Leases - Future Lease Payments for Operating and Finance Leases (Details) - USD ($) $ in Millions	Feb. 29, 2024	Aug. 31, 2023
Finance lease
2024 (Remaining period)	$ 63
2025	122
2026	119
2027	116
2028	95
2029	85
Later	881
Total undiscounted minimum lease payments	1,481
Less: Present value discount	477
Lease liability	1,004	$ 976
Operating lease
2024 (Remaining period)	1,836
2025	3,635
2026	3,564
2027	3,476
2028	3,342
2029	3,100
Later	12,441
Total undiscounted minimum lease payments	31,394
Less: Present value discount	7,242
Lease liability	$ 24,151	$ 24,472