Commitments - Additional Information (Details) $ in Millions	6 Months Ended
	Nov. 30, 2024 USD ($)
Other Aircraft Commitments Disclosure [Abstract]
Deposit and progress payments	$ 462
Lessee Disclosure [Abstract]
Additional leases not yet commenced, undiscounted future payments	$ 900
Minimum [Member]
Lessee Disclosure [Abstract]
Operating lease commencement date	2025
Maximum [Member]
Lessee Disclosure [Abstract]
Operating lease commencement date	2027