Maturities of Lease Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023
Leases [Abstract]
Operating Leases, Year Ending June 30, 2024 (excluding the three months ended September 30, 2023)	$ 2,287
Operating Leases, Year Ending June 30, 2025	2,834
Operating Leases, Year Ending June 30, 2026	2,365
Operating Leases, Year Ending June 30, 2027	1,961
Operating Leases, Year Ending June 30, 2028	1,767
Operating Leases, Thereafter	6,803
Operating Leases, Total lease payments	18,017
Operating Leases, Less imputed interest	(1,992)
Operating Leases	16,025	$ 15,137
Finance Leases, Year Ending June 30, 2024 (excluding the three months ended September 30, 2023)	1,378
Finance Leases, Year Ending June 30, 2025	2,196
Finance Leases, Year Ending June 30, 2026	1,883
Finance Leases, Year Ending June 30, 2027	1,890
Finance Leases, Year Ending June 30, 2028	1,900
Finance Leases, Thereafter	12,934
Finance Leases, Total lease payments	22,181
Finance Leases, Less imputed interest	(4,027)
Finance Leases	$ 18,154	$ 17,067