Short-term Borrowings and Long-term Debt (Schedule of Long-term Debt Instruments) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 30, 2025 |
Apr. 30, 2024 |
|
| Long-term debt due within one year | ||
| Balances as of February 1, 2025 | $ 2,598 | |
| Proceeds from issuance of long-term debt | 0 | |
| Reclassifications of long-term debt | 1,486 | |
| Currency and other adjustments | 1 | |
| Balances as of April 30, 2025 | 4,085 | $ 1,865 |
| Long-term debt | ||
| Balances as of February 1, 2025 | 33,401 | |
| Proceeds from issuance of long-term debt | 3,983 | |
| Reclassifications of long-term debt | (1,486) | |
| Currency and other adjustments | 622 | |
| Balances as of April 30, 2025 | 36,520 | 35,928 |
| Total | ||
| Balances as of February 1, 2025 | 35,999 | |
| Proceeds from issuance of long-term debt | 3,983 | $ 0 |
| Reclassifications of long-term debt | 0 | |
| Currency and other adjustments | 623 | |
| Balances as of April 30, 2025 | $ 40,605 | |