Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share - Dilutive Shares (Details)

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Earnings Per Common Share - Dilutive Shares (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Class of Stock [Line Items]      
Incremental common shares attributable to dilutive effect of call options and warrants 150 150 150
Series T Preferred Stock      
Class of Stock [Line Items]      
Incremental common shares attributable to dilutive effect of conversion of preferred stock 700 700