Commitments - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Disclosure of Commitments [Abstract] | |||
| Capital expenditure on intangibles and property, plant and equipment | $ 481 | $ 550 | $ 783 |
| Minimum lease rentals payables for short term leases and leases of low-value assets | 13 | 19 | 23 |
| Total future cash outflow for leases that had not yet commenced and not recognised as lease liabilities | $ 12 | $ 1 | $ 3 |