Cash, Cash Equivalents and Investments - Gain (Loss) on Equity Investments (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Apr. 26, 2026 |
Apr. 27, 2025 |
Apr. 26, 2026 |
Apr. 27, 2025 |
|
| Publicly traded equity securities | ||||
| Unrealized gain | $ 673 | $ 110 | $ 1,157 | $ 113 |
| Unrealized loss | 0 | (28) | (16) | (139) |
| Realized gain on sales and dividends | 1 | 22 | 5 | 25 |
| Realized loss on sales or impairment | (13) | 0 | (15) | 0 |
| Equity investments in privately held companies | ||||
| Unrealized gain | 17 | 0 | 35 | 7 |
| Unrealized loss | (5) | (2) | (7) | (7) |
| Realized gain on sales and dividends | 3 | 1 | 7 | 7 |
| Realized loss on sales or impairment | (6) | (5) | (26) | (5) |
| Total gain (loss) on equity investments, net | $ 670 | $ 98 | $ 1,140 | $ 1 |