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Loan Sale and Servicing Activities and Variable Interest Entities (Principal Balance, Delinquent Loans (Loans 90 Days or More Past Due), and Net Charge-Offs Related to Serviced Loans) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Residential mortgage loans held for sale |  |  |  |  |
Total principal balance | $ 41,868 |  | $ 41,868 |  | $ 42,726
Delinquent loans | 401 |  | 401 |  | 569
Net charge-offs | 1 | $ 1 | 2 | $ 3 |
Commercial mortgage loans held for sale |  |  |  |  |
Total principal balance | 39,661 |  | 39,661 |  | 39,551
Delinquent loans | 4 |  | 4 |  | $ 42
Net charge-offs | $ 3 | $ 25 | $ 3 | $ 178 |

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- Definition Amount of credit loss after recoveries for transferred financial assets not recognized in the statement of financial position. + References No definition available. + Details
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- Definition This is the principal amount of loans (across all types of loans) that are overdue in payment by a set number of days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (e)(4) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719 + Details
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- Definition This is the sum of principal amount outstanding for both securitized and unsecuritized loans of all types. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719 + Details
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- Details
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- Details
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