Supplemental Financial Information (Cash Equivalents) (Details) - Cash Equivalents - Fair Value, Inputs, Level 1 - USD ($) $ in Millions |
Jan. 30, 2022 |
Oct. 31, 2021 |
|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Time deposits | $ 3,315 | $ 4,668 |
| Money-market funds | $ 1,080 | $ 1,607 |