Contingent Liabilities - Summary of Contingent Liabilities (Detail) - USD ($) |
Jun. 30, 2025 |
Jun. 30, 2024 |
|---|---|---|
| Disclosure of contingent liabilities [line items] | ||
| Contingent liabilities | $ 2,575,000,000 | $ 2,351,000,000 |
| Material claim | 0 | |
| Associates and joint ventures [member] | ||
| Disclosure of contingent liabilities [line items] | ||
| Contingent liabilities | 1,664,000,000 | 1,492,000,000 |
| Subsidiaries and joint operations [member] | ||
| Disclosure of contingent liabilities [line items] | ||
| Contingent liabilities | $ 911,000,000 | $ 859,000,000 |