Quarterly report pursuant to Section 13 or 15(d)

Allowance for Credit Losses (Details Textuals)

 v2.3.0.11
Allowance for Credit Losses (Details Textuals) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Mar. 31, 2011
Dec. 31, 2010
Allowance for Credit Losses (Textuals) [Abstract]            
Provision for credit losses associated with the purchased credit-impaired loan portfolio $ 412,000,000 $ 256,000,000 $ 2,000,000,000 $ 1,100,000,000    
Allowance for loan and lease losses associated with purchased credit-impaired loan portfolio 8,400,000,000   8,400,000,000   8,000,000,000 6,400,000,000
U.S. small business commercial renegotiated TDR loans 268,000,000   268,000,000     445,000,000
Loans and leases, measured at fair value $ 9,597,000,000   $ 9,597,000,000     $ 3,321,000,000