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STOCK INCENTIVE PLANS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of common stock available for grant under stock incentive plans (in shares) 2,900,000    
Pretax stock-based compensation expense $ 35,000 $ 43,000 $ 46,000
Income tax benefits recognized in earnings for stock-based compensation expense $ 11,000 $ 13,000 $ 15,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at January 1 (in shares) 2,226,286 2,582,804 2,850,455
Granted (in shares) 294,874 294,522 257,693
Exercised (in shares) (317,110) (587,441) (479,452)
Canceled or expired (in shares) (80,014) (63,599) (45,892)
Outstanding at December 31 (in shares) 2,124,036 2,226,286 2,582,804
Weighted Average Price Per Share [Abstract]      
Outstanding at January 1, weighted average price per share (in dollars per share) $ 169.96 $ 149.01 $ 132.67
Granted, weighted average price per share (in dollars per share) 234.25 232.20 248.21
Exercised, weighted average price per share (in dollars per share) 108.28 105.08 100.33
Canceled or expired, weighted average price per share (in dollars per share) 210.01 216.76 199.80
Outstanding at December 31, weighted average price per share (in dollars per share) $ 186.59 $ 169.96 $ 149.01
Options exercisable outstanding at January 1 (in shares) 1,411,460 1,647,903 1,652,417
Options exercisable outstanding at December 31 (in shares) 1,346,707 1,411,460 1,647,903
Stock Options Exercised [Abstract]      
Fair value of options exercised $ 8,086 $ 14,423 $ 11,167
Total intrinsic value of options exercised 35,800 73,671 71,924
Fair value of options vested 14,535 16,047 16,115
Settlements of options exercised $ 34,573 $ 61,863 $ 47,974
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Expiration period 10 years    
Stock Options Exercised [Abstract]      
Unrecognized compensation $ 8,600    
Weighted average period to recognize (in years) 1 year 9 months 18 days