Supplemental Cash Flow Information Related to Leases (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 962	$ 803	$ 2,169	$ 1,597
Operating cash flows from finance leases	319	168	594	317
Financing cash flows from finance leases	480	288	1,282	573
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	3,098	847	4,991	2,651
Finance leases	$ 6,435	$ 1,796	$ 10,767	$ 3,500