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Cash, Cash Equivalents and Investments - Summary of Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Millions | Jul. 27, 2025 | Oct. 27, 2024 | Jul. 28, 2024
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Summary of Cash, Cash Equivalents and Investments |  |  |
Cash | $ 1,437 | $ 1,313 |
Total cash equivalents | 3,947 | 6,709 |
Total cash and cash equivalents | 5,384 | 8,022 | $ 8,288
Total equity investments, cost | 1,753 | 798 |
Total equity investments, gross unrealized gains | 536 | 243 |
Total equity investments, gross unrealized losses | 40 | 27 |
Total equity investments, estimated fair value | 2,249 | 1,014 |
Total short-term and long-term investments cost | 5,261 | 4,022 |
Total short-term and long-term investments, gross unrealized gains | 546 | 252 |
Total short-term and long-term investments ,gross unrealized losses | 44 | 38 |
Total short-term and long-term investments, estimated fair value | 5,763 | 4,236 |
Total cash, cash equivalents and investments, cost | 10,645 | 12,044 |
Total cash, cash equivalents and investments, gross unrealized gains | 546 | 252 |
Total cash, cash equivalents and investments, gross unrealized losses | 44 | 38 |
Total cash, cash equivalents and investments, estimated fair value | 11,147 | 12,258 |
Restricted cash equivalents included in deferred income taxes and other assets | 70 |  | $ 90
Total fixed income securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 3,508 | 3,224 |
Gross unrealized gains on fixed income securities | 10 | 9 |
Gross unrealized losses on fixed income securities | 4 | 11 |
Estimated fair value of fixed income securities | 3,514 | 3,222 |
Bank certificates of deposit and time deposits |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 6 | 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 | 6 | 13 |
U.S. Treasury and agency securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 1,578 | 1,306 |
Gross unrealized gains on fixed income securities | 1 | 0 |
Gross unrealized losses on fixed income securities | 0 | 2 |
Estimated fair value of fixed income securities | 1,579 | 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 | 465 | 441 |
Gross unrealized gains on fixed income securities | 3 | 2 |
Gross unrealized losses on fixed income securities | 1 | 2 |
Estimated fair value of fixed income securities | 467 | 441 |
Commercial paper, corporate bonds and medium-term notes |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 831 | 803 |
Gross unrealized gains on fixed income securities | 4 | 4 |
Gross unrealized losses on fixed income securities | 1 | 2 |
Estimated fair value of fixed income securities | 834 | 805 |
Asset-backed and mortgage-backed securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Cost of fixed income securities | 623 | 656 |
Gross unrealized gains on fixed income securities | 2 | 3 |
Gross unrealized losses on fixed income securities | 2 | 5 |
Estimated fair value of fixed income securities | 623 | 654 |
Publicly traded equity securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Equity investments cost | 1,438 | 543 |
Equity investments unrealized gains | 467 | 185 |
Equity investments unrealized losses | 2 | 5 |
Equity investments estimated fair value | 1,903 | 723 |
Equity investments in privately held companies |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Equity investments in privately held companies, cost | 315 | 255 |
Equity investments in privately held companies, gross unrealized gains | 69 | 58 |
Equity investments in privately held companies , gross unrealized losses | 38 | 22 |
Equity investments in privately held companies, estimated fair value | 346 | 291 |
Money market funds |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 924 | 3,421 |
Restricted cash equivalents included in deferred income taxes and other assets | 70 | 91 |
Bank certificates of deposit and time deposits |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 60 | 90 |
U.S. Treasury and agency securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 1,114 | 1,394 |
Municipal securities |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | 34 | 19 |
Commercial paper, corporate bonds and medium-term notes |  |  |
Summary of Cash, Cash Equivalents and Investments |  |  |
Total cash equivalents | $ 1,815 | $ 1,785 |

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