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
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Receivables [Abstract]      
Loans held-for-sale $ 6,511   $ 11,430
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale 17,300 $ 21,100  
Originations and purchases $ 11,709 $ 18,103