Consolidated Statements of Comprehensive Income - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Apr. 30, 2021 |
Apr. 30, 2020 |
Apr. 30, 2019 |
|
| Statement of Comprehensive Income [Abstract] | |||
| Net income | $ 903 | $ 827 | $ 835 |
| Other comprehensive income (loss), net of tax: | |||
| Currency translation adjustments | 123 | (94) | (27) |
| Cash flow hedge adjustments | (76) | 30 | 48 |
| Postretirement benefits adjustments | 78 | (77) | (6) |
| Net other comprehensive income (loss) | 125 | (141) | 15 |
| Comprehensive income | $ 1,028 | $ 686 | $ 850 |