Annual report pursuant to Section 13 and 15(d)

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

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Securitizations and Other Variable Interest Entities - First Lien Mortgages VIE (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
On-balance sheet assets    
Trading account assets $ 214,348 $ 209,358
Debt securities carried at fair value 238,101 315,117
Held-to-maturity securities 203,652 125,013
Loans and leases 946,895 936,749
All other assets 116,320 135,043
Total assets 2,354,507 2,281,234
Total liabilities 2,089,182 2,014,088
Commercial Mortgage    
On-balance sheet assets    
Debt securities carried at fair value 14,078  
Unconsolidated VIEs | Agency    
Variable Interest Entity [Line Items]    
Maximum loss exposure 16,011 19,110
On-balance sheet assets    
All other assets 0 10
Total assets 16,011 19,110
Principal balance outstanding 187,512 232,761
Unconsolidated VIEs | Agency | Senior Lien    
On-balance sheet assets    
Trading account assets 460 716
Debt securities carried at fair value 9,381 15,036
Held-to-maturity securities 6,170 3,348
Unconsolidated VIEs | Non-agency | Prime    
Variable Interest Entity [Line Items]    
Maximum loss exposure 448 689
On-balance sheet assets    
All other assets 3 5
Total assets 279 488
Principal balance outstanding 8,954 10,549
Unconsolidated VIEs | Non-agency | Prime | Senior Lien    
On-balance sheet assets    
Trading account assets 30 6
Debt securities carried at fair value 246 477
Held-to-maturity securities 0 0
Unconsolidated VIEs | Non-agency | Subprime    
Variable Interest Entity [Line Items]    
Maximum loss exposure 1,897 2,643
On-balance sheet assets    
All other assets 37 38
Total assets 1,543 2,269
Principal balance outstanding 8,719 10,254
Unconsolidated VIEs | Non-agency | Subprime | Senior Lien    
On-balance sheet assets    
Trading account assets 36 10
Debt securities carried at fair value 1,470 2,221
Held-to-maturity securities 0 0
Unconsolidated VIEs | Non-agency | Alt-A    
Variable Interest Entity [Line Items]    
Maximum loss exposure 217 403
On-balance sheet assets    
All other assets 2 2
Total assets 217 403
Principal balance outstanding 23,467 28,129
Unconsolidated VIEs | Non-agency | Alt-A | Senior Lien    
On-balance sheet assets    
Trading account assets 90 50
Debt securities carried at fair value 125 351
Held-to-maturity securities 0 0
Unconsolidated VIEs | Commercial Mortgage    
Variable Interest Entity [Line Items]    
Maximum loss exposure 767 585
On-balance sheet assets    
All other assets 40 88
Total assets 665 470
Principal balance outstanding 43,593 26,504
Unconsolidated VIEs | Commercial Mortgage | Senior Lien    
On-balance sheet assets    
Trading account assets 97 108
Debt securities carried at fair value 0 0
Held-to-maturity securities 528 274
Consolidated VIEs    
On-balance sheet assets    
Trading account assets 5,798 6,521
Loans and leases 43,850 48,929
All other assets 337 1,721
Total assets 49,073 56,155
Total liabilities 11,716 10,222
Consolidated VIEs | Agency    
Variable Interest Entity [Line Items]    
Maximum loss exposure 13,296 14,502
On-balance sheet assets    
Trading account assets 1,318 232
Loans and leases 11,858 14,030
All other assets 143 240
Total assets 13,319 14,502
Total liabilities 26 3
Consolidated VIEs | Non-agency | Prime    
Variable Interest Entity [Line Items]    
Maximum loss exposure 7 571
On-balance sheet assets    
Trading account assets 150 571
Loans and leases 0 0
All other assets 0 0
Total assets 150 571
Total liabilities 143 0
Consolidated VIEs | Non-agency | Subprime    
Variable Interest Entity [Line Items]    
Maximum loss exposure 0 0
On-balance sheet assets    
Trading account assets 0 0
Loans and leases 0 0
All other assets 0 0
Total assets 0 0
Total liabilities 0 0
Consolidated VIEs | Non-agency | Alt-A    
Variable Interest Entity [Line Items]    
Maximum loss exposure 0 0
On-balance sheet assets    
Trading account assets 0 0
Loans and leases 0 0
All other assets 0 0
Total assets 0 0
Total liabilities 0 0
Consolidated VIEs | Commercial Mortgage    
Variable Interest Entity [Line Items]    
Maximum loss exposure 76 0
On-balance sheet assets    
Trading account assets 76 0
Loans and leases 0 0
All other assets 0 0
Total assets 76 0
Total liabilities $ 0 $ 0