Commitments - Additional Information (Details) $ in Millions	9 Months Ended
	Feb. 29, 2024 USD ($)
Other Aircraft Commitments Disclosure [Abstract]
Deposit and progress payments	$ 648
Lessee Disclosure [Abstract]
Additional leases not yet commenced, undiscounted future payments	$ 1,800
Minimum [Member]
Lessee Disclosure [Abstract]
Operating lease commencement date	2024
Maximum [Member]
Lessee Disclosure [Abstract]
Operating lease commencement date	2027