ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Reclassifications From Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amount Reclassified from Accumulated Other Comprehensive Income
Miscellaneous, net									$ 8,662	$ 2,782	$ 163
Interest expense									40,597	35,237	34,615
Total before tax									(294,825)	(280,497)	(294,571)
Tax benefit									74,796	74,893	95,276
Total reclassifications for the period	$ (49,513)	$ (53,523)	$ (65,174)	$ (51,820)	$ (49,581)	$ (53,098)	$ (59,048)	$ (43,863)	(220,030)	(205,590)	(199,348)
Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total reclassifications for the period									12,772	3,050	4,857
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Amortization of net loss									5,100	4,823	7,216
Amortization of prior service cost									400	350	256
Total before tax									5,500	5,173	7,472
Tax benefit									(1,376)	(1,781)	(2,640)
Total reclassifications for the period									4,124	3,392	4,832
Foreign Currency | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Miscellaneous, net										368
Total before tax										(368)
Total reclassifications for the period										(368)
Derivatives | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Total before tax									10,427	40	39
Tax benefit									(1,779)	(14)	(14)
Total reclassifications for the period									8,648	26	25
Derivatives | Treasury locks | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense									42	$ 40	$ 39
Derivatives | Cross Currency Swap Contract: Interest Component | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense									(1,526)
Derivatives | Cross Currency Swap Contract: Foreign Exchange Component | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Miscellaneous, net									$ 11,911