v2.4.0.6
SHAREHOLDERS' EQUITY (DETAILS)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Class of Stock [Line Items]      
Total shares issued at end of period 170,159,000 154,912,000  
Total treasury shares at end of period (44,571,000) (42,519,000)  
Total shares outstanding 125,588,000 112,393,000  
Common Shares [Member]
      
Class of Stock [Line Items]      
Shares issued, balance at beginning of period 154,912,000 152,465,000 150,455,000
Shares issued 15,247,000 2,447,000 2,010,000
Total shares issued at end of period 170,159,000 154,912,000 152,465,000
Treasury shares, balance at beginning of period (42,519,000) (20,325,000) (14,243,000)
Shares repurchased (2,052,000) (22,194,000) (6,082,000)
Total treasury shares at end of period (44,571,000) (42,519,000) (20,325,000)
Total shares outstanding 125,588,000 112,393,000 132,140,000