v2.4.0.6
Loans and Allowance for Credit Losses, Loans Outstanding (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2008
Dec. 31, 2007
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans $ 769,631 $ 757,267 $ 782,770 $ 864,830 $ 382,195
Commercial and Industrial Loans [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 167,216 151,284 158,352 202,469 90,468
Commercial Real Estate Mortgage [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 105,975 99,435 97,527 94,923 36,747
Commercial Real Estate Construction [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 19,382 25,333 36,978 42,861 18,854
Lease Financing [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 13,117 13,094 14,210 15,829 6,772
Foreign Loans [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 39,760 32,912 29,398 33,882 7,441
Total Commercial [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 345,450 322,058 336,465 389,964 160,282
Real estate 1-4 family first mortgage [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 228,894 230,235 229,536 247,894 71,415
Real estate 1-4 family junior lien mortgage [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 85,991 96,149 103,708 110,164 75,565
Credit Card [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 22,836 22,260 24,003 23,555 18,762
Other revolving credit and installment [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans 86,460 86,565 89,058 93,253 56,171
Total Consumer [Member]
         
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Loans $ 424,181 $ 435,209 $ 446,305 $ 474,866 $ 221,913