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Cash, Cash Equivalents and Investments - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions | Oct. 26, 2025 | Oct. 27, 2024 | Oct. 29, 2023
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Summary of Cash, Cash Equivalents and Investments |  |  |
Cash | $ 1,419 | $ 1,313 |
Total cash equivalents | 5,822 | 6,709 |
Total cash and cash equivalents | 7,241 | 8,022 | $ 6,132
Total equity investments, cost | 1,630 | 798 |
Total equity investments, gross unrealized gains | 898 | 243 |
Total equity investments, gross unrealized losses | 48 | 27 |
Total equity investments, estimated fair value | 2,480 | 1,014 |
Total short-term and long-term investments cost | 4,793 | 4,022 |
Total short-term and long-term investments, gross unrealized gains | 916 | 252 |
Total short-term and long-term investments ,gross unrealized losses | 50 | 38 |
Total short-term and long-term investments, estimated fair value | 5,659 | 4,236 |
Total cash, cash equivalents and investments, cost | 12,034 | 12,044 |
Total cash, cash equivalents and investments, gross unrealized gains | 916 | 252 |
Total cash, cash equivalents and investments, gross unrealized losses | 50 | 38 |
Total cash, cash equivalents and investments, estimated fair value | 12,900 | 12,258 |
Restricted cash equivalents included in deferred income taxes and other assets | 71 | 91 | $ 101
Total fixed income securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 3,163 | 3,224 |
Gross unrealized gains on fixed income securities | 18 | 9 |
Gross unrealized losses on fixed income securities | 2 | 11 |
Estimated fair value of fixed income securities | 3,179 | 3,222 |
Bank certificates of deposit and time deposits |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 4 | 13 |
Gross unrealized gains on fixed income securities | 0 | 0 |
Gross unrealized losses on fixed income securities | 0 | 0 |
Estimated fair value of fixed income securities | 4 | 13 |
U.S. Treasury and agency securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 1,229 | 1,306 |
Gross unrealized gains on fixed income securities | 3 | 0 |
Gross unrealized losses on fixed income securities | 0 | 2 |
Estimated fair value of fixed income securities | 1,232 | 1,304 |
Non-U.S. government securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 5 | 5 |
Gross unrealized gains on fixed income securities | 0 | 0 |
Gross unrealized losses on fixed income securities | 0 | 0 |
Estimated fair value of fixed income securities | 5 | 5 |
Municipal securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 463 | 441 |
Gross unrealized gains on fixed income securities | 5 | 2 |
Gross unrealized losses on fixed income securities | 0 | 2 |
Estimated fair value of fixed income securities | 468 | 441 |
Commercial paper, corporate bonds and medium-term notes |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 848 | 803 |
Gross unrealized gains on fixed income securities | 6 | 4 |
Gross unrealized losses on fixed income securities | 0 | 2 |
Estimated fair value of fixed income securities | 854 | 805 |
Asset-backed and mortgage-backed securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 614 | 656 |
Gross unrealized gains on fixed income securities | 4 | 3 |
Gross unrealized losses on fixed income securities | 2 | 5 |
Estimated fair value of fixed income securities | 616 | 654 |
Publicly traded equity securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Equity investments cost | 1,288 | 543 |
Equity investments unrealized gains | 824 | 185 |
Equity investments unrealized losses | 2 | 5 |
Equity investments estimated fair value | 2,110 | 723 |
Equity investments in privately held companies |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Equity investments in privately held companies, cost | 342 | 255 |
Equity investments in privately held companies, gross unrealized gains | 74 | 58 |
Equity investments in privately held companies , gross unrealized losses | 46 | 22 |
Equity investments in privately held companies, estimated fair value | 370 | 291 |
Money market funds |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 2,193 | 3,421 |
Restricted cash equivalents included in deferred income taxes and other assets | 71 | 91 |
Bank certificates of deposit and time deposits |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 180 | 90 |
U.S. Treasury and agency securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 1,196 | 1,394 |
Municipal securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 5 | 19 |
Commercial paper, corporate bonds and medium-term notes |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | $ 2,248 | $ 1,785 |

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