XML 110 R91.htm IDEA: XBRL DOCUMENT v2.3.0.15
Earnings Per Common Share (Details Textual)
In Millions, unless otherwise specified
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Series L Preferred Stock [Member] | Mandatorily Convertible [Member]
    
Earnings Per Common Share (Textual) [Abstract]    
Average options to purchase shares of common stock6711767117
Preferred Stock, Dividend Rate, Percentage  7.25% 
Series T Preferred Stock [Member]
    
Earnings Per Common Share (Textual) [Abstract]    
Average options to purchase shares of common stock  77 
Preferred Stock, Dividend Rate, Percentage  6.00% 
Incremental Common Shares Attributable to Conversion of Preferred Stock228   
Stock Options [Member]
    
Earnings Per Common Share (Textual) [Abstract]    
Average options to purchase shares of common stock213265219273
Warrants [Member]
    
Earnings Per Common Share (Textual) [Abstract]    
Average options to purchase shares of common stock2722722720