EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015		Sep. 30, 2014		Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2013
Changes in equity
Balance at the beginning of the period					$ 1,285,781		$ 1,530,688		$ 1,530,688
Comprehensive income:
Net income including non-controlling interests	$ (60,481)		$ 44,832		78,713		178,545
Other comprehensive income (loss)	33,331		(46,328)		(441)		(42,073)
Total comprehensive income (loss)	$ (27,150)		$ (1,496)		78,272		136,472
Cash dividends declared - $0.87 per share and $0.69 per share for the nine months ended September 30, 2015 and 2014, respectively					$ (64,626)		$ (54,646)
Cash dividends declared per share (in dollars per share)	$ 0.29		$ 0.23		$ 0.87		$ 0.69
Issuance of shares under benefit plans					$ 12,028		$ 15,634
Purchase of shares for treasury					(297,804)		(249,403)
Transactions with Noncontrolling Interests					(1,682)		(2,266)
Balance at the end of the period	$ 1,011,969		$ 1,376,479		1,011,969		1,376,479		1,285,781
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(288,473)		(194,779)		(288,473)		(194,779)		(288,622)	$ (321,880)	$ (148,391)	$ (151,941)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(47,200)		(49,213)		(87,659)		(51,029)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	80,607		2,825		87,808		8,191
Net Current-Period Other Comprehensive Income (Loss), Net of Tax	33,407		(46,388)		149		(42,838)
Net sales	645,166		715,777		1,967,806		2,129,370
Cost of goods sold	446,272		474,168		1,322,741		1,411,158
Income Tax Expense (Benefit)	(28,045)		32,953		19,902		96,532
Shareholders' Equity
Changes in equity
Balance at the beginning of the period					1,282,549		1,526,602		1,526,602
Comprehensive income:
Net income including non-controlling interests					78,786		179,474
Other comprehensive income (loss)					149		(42,838)
Total comprehensive income (loss)					78,935		136,636
Cash dividends declared - $0.87 per share and $0.69 per share for the nine months ended September 30, 2015 and 2014, respectively					(64,626)		(54,646)
Issuance of shares under benefit plans					12,028		15,634
Purchase of shares for treasury					(297,804)		(249,403)
Transactions with Noncontrolling Interests					0		(1,484)
Balance at the end of the period	1,011,082		1,373,339		1,011,082		1,373,339		1,282,549
Noncontrolling Interests
Changes in equity
Balance at the beginning of the period					3,232		4,086		4,086
Comprehensive income:
Net income including non-controlling interests					(73)		(929)
Other comprehensive income (loss)					(590)		765
Total comprehensive income (loss)					(663)		(164)
Cash dividends declared - $0.87 per share and $0.69 per share for the nine months ended September 30, 2015 and 2014, respectively					0		0
Issuance of shares under benefit plans					0		0
Purchase of shares for treasury					0		0
Transactions with Noncontrolling Interests					(1,682)		(782)
Balance at the end of the period	887		3,140		887		3,140		3,232
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	302		85		302		85		(9)	512	(228)	369
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(51)		397		378		(486)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(159)	[1]	(84)	[1]	(67)	[2]	202	[2]
Net Current-Period Other Comprehensive Income (Loss), Net of Tax	(210)		313		311		(284)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income | Sales
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net sales	(279)		(23)		(800)		27
Income Tax Expense (Benefit)	(105)		(20)		(429)		(10)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income | Cost of goods sold
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cost of goods sold	120		(61)		733		175
Income Tax Expense (Benefit)	90		(42)		497		63
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(110,018)		(152,704)		(110,018)		(152,704)		(197,893)	(190,784)	(155,613)	(160,693)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0		0		0		0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	80,766	[3]	2,909	[3]	87,875	[4]	7,989	[4]
Net Current-Period Other Comprehensive Income (Loss), Net of Tax	80,766		2,909		87,875		7,989
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Income Tax Expense (Benefit)	50,079		1,974		54,449		5,235
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(178,757)		(42,160)		(178,757)		(42,160)		$ (90,720)	$ (131,608)	$ 7,450	$ 8,383
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(47,149)	[5]	(49,610)	[5]	(88,037)	[6]	(50,543)	[6]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0		0		0		0
Net Current-Period Other Comprehensive Income (Loss), Net of Tax	(47,149)		(49,610)		(88,037)		(50,543)
Accumulated Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive (Income) Loss, Net of Tax, Portion Attributable to Noncontrolling Interest	$ (76)		$ 60		$ (590)		$ 765

[1] During the 2015 period, this AOCI reclassification is a component of Net sales of $(279) (net of tax of $(105)) and Cost of goods sold of $120 (net of tax of $90); during the 2014 period, the reclassification is a component of Net sales of $(23) (net of tax of $(20)) and Cost of goods sold of $(61) (net of tax of $(42)). (See Note 15 - Derivatives for additional details.)

[2] During the 2015 period, this AOCI reclassification is a component of Net sales of $(800) (net of tax of $(429)) and Cost of goods sold of $733 (net of tax of $497); during the 2014 period, the reclassification is a component of Net sales of $27 (net of tax of $(10)) and Cost of goods sold of $175 (net of tax of $63). (See Note 15 - Derivatives for additional details.)

[3] This AOCI component is included in the computation of net periodic pension costs (net of tax of $50,079 and $1,974 during the three months ended September 30, 2015 and 2014, respectively). (See Note 13 - Retirement and Postretirement Benefit Plans for additional details.)

[4] This AOCI component is included in the computation of net periodic pension costs (net of tax of $54,449 and $5,235 during the nine months ended September 30, 2015 and 2014, respectively). (See Note 13 - Retirement and Postretirement Benefit Plans for additional details.)

[5] The Other comprehensive income (loss) before reclassifications excludes $(76) and $60 attributable to Non-controlling interests in the three months ended September 30, 2015 and 2014, respectively.

[6] The Other comprehensive income (loss) before reclassifications excludes $(590) and $765 attributable to Non-controlling interests in the nine months ended September 30, 2015 and 2014, respectively.