Financing Receivable, before Allowance for Credit Loss, Excluding Portfolio Layer Cumulative Basis Adjustments

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- Definition

The number of loan categories reported by the entity.

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- Definition

Total amount of portfolio loans sold and or reclassified to loans held-for-sale during the period.

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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.

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No definition available.

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- Definition

Amount, after allowance for credit loss, of accrued interest on financing receivable.

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- Definition

Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income.

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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- Definition

Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk, in portfolio layer hedging relationship.

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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LOANS - Corporate Loans (Details) $ in Millions	3 Months Ended		9 Months Ended
LOANS - Corporate Loans (Details) $ in Millions	Sep. 30, 2023 USD ($) category	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) category	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Receivables [Abstract]
Number of loan categories \| category	2		2
Loans
Loans, net of unearned income	$ 666,348		$ 666,348		$ 657,221
Unallocated portfolio layer cumulative basis adjustments	(171)		(171)
Lease financing
Loans
Loans, net of unearned income	300		300		400
Corporate loans
Loans
Loans sold and/or reclassified to held-for-sale	1,300	$ 2,200	4,200	$ 3,700
Loans, net of unearned income	288,634		288,634		289,154
Corporate loans, net of unearned income, excluding portfolio layer cumulative basis adjustments	288,805		288,805		289,154
Unallocated portfolio layer cumulative basis adjustments	(171)		(171)		0
Corporate loans, net of unearned income	288,634		288,634		289,154
Unearned income	(806)		(806)		(797)
Accrued interest receivable	2,000		2,000		2,000
Corporate loans \| Commercial and industrial
Loans
Loans, net of unearned income					147,803
Corporate loans \| Financial institutions
Loans
Loans, net of unearned income					64,907
Corporate loans \| Mortgage and real estate
Loans
Loans, net of unearned income					21,949
Corporate loans \| Lease financing
Loans
Loans, net of unearned income					354
Corporate loans \| In North America offices
Loans
Loans, net of unearned income	135,790		135,790		141,479
Corporate loans \| In North America offices \| Commercial and industrial
Loans
Loans, net of unearned income	58,130		58,130		56,176
Corporate loans \| In North America offices \| Financial institutions
Loans
Loans, net of unearned income	36,783		36,783		43,399
Corporate loans \| In North America offices \| Mortgage and real estate
Loans
Loans, net of unearned income	17,445		17,445		17,829
Corporate loans \| In North America offices \| Installment and other
Loans
Loans, net of unearned income	23,207		23,207		23,767
Corporate loans \| In North America offices \| Lease financing
Loans
Loans, net of unearned income	225		225		308
Corporate loans \| In offices outside North America
Loans
Loans, net of unearned income	153,015		153,015		147,675
Corporate loans \| In offices outside North America \| Commercial and industrial
Loans
Loans, net of unearned income	95,528		95,528		93,967
Corporate loans \| In offices outside North America \| Financial institutions
Loans
Loans, net of unearned income	23,759		23,759		21,931
Corporate loans \| In offices outside North America \| Mortgage and real estate
Loans
Loans, net of unearned income	6,481		6,481		4,179
Corporate loans \| In offices outside North America \| Installment and other
Loans
Loans, net of unearned income	24,407		24,407		23,347
Corporate loans \| In offices outside North America \| Lease financing
Loans
Loans, net of unearned income	46		46		46
Corporate loans \| In offices outside North America \| Government and official institutions
Loans
Loans, net of unearned income	$ 2,794		$ 2,794		$ 4,205