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SHARE-BASED COMPENSATION PLANS (Restricted Units) (Detail)
shares in Thousands
12 Months Ended
Dec. 31, 2020
$ / shares
shares
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 97
Granted (in shares) | shares 59
Vested (in shares) | shares (49)
Forfeited (in shares) | shares 0
Outstanding (in shares) | shares 107
Expected to vest (in shares) | shares 107
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 $ 149.99
Granted (in dollars per share) | $ / shares 108.15
Vested (in dollars per share) | $ / shares 124.83
Forfeited (in dollars per share) | $ / shares 0
Outstanding (in dollars per share) | $ / shares 138.37
Expected to vest (in dollars per share) | $ / shares $ 138.37
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 149
Granted (in shares) | shares 84
Vested (in shares) | shares (1)
Forfeited (in shares) | shares (5)
Outstanding (in shares) | shares 227
Expected to vest (in shares) | shares 227
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 $ 105.42
Granted (in dollars per share) | $ / shares 83.36
Vested (in dollars per share) | $ / shares 98.34
Forfeited (in dollars per share) | $ / shares 107.40
Outstanding (in dollars per share) | $ / shares 97.24
Expected to vest (in dollars per share) | $ / shares $ 97.24