Accounting for Leases as a Lessor - Schedule of Credit Risk Profile of Gross Financing Receivables (Details) - USD ($) $ in Millions	Apr. 30, 2026	Oct. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivables, gross	$ 9,425	$ 9,740
Low
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	829	2,245
2025/2024	2,183	2,160
2024/2023	1,728	1,189
2023/2022	853	579
2022/2021 and prior	454	213
Financing receivables, gross	6,047	6,386
Moderate
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	538	1,016
2025/2024	1,046	942
2024/2023	795	645
2023/2022	475	347
2022/2021 and prior	334	206
Financing receivables, gross	3,188	3,156
High
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	10	17
2025/2024	28	36
2024/2023	31	47
2023/2022	43	26
2022/2021 and prior	78	72
Financing receivables, gross	$ 190	$ 198

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Amortized cost of financing receivable originated in current fiscal year. Excludes net investment in lease.

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