Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities (Details)

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Securitizations and Other Variable Interest Entities - Other Variable Interest Entities (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
On-balance sheet assets        
Trading account assets $ 313,400 $ 247,080    
Debt securities carried at fair value 297,700 308,073    
Loans and leases 993,145 979,124    
Allowance for loan and lease losses (12,104) (12,387) $ (16,168) $ (18,802)
Other assets 170,250 163,869    
Total assets 3,238,223 3,169,495 $ 2,969,992  
On-balance sheet liabilities        
Long-term debt 278,710 280,117    
Total liabilities 2,971,606 2,899,429    
Consolidated VIEs        
On-balance sheet assets        
Trading account assets 2,160 5,004    
Loans and leases 15,946 17,135    
Allowance for loan and lease losses (880) (958)    
Other assets 417 189    
Total assets 17,643 21,370    
On-balance sheet liabilities        
Long-term debt 3,557 3,587    
All other liabilities 6 7    
Total liabilities 3,791 3,841    
Other Variable Interest Entities        
On-balance sheet liabilities        
Total assets of VIEs, Unconsolidated 94,304 92,249    
Total assets of VIEs 96,875 97,330    
Other Variable Interest Entities | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 2,355 4,819    
On-balance sheet assets        
Trading account assets 433 2,552    
Debt securities carried at fair value 0 0    
Loans and leases 2,118 2,503    
Allowance for loan and lease losses (2) (2)    
Other assets 22 28    
Total assets 2,571 5,081    
On-balance sheet liabilities        
Short-term borrowings 32 51    
Long-term debt 184 211    
All other liabilities 1 0    
Total liabilities 217 262    
Other Variable Interest Entities | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 28,633 27,790    
On-balance sheet assets        
Trading account assets 640 626    
Debt securities carried at fair value 6 7    
Loans and leases 70 47    
Allowance for loan and lease losses (12) (12)    
Other assets 27,438 26,628    
Total assets 28,142 27,296    
On-balance sheet liabilities        
Short-term borrowings 0 0    
Long-term debt 0 0    
All other liabilities 6,667 6,548    
Total liabilities 6,667 6,548    
Other Variable Interest Entities | Variable Interest Entity        
Variable Interest Entity [Line Items]        
Maximum loss exposure 30,988 32,609    
On-balance sheet assets        
Trading account assets 1,073 3,178    
Debt securities carried at fair value 6 7    
Loans and leases 2,188 2,550    
Allowance for loan and lease losses (14) (14)    
Other assets 27,460 26,656    
Total assets 30,713 32,377    
On-balance sheet liabilities        
Short-term borrowings 32 51    
Long-term debt 184 211    
All other liabilities 6,668 6,548    
Total liabilities $ 6,884 $ 6,810