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Investments - Gains (Losses) on Equity Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 27, 2025 | Sep. 28, 2024 | Sep. 27, 2025 | Sep. 28, 2024
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Unrealized gains (losses) on marketable equity investments | $ 116 | $ (198) | $ (234) | $ (168)
Unrealized gains (losses) on non-marketable equity investments | 17 | 0 | 490 | 48
Impairment charges | (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)

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