v2.4.0.6
Basis Of Presentation (Details)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Basis Of Presentation [Abstract]    
Stock options and restricted stock units outstanding to purchase shares included in diluted earnings per common share 7 4
Anti-dilutive shares not included in computation of diluted earnings per common share   20