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Commitments (Other Commitments) (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Other Commitments [Line Items] |  |
Commitments | $ 290,371 | $ 277,172
Liability Related To Investments In Low Income Housing Tax Credits | 2,100 | 2,200
Signature Bridge Bank N.A Capital Commitment |  |
Other Commitments [Line Items] |  |
Commitments | 16,000 |
Commitments to extend credit |  |
Other Commitments [Line Items] |  |
Commitments | 275,372 | 261,728
Commitments to extend credit | Commercial |  |
Other Commitments [Line Items] |  |
Commitments | 209,397 | 198,542
Commitments to extend credit | Home equity |  |
Other Commitments [Line Items] |  |
Commitments | 24,037 | 22,783
Commitments to extend credit | Credit card |  |
Other Commitments [Line Items] |  |
Commitments | 34,197 | 33,066
Commitments to extend credit | Other |  |
Other Commitments [Line Items] |  |
Commitments | 7,741 | 7,337
Standby letters of credit |  |
Other Commitments [Line Items] |  |
Commitments | 10,326 | 10,575
Standby letters of credit | Remarketing Programs |  |
Other Commitments [Line Items] |  |
Commitments | 3,600 | 3,600
Standby bond purchase agreements |  |
Other Commitments [Line Items] |  |
Commitments | 1,088 | 1,208
Other commitments |  |
Other Commitments [Line Items] |  |
Commitments | $ 3,585 | $ 3,661

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- Definition Represents the liability related to investments in low income housing tax credits which is reflected in other liabilities on our Consolidated Balance Sheet. + References No definition available. + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- 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 No definition available. + Details
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- Details
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- Details
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- Details
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