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Investments (Tables) | 9 Months Ended
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Sep. 27, 2025
Investments, Debt and Equity Securities [Abstract] |
Investments Classified by Contractual Maturity Date [Table Text Block] | The fair values of marketable debt investments, by contractual maturity, as of September 27, 2025, were as follows:
(In Millions) |  | Fair Value
Due in 1 year or less |  | $ | 7,452 |
Due in 1 – 2 years |  | 7,233 |
Due in 2 – 5 years |  | 6,926 |
Due after 5 years |  | 188 |
Instruments not due at a single maturity date 1 |  | 4,099 |
Total |  | $ | 25,898 |
1 "Instruments not due at a single maturity date" is comprised of money market fund deposits, which are classified as either short-term investments or cash and cash equivalents.
Investment [Table Text Block] |
(In Millions) |  | Sep 27, 2025 |  | Dec 28, 2024
Marketable equity investments 1 |  | $ | 572 |  |  | $ | 848 |
Non-marketable equity investments |  | 8,095 |  |  | 4,535 |
Total |  | $ | 8,667 |  |  | $ | 5,383 |
1 Most of our marketable equity investments are subject to trading-volume or market-based restrictions, which limit the number of shares we may sell in a specified period of time, impacting our ability to liquidate these investments. Certain of the trading volume restrictions generally apply for as long as we own more than 1% of the outstanding shares. Market-based restrictions result from the rules of the respective exchange.
Gain (Loss) on Securities [Table Text Block] | The components of gains (losses) on equity investments, net for each period were as follows:
|  | Three Months Ended |  | Nine Months Ended
(In Millions) |  | Sep 27, 2025 |  | Sep 28, 2024 |  | Sep 27, 2025 |  | Sep 28, 2024
Unrealized gains (losses) on marketable equity investments |  | $ | 116 |  |  | $ | (198) |  |  | $ | (234) |  |  | $ | (168) |
Unrealized gains (losses) on non-marketable equity investments 1 |  | 17 |  |  | — |  |  | 490 |  |  | 48 |
Impairment charges on non-marketable equity investments |  | (76) |  |  | (110) |  |  | (232) |  |  | (269) |
Unrealized gains (losses) on equity investments, net |  | 57 |  |  | (308) |  |  | 24 |  |  | (389) |
Realized gains (losses) on sales of equity investments, net |  | 164 |  |  | 149 |  |  | 587 |  |  | 315 |
Gains (losses) on equity investments, net |  | $ | 221 |  |  | $ | (159) |  |  | $ | 611 |  |  | $ | (74) |
1 Unrealized gains (losses) on non-marketable investments includes observable price adjustments and our share of equity method investee gains (losses) and certain distributions.

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- Definition Tabular disclosure of realized and unrealized gain (loss) on investment in security. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(9)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B + Details
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