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Commitments and Contingencies - Off-Balance Sheet Financial Instruments (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
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Residential mortgage |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Notional amount | $ 137 | $ 138
Maximum recourse exposure from mortgage loans sold with recourse liability | 93 | 91
Indemnification, recourse, and repurchase reserves | 18 | 18
CRE |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Notional amount | 9,217 | 9,421
Notional amount, maximum recourse exposure | 2,782 | 2,786
Notional amount, maximum recourse exposure, recorded reserves | 10 | 10
Other consumer |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Notional amount | 3,028 | 2,803
Notional amount, maximum recourse exposure | 76 | 80
Commitments to extend, originate, or purchase credit and other commitments |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Notional amount | 234,101 | 230,007
Letters of credit and financial guarantees |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |
Notional amount | $ 9,864 | $ 9,347

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- Definition The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 + 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 + Details
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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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