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Commitments (Other Commitments) (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Other Commitments [Line Items] |  |
Commitments | $ 313,900 | $ 295,100
Investments in qualified affordable housing projects | 2,800 | 2,200
Commitments to extend credit |  |
Other Commitments [Line Items] |  |
Commitments | 294,302 | 277,785
Commitments to extend credit | Commercial |  |
Other Commitments [Line Items] |  |
Commitments | 223,730 | 209,864
Commitments to extend credit | Home equity |  |
Other Commitments [Line Items] |  |
Commitments | 23,861 | 24,086
Commitments to extend credit | Credit card |  |
Other Commitments [Line Items] |  |
Commitments | 38,911 | 36,447
Commitments to extend credit | Other |  |
Other Commitments [Line Items] |  |
Commitments | 7,800 | 7,388
Standby letters of credit |  |
Other Commitments [Line Items] |  |
Commitments | 11,417 | 11,251
Standby letters of credit | Remarketing Programs |  |
Other Commitments [Line Items] |  |
Commitments | 3,500 | 3,700
Standby bond purchase agreements |  |
Other Commitments [Line Items] |  |
Commitments | 1,277 | 1,095
Other commitments |  |
Other Commitments [Line Items] |  |
Commitments | $ 6,904 | $ 4,969

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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3 + Details
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