Taxation recognised in other comprehensive income (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure Of Exceptional Tax Expense Income [Line Items] | |||
| Tax on post-employment benefit plans | $ (14) | $ (7) | $ (14) |
| Tax relating to items that will not be recycled subsequently to the income statement | (14) | (7) | (14) |
| Tax on exchange differences – group | 5 | (10) | (11) |
| Income Tax Charge (Credit) Relating To Tax Rate Change | (38) | 0 | 0 |
| Tax on effective portion of changes in fair value of cash flow hedges | (2) | 15 | (16) |
| Tax on hyperinflation adjustments | 85 | 98 | 138 |
| Tax relating to items that may be recycled subsequently to the income statement | 50 | 103 | 111 |
| Taxation recognised in other comprehensive income | $ 36 | $ 96 | $ 97 |