Leases - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Disclosure of leases [Line Items] | ||
| Commitments for leases not yet commenced | $ 506 | $ 844 |
| Bottom of range [member] | Buildings [member] | ||
| Disclosure of leases [Line Items] | ||
| Lease term | 10 years | |
| Bottom of range [member] | Ships [member] | ||
| Disclosure of leases [Line Items] | ||
| Lease term | 4 years | |
| Top of range [member] | Ships [member] | ||
| Disclosure of leases [Line Items] | ||
| Lease term | 10 years |