Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - First Lien Mortgage Securitizations (Details)

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Securitizations and Other Variable Interest Entities - First Lien Mortgage Securitizations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Residential Mortgage - Agency      
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]      
Proceeds from loan sales $ 6,858 $ 5,801 $ 16,161
Gains on securitizations 27 62 158
Repurchases from securitization trusts 881 1,485 2,713
Gain (loss) on loans securitized 64 71 243
Deconsolidation of securitizations 1,200    
Commercial Mortgage      
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]      
Proceeds from loan sales 8,661 6,991 5,887
Gains on securitizations 103 101 91
Repurchases from securitization trusts 0 0 0
First Lien Mortgages      
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]      
Mortgage loans serviced for investors 192,100 226,600  
Servicing fees 585 710 $ 893
Transfers continuing involvement servicing fee advances $ 2,400 $ 3,300