Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($) $ in Millions |
Apr. 30, 2026 |
Jan. 31, 2026 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 2,547 | $ 2,495 |
| Less accumulated depreciation and amortization | (1,426) | (1,402) |
| Property and equipment, net | 1,121 | 1,093 |
| Computers, equipment, and software | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 1,271 | 1,285 |
| Buildings | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 698 | 690 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 385 | 334 |
| Furniture, fixtures, and transportation equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 119 | 112 |
| Land and land improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 74 | $ 74 |