 | 521
Held-to-maturity debt securities |  | 36 | 34
Private equity securities at cost | [2] | 696 | 623
Total Long-term investments |  | 4,062 | 5,054
Equity-method investments |  | 9,826 | 16,472
Total long-term investments and equity-method investments |  | 13,888 | 21,526
Held-to-maturity cash equivalents |  | $ 969 | $ 268
[1] | Includes money market funds primarily invested in U.S. Treasury and government debt.
[2] | Represent investments in the life sciences sector

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