v2.4.0.6
Earnings Per Common Share (Antidilutive Securities Excluded from the Computation of Diluted EPS) (Details)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Antidilutive securities outstanding 50 78 416
RSUs and Performance-based Stock Units
     
Antidilutive securities outstanding 8 21 38
Stock Options
     
Antidilutive securities outstanding 42 57 67
Series B Preferred Stock
     
Antidilutive securities outstanding 0 0 311