Accounting for Leases as a Lessee - Future Minimum Lease Commitments (Details) - USD ($) $ in Millions	Oct. 31, 2023	Oct. 31, 2022
Operating Leases
2024	$ 234
2025	215
2026	191
2027	176
2028	151
Thereafter	365
Total future lease payments	1,332
Less: imputed interest	(172)
Total operating lease liabilities	1,160	$ 1,019
Finance Leases
2024	7
2025	7
2026	7
2027	7
2028	8
Thereafter	12
Total future lease payments	48
Less: imputed interest	(5)
Total finance lease liabilities	$ 43	$ 48