Annual report pursuant to Section 13 and 15(d)

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

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Securitizations and Other Variable Interest Entities - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Variable Interest Entity [Line Items]    
Trust securities redeemed, carrying value $ 3,100  
Difference between carrying and redemption value 729  
Unconsolidated VIEs    
Variable Interest Entity [Line Items]    
Liquidity commitments to unconsolidated securitization trusts $ 218 $ 442