v2.4.0.6
Stockholders' Equity
 12 Months Ended
Dec. 31, 2011
Stockholders' Equity [Abstract]  
STOCKHOLDERS' EQUITY

12. STOCKHOLDERS’ EQUITY

In August 2011, our board of directors approved a share repurchase program pursuant to which we may repurchase up to $750 million of our outstanding shares of common stock through December 31, 2013. This authorization is in addition to the $400 million repurchase program authorized in November 2010. From November 2010 to December 31, 2011, we repurchased 17.1 million shares of our stock for $500.8 million at a weighted average cost per share of $29.21.

We initiated a quarterly cash dividend in July 2003. The dividend has been increased from time to time thereafter. In July 2011, the board of directors approved an increase in the quarterly dividend to $0.22 per share. Cash dividends declared were $314.1 million, $298.8 million and $288.7 million for the years ended December 31, 2011, 2010 and 2009, respectively. As of December 31, 2011, we recorded a quarterly dividend payable of $81.4 million to stockholders of record at the close of business on January 3, 2012.