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Warehouse Receivables & Warehouse Lines of Credit - Schedule of Warehouse Receivables (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Warehouse Receivables And Warehouse Lines Of Credit [Abstract] |  |
Beginning balance | $ 561 |
Origination of mortgage loans | 11,041 | $ 8,212
Gains (premiums on loan sales) | 21 |
Proceeds from sale of mortgage loans: |  |
Sale of mortgage loans | (9,963) |
Cash collections of premiums on loan sales | (21) |
Proceeds from sale of mortgage loans | (9,984) | $ (7,479)
Net increase in mortgage servicing rights included in warehouse receivables | 8 |
Ending balance | $ 1,647 |

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- Definition Reflects the gross carrying amount of unpaid loans pertaining to a revolving line of credit used by mortgage bankers in which the mortgage banker originates and purchases mortgage loans due within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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- Definition Net increase (decrease) in mortgage servicing rights included in warehouse receivables. + References No definition available. + Details
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- Definition Sale of mortgage loans held for sale. + References No definition available. + Details
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- Definition Warehouse receivables and warehouse lines of credit. + References No definition available. + Details
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- Definition Net gain (loss) resulting from the sales of securitized, pay-through debt securities collateralized by real estate mortgage loans (mortgages). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(h)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
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- Definition The amount of cash paid for the origination of mortgages that are held for sale. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-21 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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- Definition The cash inflow from collection of repayments from borrowers on loans that are secured with real estate mortgages and are held with the intention to resell in the near future. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-21 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-16 + Details
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