Accounting for Leases as a Lessor - Schedule of Credit Risk Profile of Gross Financing Receivables (Details) - USD ($) $ in Millions	Jul. 31, 2026	Oct. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivables, gross	$ 9,908	$ 9,740
Low
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	1,778	2,245
2025/2024	2,053	2,160
2024/2023	1,516	1,189
2023/2022	705	579
2022/2021 and prior	352	213
Financing receivables, gross	6,404	6,386
Moderate
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	1,000	1,016
2025/2024	965	942
2024/2023	709	645
2023/2022	399	347
2022/2021 and prior	251	206
Financing receivables, gross	3,324	3,156
High
Financing Receivable, Allowance for Credit Loss [Line Items]
2026/2025	25	17
2025/2024	28	36
2024/2023	32	47
2023/2022	34	26
2022/2021 and prior	61	72
Financing receivables, gross	$ 180	$ 198

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