v2.4.0.6
Loans and Allowance for Credit Losses, by Delinquency Status, Consumer (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2008
Dec. 31, 2007
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value $ 36,719 $ 41,430 $ 51,705 $ 58,797  
Loans 769,631 757,267 782,770 864,830 382,195
Real estate 1-4 family first mortgage [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value 29,746 33,245 38,386 39,214  
Loans 228,894 230,235 229,536 247,894 71,415
Real estate 1-4 family junior lien mortgage [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value 206 250 331 728  
Loans 85,991 96,149 103,708 110,164 75,565
Credit Card [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value 0 0      
Loans 22,836 22,260 24,003 23,555 18,762
Other revolving credit and installment [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value 0 0 0 151  
Loans 86,460 86,565 89,058 93,253 56,171
Total Consumer [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Purchased Credit Impaired Loans, Carrying Value 29,952 33,495 38,717 40,093  
Loans 424,181 435,209 446,305 474,866 221,913
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Real estate 1-4 family first mortgage [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Current-29 DPD 156,985 164,558      
30-59 DPD 4,075 4,516      
60-89 DPD 2,012 2,173      
90-119 DPD 1,152 1,399      
120-179 DPD 1,704 2,080      
180+ DPD 6,665 6,750      
Government insured/guaranteed loans 26,555 15,514      
Loans, excluding Purchased Credit Impaired Loans 199,148 196,990      
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Real estate 1-4 family junior lien mortgage [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Current-29 DPD 83,033 92,512      
30-59 DPD 786 917      
60-89 DPD 501 608      
90-119 DPD 382 476      
120-179 DPD 537 764      
180+ DPD 546 622      
Government insured/guaranteed loans 0 0      
Loans, excluding Purchased Credit Impaired Loans 85,785 95,899      
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Credit Card [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Current-29 DPD 22,125 21,276      
30-59 DPD 211 262      
60-89 DPD 154 207      
90-119 DPD 135 190      
120-179 DPD 211 324      
180+ DPD 0 1      
Government insured/guaranteed loans 0 0      
Loans, excluding Purchased Credit Impaired Loans 22,836 22,260      
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Other revolving credit and installment [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Current-29 DPD 69,712 67,129      
30-59 DPD 963 1,261      
60-89 DPD 275 376      
90-119 DPD 127 171      
120-179 DPD 33 58      
180+ DPD 4 117      
Government insured/guaranteed loans 15,346 17,453      
Loans, excluding Purchased Credit Impaired Loans 86,460 86,565      
Loans Excluding Certain Loans Acquired In Transfer With Evidence Of Credit Deterioration [Member] | Total Consumer [Member]
          
Financing Receivable, Recorded Investment, Aging [Abstract]          
Current-29 DPD 331,855 345,475      
30-59 DPD 6,035 6,956      
60-89 DPD 2,942 3,364      
90-119 DPD 1,796 2,236      
120-179 DPD 2,485 3,226      
180+ DPD 7,215 7,490      
Government insured/guaranteed loans 41,901 32,967      
Loans, excluding Purchased Credit Impaired Loans $ 394,229 $ 401,714