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, 2017
Sep. 30, 2016
Dec. 31, 2016
Receivables [Abstract]      
Loans held-for-sale $ 13,243   $ 9,066
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale 28,000 $ 22,100  
Originations and purchases $ 31,404 $ 24,154