STOCKHOLDERS' EQUITY (Schedule of Changes in Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jun. 25, 2017	Jul. 01, 2018	Jun. 25, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			$ 1,855,661	$ 2,086,132
Other comprehensive income (loss) before reclassifications			(32,685)	65,010
Amounts reclassified from accumulated other comprehensive income (loss) to net income			247	223
Impact of currency translation			(6)	20
Total other comprehensive income (loss), net of tax	$ (90,053)	$ 49,977	(32,444)	65,253
Balance, end of period	2,054,418	2,484,620	2,054,418	2,484,620
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			(31,140)	(329,858)
Total other comprehensive income (loss), net of tax			(32,444)	65,253
Balance, end of period	(63,584)	(264,605)	(63,584)	(264,605)
Gains (Losses) Related to Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			42,081	(265,714)
Other comprehensive income (loss) before reclassifications			(38,507)	67,096
Amounts reclassified from accumulated other comprehensive income (loss) to net income			0	0
Impact of currency translation			0	0
Total other comprehensive income (loss), net of tax			(38,507)	67,096
Balance, end of period	3,574	(198,618)	3,574	(198,618)
Unrealized Gains (Losses) on Derivative Financial Instruments Classified as Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			(1,848)	99
Other comprehensive income (loss) before reclassifications			(97)	698
Amounts reclassified from accumulated other comprehensive income (loss) to net income			472	(67)
Impact of currency translation			(6)	20
Total other comprehensive income (loss), net of tax			369	651
Balance, end of period	(1,479)	750	(1,479)	750
Losses Related to Pension and Other Postretirement Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			(71,434)	(64,243)
Other comprehensive income (loss) before reclassifications			4,987	(2,784)
Amounts reclassified from accumulated other comprehensive income (loss) to net income			455	290
Impact of currency translation			0	0
Total other comprehensive income (loss), net of tax			5,442	(2,494)
Balance, end of period	(65,992)	(66,737)	(65,992)	(66,737)
Unrealized Holding Gains on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, beginning of period			61	0
Other comprehensive income (loss) before reclassifications			932	0
Amounts reclassified from accumulated other comprehensive income (loss) to net income			(680)	0
Impact of currency translation			0	0
Total other comprehensive income (loss), net of tax			252	0
Balance, end of period	$ 313	$ 0	$ 313	$ 0