Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Loans Held-for-Sale (Details)

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Outstanding Loans and Leases - Loans Held-for-Sale (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Receivables [Abstract]      
Loans held-for-sale $ 5,576   $ 11,430
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale 23,400 $ 28,000  
Originations and purchases $ 16,830 $ 31,404