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SHARE-BASED COMPENSATION PLANS (Restricted Units) (Detail)
shares in Thousands
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding (in shares) | shares 204
Granted (in shares) | shares 1
Vested (in shares) | shares (34)
Forfeited (in shares) | shares (2)
Outstanding (in shares) | shares 169
Expected to vest (in shares) | shares 169
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding (in dollars per share) | $ / shares $ 74.38
Granted (in dollars per share) | $ / shares 98.34
Vested (in dollars per share) | $ / shares 70.36
Forfeited (in dollars per share) | $ / shares 85.47
Outstanding (in dollars per share) | $ / shares 75.19
Expected to vest (in dollars per share) | $ / shares $ 75.19
Performance Shares [Member]  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Outstanding (in shares) | shares 204
Granted (in shares) | shares 68
Vested (in shares) | shares (137)
Forfeited (in shares) | shares 0
Outstanding (in shares) | shares 135
Expected to vest (in shares) | shares 135
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Outstanding (in dollars per share) | $ / shares $ 71.28
Granted (in dollars per share) | $ / shares 62.91
Vested (in dollars per share) | $ / shares 62.91
Forfeited (in dollars per share) | $ / shares 0.00
Outstanding (in dollars per share) | $ / shares 75.51
Expected to vest (in dollars per share) | $ / shares $ 75.51