INCENTIVE PLANS (Summary Of Activity For Nonvested Performance Share Units) (Details) (Performance Shares [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target Number of Shares, Beginning Balance	836,366
Target Number of Shares, Granted	310,610
Target Number of Shares, Vested	0
Target Number of Shares, Canceled/forfeited	(26,780)
Target Number of Shares, Ending Balance	1,120,196	836,366
Weighted-average Grant Date Fair Value, Beginning Balance	$ 43.21
Weighted-average Grant Date Fair Value, Granted	$ 53.65	$ 46.22	$ 39.38
Weighted-average Grant Date Fair Value, Vested	$ 0.00
Weighted-average Grant Date Fair Value, Canceled/forfeited	$ 45.91
Weighted-average Grant Date Fair Value, Ending Balance	$ 46.03	$ 43.21