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Accounting for Leases as a Lessor - Allowance for Doubtful Accounts for Financing Receivables (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Apr. 30, 2025	Oct. 31, 2024
Allowance for doubtful accounts
Balance at beginning of period	$ 194	$ 243
Provision for credit losses	36	50
Adjustment to the existing allowance	(1)	(4)
Write-offs	(20)	(95)
Balance at end of period	$ 209	$ 194

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amount of credit loss expense (reversal of expense) on financing receivable from change in methodology. Excludes net investment in lease.

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Amount of credit loss expense (reversal of expense) for financing receivable.

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