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Accounting for Leases as a Lessor - Credit Risk Profile of Gross Financing Receivables (Details) - USD ($) $ in Millions	Apr. 30, 2021	Oct. 31, 2020
Gross financing receivables
Financing receivables, net	$ 9,142	$ 9,058
Low
Gross financing receivables
Financing receivables, net	4,632	4,590
Moderate
Gross financing receivables
Financing receivables, net	4,069	4,091
High
Gross financing receivables
Financing receivables, net	$ 441	$ 377

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Amount, before allowance for credit loss, of financing receivable.

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