Investments, Components of Equity Investments (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 27, 2025 |
Dec. 28, 2024 |
|
| Investments [Abstract] | ||
| Marketable equity securities | $ 484 | $ 848 |
| Non-marketable equity securities | 8,028 | 4,535 |
| Equity Investments | $ 8,512 | $ 5,383 |
| Marketable equity securities threshold percentage of shares owned resulting in trading volume restrictions | 1.00% |