PROPERTY, PLANT AND EQUIPMENT (Schedule of Property, Plant and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 30, 2012
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 2,771,120	$ 2,749,580
Accumulated depreciation	(1,604,135)	(1,559,659)
PP&E, net	1,166,985	1,189,921
Land [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	65,234	63,788
Building [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,082,227	1,081,059
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,520,677	1,498,280
Autos and trucks [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	59,076	58,526
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 43,906	$ 47,927