FINANCIAL INSTRUMENTS (Details) (USD $)					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012 Notes Due 2013 [Member]	Dec. 31, 2012 Notes Due 2015 [Member]	Dec. 31, 2011 Notes Due 2016 [Member]	Dec. 31, 2013 Notes Due 2023 [Member]	Dec. 31, 2013 Interest Rate Swap Agreement April 2012 [Member]	Dec. 31, 2012 Interest Rate Swap Agreement April 2012 [Member]	Dec. 31, 2012 Interest Rate Swap Agreement May 2012 [Member]	Dec. 31, 2013 Interest Rate Swap Agreement March 2013 [Member]	Dec. 31, 2011 Interest Rate Swap Agreement March 2009 [Member]	Dec. 31, 2011 Interest Rate Swap Agreement September 2011 [Member]
Financial Instruments [Line Items]
Carrying value of long-term debt	$ 1,796,056,000	$ 1,788,701,000
Fair value of long-term debt	1,947,000,000	2,060,800,000
Notional Amount of Interest Rate Swap Agreements								250,000,000	250,000,000		250,000,000
Weighted Average Interest Rate On Interest Rate Swap Agreements								2.40%	2.70%	2.10%
Amount of Notes Issued			250,000,000	250,000,000
Debt Instrument, Interest Rate, Stated Percentage			5.00%	4.85%	1.50%	2.625%
Debt Instrument, Maturity Date					Nov. 01, 2016	May 01, 2023
Interest Rate Cash Flow Hedge Asset at Fair Value	22,700,000
Derivative, Gain (Loss) on Derivative, Net							9,500,000			200,000	26,800,000	2,300,000
Notional Amount of Foreign Currency Derivative Purchase Contracts	158,400,000	17,100,000
Notional Amount of Foreign Currency Derivative Sale Contracts	2,800,000	57,800,000
Fair value of foreign exchange forward contracts, net — asset (liability)	$ 3,200,000	$ 1,200,000