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SUBSEQUENT EVENTS (DETAILS) - USD ($)
$ / shares in Units, $ in Thousands
 2 Months Ended 5 Months Ended 12 Months Ended
Jan. 15, 2016
Feb. 24, 2016
Jan. 15, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Common Stock [Member]            
Subsequent Event [Line Items]            
Treasury Stock, Shares, Acquired       4,616,000 11,752,000 10,830,000
Treasury Stock Acquired, Average Cost Per Share       $ 57.32 $ 46.22 $ 43.61
Treasury Stock Acquired, Cost       $ 264,538 $ 543,202 $ 472,263
Accelerated Share Repurchase Agreement August 17 2015 [Member]            
Subsequent Event [Line Items]            
Treasury Stock, Shares, Acquired       4,149,378    
Treasury Stock Acquired, Cost       $ 300,000    
Subsequent Event [Member] | Common Stock [Member]            
Subsequent Event [Line Items]            
Stock Repurchase Program, Remaining Authorized Repurchase Amount   $ 654,000        
Subsequent Event [Member] | Excluding Accelerated Share Repurchases [Member] | Common Stock [Member]            
Subsequent Event [Line Items]            
Treasury Stock, Shares, Acquired   1,809,574        
Treasury Stock Acquired, Average Cost Per Share   $ 52.93        
Treasury Stock Acquired, Cost   $ 96,000        
Subsequent Event [Member] | Accelerated Share Repurchase Agreement August 17 2015 [Member]            
Subsequent Event [Line Items]            
Treasury Stock, Shares, Acquired 1,358,380   5,507,758      
Treasury Stock Acquired, Average Cost Per Share     $ 54.47