v2.4.0.6
EARNINGS PER SHARE (Details 2)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Anti-dilutive weighted average common shares      
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares)   36.3 36.2
RSUs
     
Anti-dilutive weighted average common shares      
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares) 1.0    
PSUs
     
Anti-dilutive weighted average common shares      
Potentially dilutive securities excluded from calculation of diluted earnings per share (in shares) 3.1 2.9 1.8