INCENTIVE PLANS (Tables)

12 Months Ended

Dec. 31, 2015

INCENTIVE PLANS [Abstract]

Summary of Activity For Nonvested Performance Share Units

	Target	Weighted-average
	Number	Grant-date
	of Shares	Fair Value
Performance Shares
Nonvested at January 1, 2015	1,019,416	$             53.16
Granted	231,730	74.85
Vested	(441,483)	46.22
Canceled/forfeited	(3,324)	67.28
Nonvested at December 31, 2015	806,339	$             63.13

Aggregate Value of Performance Shares

in thousands	2015	2014	2013
Aggregate value of distributed
performance shares	$       26,258	$                0	$         9,286

Weighted-Average Fair Value And Weighted-Average Assumptions Used In Estimating Fair Value of Grants

	2015	2014	2013
SOSARs
Fair value	$        25.17	$        21.94	$        16.96
Risk-free interest rate	1.85%	2.40%	1.40%
Dividend yield	1.70%	1.64%	1.72%
Volatility	33.00%	33.00%	33.00%
Expected term	8.00 years	8.00 years	8.00 years

Summary of Our Stock Option/SOSAR Activity

			Weighted-average
			Remaining	Aggregate
	Number	Weighted-average	Contractual	Intrinsic Value
	of Shares	Exercise Price	Life (Years)	(in thousands)
Stock Options/SOSARs
Outstanding at January 1, 2015	4,786,305	$             59.65
Granted	161,310	79.41
Exercised	(1,890,028)	63.48
Forfeited or expired	(4,838)	64.48
Outstanding at December 31, 2015	3,052,749	$             58.32	4.36	$         118,401
Vested and expected to vest	3,038,898	$             58.27	4.35	$         118,043
Exercisable at December 31, 2015	2,602,447	$             56.65	3.70	$         106,100

Aggregate Intrinsic Values of Options Exercised

in thousands	2015	2014	2013
Aggregate intrinsic value of options/
SOSARs exercised	$       43,620	$         7,372	$         4,563

Cash and Stock Consideration Received and Tax Benefit Realized from Stock Option/Sosar Exercises and Compensation Cost Recorded

in thousands	2015	2014	2013
Stock Options/SOSARs
Cash and stock consideration received
from exercises	$       72,884	$       23,199	$       17,156
Tax benefit from exercises	16,920	2,844	1,770
Compensation cost	2,221	4,650	3,936