Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 726	$ 533	$ 1,733	$ 1,506
Operating cash flows from finance leases	109	100	320	286
Financing cash flows from finance leases	233	168	655	457
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	1,421	1,106	4,151	3,362
Finance leases	$ 720	$ 836	$ 3,094	$ 2,664