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Commitments (Other Commitments) (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Other Commitments [Line Items] |  |
Commitments | $ 255,054 | $ 220,368
Liability Related To Investments In Low Income Housing Tax Credits | 1,700 | 1,100
Commitments to extend credit |  |
Other Commitments [Line Items] |  |
Commitments | 241,514 | 207,821
Commitments to extend credit | Total commercial |  |
Other Commitments [Line Items] |  |
Commitments | 177,033 | 153,089
Commitments to extend credit | Home equity lines of credit |  |
Other Commitments [Line Items] |  |
Commitments | 19,300 | 16,626
Commitments to extend credit | Credit card |  |
Other Commitments [Line Items] |  |
Commitments | 34,488 | 31,019
Commitments to extend credit | Other |  |
Other Commitments [Line Items] |  |
Commitments | 10,693 | 7,087
Standby letters of credit |  |
Other Commitments [Line Items] |  |
Commitments | 9,495 | 9,053
Standby letters of credit | Remarketing Programs |  |
Other Commitments [Line Items] |  |
Commitments | 3,400 | 3,800
Standby bond purchase agreements |  |
Other Commitments [Line Items] |  |
Commitments | 1,300 | 1,448
Other commitments |  |
Other Commitments [Line Items] |  |
Commitments | $ 2,745 | $ 2,046

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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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- 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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