Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 690	$ 726	$ 1,989	$ 1,733
Operating cash flows from finance leases	132	109	364	320
Financing cash flows from finance leases	272	233	790	655
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	663	1,421	2,377	4,151
Finance leases	$ 1,044	$ 720	$ 2,253	$ 3,094