Income Taxes - Narrative (Details) - USD ($) $ in Millions |
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2024 |
|---|---|---|---|
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |||
| Unrecognized tax benefits, accrued interest and penalties | $ 1 | $ 1 | $ 1 |
| Unremitted earnings of overseas subsidiaries | 2,167 | ||
| Domestic Tax Jurisdiction | |||
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |||
| Operating loss carryforwards | 9 | ||
| State and Local Jurisdiction | |||
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |||
| Operating loss carryforwards | 297 | ||
| Operating loss carryforward, subject to expiration | 128 | ||
| United Kingdom | |||
| Income Tax Paid, by Individual Jurisdiction [Line Items] | |||
| Operating loss carryforwards | $ 32 |