INCENTIVE PLANS (Summary of Our Stock Option/Sosar Activity) (Details) (Employee Stock Option [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Outstanding at January 1, 2014	5,198,746
Number of Shares, Granted	230,150
Number of Shares, Exercised	(616,539)
Number of Shares, Forfeited or expired	(26,052)
Number of Shares, Outstanding at December 31, 2014	4,786,305
Number of Shares, Vested and expected to vest	4,772,529
Number of Shares, Exercisable at December 31, 2014	4,311,179
Weighted-average Exercise Price, Outstanding at January 1, 2014	$ 58.59
Weighted-average Exercise Price, Granted	$ 66.00
Weighted-average Exercise Price, Exercised	$ 52.72
Weighted-average Exercise Price, Forfeited or expired	$ 67.53
Weighted-average Exercise Price, Outstanding at December 31, 2014	$ 59.65
Weighted-average Exercise Price, Vested and expected to vest	$ 59.65
Weighted-average Exercise Price, Exercisable at December 31, 2014	$ 59.76
Weighted-average Remaining Contractual Life (Years), Outstanding	3 years 8 months 12 days
Weighted-average Remaining Contractual Life (Years), Vested and expected to vest	3 years 8 months 5 days
Weighted-average Remaining Contractual Life (Years), Exercisable at December 31, 2014	3 years 2 months 9 days
Aggregate Intrinsic Value, Outstanding at December 31, 2014	$ 54,151
Aggregate Intrinsic Value, Vested and expected to vest	54,083
Aggregate Intrinsic Value, Exercisable at December 31, 2014	$ 50,422