Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details)

v3.19.3.a.u2
Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Variable Interest Entity [Line Items]      
Total assets $ 2,434,079 $ 2,354,507  
Consolidated VIEs      
Variable Interest Entity [Line Items]      
Total assets 44,381 49,073  
Customer Vehicles      
Variable Interest Entity [Line Items]      
Maximum loss exposure 2,200 2,100  
Collateralized Debt Obligations      
Variable Interest Entity [Line Items]      
Maximum loss exposure 304 421  
Investment Vehicles      
Variable Interest Entity [Line Items]      
Maximum loss exposure 6,400 7,200  
Investment Vehicles | Consolidated VIEs      
Variable Interest Entity [Line Items]      
Total assets 104 270  
Investment Vehicles | Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Total assets 32,400 37,700  
Leveraged Lease Trusts | Consolidated VIEs      
Variable Interest Entity [Line Items]      
Total assets 1,700 1,800  
Tax Credit Vehicles      
Investments in Affordable Housing Projects [Abstract]      
Unfunded commitments $ 4,300 3,800  
Unfunded commitment payment period 5 years    
Tax credits and other benefits $ 1,000 981 $ 1,000
Expected tax benefits recognized, as a percentage 25.00%    
Tax Credit Vehicles | Other income      
Investments in Affordable Housing Projects [Abstract]      
Pretax income (losses) $ (882) (798) $ (766)
Tax Credit Vehicles | Other assets      
Investments in Affordable Housing Projects [Abstract]      
Investments in affordable housing project investments 10,000 8,900  
Tax Credit Vehicles | Unconsolidated VIEs      
Variable Interest Entity [Line Items]      
Maximum loss exposure $ 18,900 $ 17,000