Rental Equipment, net - Narrative (Details) - USD ($) $ in Millions |
Jul. 31, 2026 |
Apr. 30, 2026 |
|---|---|---|
| Property, Plant, and Equipment [Abstract] | ||
| Amount due, unpaid, purchases of rental equipment | $ 607 | $ 387 |
| Accounts receivable, unpaid, sales of rental equipment | $ 127 | $ 122 |