Leases - Summary of Future Aggregate Undiscounted Non-cancellable Lease Payments (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Lease liabilities included in the consolidated statement of financial position | ||
| Current | $ 60 | $ 59 |
| Non-current | $ 181 | $ 190 |