ALLOWANCE FOR CREDIT LOSSES - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL balance, end of period	$ 2,562	$ 2,436
ACL, period increase (decrease)	116
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL balance, end of period	1,693	1,638
ACL, period increase (decrease)	65
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
ACL balance, end of period	869	$ 798
ACL, period increase (decrease)	$ 51

Financing Receivable, Allowance For Credit Loss And Off Balance Sheet, Credit Loss, Liability

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

+ Details

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Period Type:	duration

- Definition

Amount, excluding accrued interest, of increase (decrease) in allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Details

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- Details

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