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 $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Loans and Leases Receivable Disclosure [Abstract]      
Loans held-for-sale $ 9,732,000,000us-gaap_LoansReceivableHeldForSaleNet   $ 12,836,000,000us-gaap_LoansReceivableHeldForSaleNet
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale 11,600,000,000us-gaap_ProceedsFromSaleAndCollectionOfLoansHeldforsale 8,300,000,000us-gaap_ProceedsFromSaleAndCollectionOfLoansHeldforsale  
Originations and purchases $ (10,587,000,000)us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale $ (10,024,000,000)us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale