Accounting information and policies - Contribution of the Group's Venezuelan and Turkish operations (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure of geographical areas [line items] | |||
| Hyperinflation adjustments | $ 334 | $ 264 | $ 365 |
| Türkiye(1) | |||
| Disclosure of geographical areas [line items] | |||
| Movement in price index in hyperinflationary economy | 32.00% | 35.00% | 72.00% |
| Venezuela | |||
| Disclosure of geographical areas [line items] | |||
| Movement in price index in hyperinflationary economy | 574.00% | 171.00% | 77.00% |