v2.4.0.6
Preferred Stock Textuals (Details) (USD $)
3 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Trust Preferred Securities [Member]
Dec. 31, 2011
Trust Preferred Securities [Member]
Dec. 31, 2011
Preferred Stock, No Voting Rights [Member]
Dec. 31, 2011
Preferred Stock, Voting Rights [Member]
Dec. 31, 2011
Series B - Non-Cumulative Perpetual Preferred Stock [Member]
Dec. 31, 2011
Series A - Non-Cumulative Perpetual Preferred Stock [Member]
Dec. 31, 2011
ESOP Preferred Stock [Member]
Dec. 31, 2011
Series I - 5.80% Fixed-to-Floating Class A Preferred Stock [Member]
Dec. 31, 2010
Series I - 5.80% Fixed-to-Floating Class A Preferred Stock [Member]
Preferred Stock (Textual) [Abstract]                      
Shares issued and outstanding 9,591,931 9,566,921       0       25,010 0
Preferred Stock, Shares Authorized         20,000,000 4,000,000          
Redemption price per share                   $ 100,000  
Trust Preferred Securities Notice Redeemed During Period, Value     $ 5,800,000,000 $ 9,200,000,000              
Preferred stock, former commitment to issue             1,800,000,000 2,500,000,000      
Redemption terms                 We have the option to redeem the ESOP Preferred Stock at any time, in whole or in part, at a redemption price per share equal to the higher of (a) $1,000 per share plus accrued and unpaid dividends or (b) the fair market value    
Additional paid-in capital included related to preferred stock 67,000,000 45,000,000                  
Par value $ 11,971,000,000 $ 9,470,000,000     $ 0 $ 0       $ 2,501,000,000 $ 0
Voting Rights           If issued, preference shares would be limited to one vote per share