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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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+ 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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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Allowance for Credit Losses on Loans and Leases - Narrative (Details) - USD ($) $ in Millions		9 Months Ended
	Mar. 20, 2023	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses
Allowance for credit losses on loans and leases		$ 619	$ 393	$ 218	$ 199
Increase in allowance for credit losses		226
Macroeconomic Impact
Financing Receivable, Allowance for Credit Losses
Increase in allowance for credit losses		88
Signature Bridge Bank
Financing Receivable, Allowance for Credit Losses
Increase in allowance for credit losses	$ 138
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Losses
Allowance for credit losses on loans and leases		$ 48	$ 23