Maturities of Lease Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Jun. 30, 2023
Leases [Abstract]
Operating Leases, Year Ending June 30, 2024 (excluding the nine months ended March 31, 2024)	$ 956
Operating Leases, Year Ending June 30, 2025	3,566
Operating Leases, Year Ending June 30, 2026	3,076
Operating Leases, Year Ending June 30, 2027	2,608
Operating Leases, Year Ending June 30, 2028	2,100
Operating Leases, Thereafter	7,812
Operating Leases, Total lease payments	20,118
Operating Leases, Less imputed interest	(2,236)
Operating Leases	17,882	$ 15,137
Finance Leases, Year Ending June 30, 2024 (excluding the nine months ended March 31, 2024)	560
Finance Leases, Year Ending June 30, 2025	2,694
Finance Leases, Year Ending June 30, 2026	2,398
Finance Leases, Year Ending June 30, 2027	2,409
Finance Leases, Year Ending June 30, 2028	2,409
Finance Leases, Thereafter	18,058
Finance Leases, Total lease payments	28,528
Finance Leases, Less imputed interest	(5,623)
Finance Leases	$ 22,905	$ 17,067