Maturities of Lease Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Leases [Abstract]
Operating Leases, Year Ending June 30, 2025 (excluding the six months ended December 31, 2024)	$ 2,726
Operating Leases, Year Ending June 30, 2026	4,920
Operating Leases, Year Ending June 30, 2027	4,063
Operating Leases, Year Ending June 30, 2028	3,025
Operating Leases, Year Ending June 30, 2029	2,203
Operating Leases, Thereafter	7,433
Operating Leases, Total lease payments	24,370
Operating Leases, Less imputed interest	(2,508)
Operating Leases	21,862	$ 19,077
Finance Leases, Year Ending June 30, 2025 (excluding the six months ended December 31, 2024)	1,979
Finance Leases, Year Ending June 30, 2026	4,149
Finance Leases, Year Ending June 30, 2027	4,180
Finance Leases, Year Ending June 30, 2028	4,175
Finance Leases, Year Ending June 30, 2029	3,528
Finance Leases, Thereafter	28,350
Finance Leases, Total lease payments	46,361
Finance Leases, Less imputed interest	(10,284)
Finance Leases	$ 36,077	$ 27,145