Maturities of Lease Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025
Leases [Abstract]
Operating Leases, Year Ending June 30, 2026 (excluding the three months ended September 30, 2025)	$ 4,627
Operating Leases, Year Ending June 30, 2027	5,506
Operating Leases, Year Ending June 30, 2028	3,770
Operating Leases, Year Ending June 30, 2029	2,641
Operating Leases, Year Ending June 30, 2030	2,162
Operating Leases, Thereafter	6,586
Operating Leases, Total lease payments	25,292
Operating Leases, Less imputed interest	(2,559)
Operating Leases	22,733	$ 22,861
Finance Leases, Year Ending June 30, 2026 (excluding the three months ended September 30, 2025)	4,218
Finance Leases, Year Ending June 30, 2027	5,862
Finance Leases, Year Ending June 30, 2028	5,909
Finance Leases, Year Ending June 30, 2029	5,259
Finance Leases, Year Ending June 30, 2030	5,136
Finance Leases, Thereafter	46,450
Finance Leases, Total lease payments	72,834
Finance Leases, Less imputed interest	(18,400)
Finance Leases	$ 54,434	$ 46,172