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 $)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Loans Receivable Held-for-sale, Net $ 14,549,000,000   $ 19,413,000,000
Proceeds including cash and securities from sales securitizations and paydowns of loans held for sale (46,400,000,000) (24,600,000,000)  
Payments for Origination and Purchases of Loans Held-for-sale $ 40,128,000,000 $ 22,876,000,000