COMMITMENTS AND CONTINGENCIES - Commitments to Extend Credit (Details) $ in Millions	12 Months Ended
Oct. 31, 2021 USD ($)
Commitments to Extend Credit
Provision for credit losses	$ (18)
Commitments to Extend Credit
Commitments to Extend Credit
Provision for credit losses	2
Wholesale Receivables
Commitments to Extend Credit
Unused commitments to extend credit	14,000
Provision for credit losses	(1)
Retail Customer Receivables
Commitments to Extend Credit
Unused commitments to extend credit	$ 30,000

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(11))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Name:	us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration