PROPERTY, PLANT AND EQUIPMENT (Schedule of Property, Plant and Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 2,902,676us-gaap_PropertyPlantAndEquipmentGross	$ 2,873,069us-gaap_PropertyPlantAndEquipmentGross
Accumulated depreciation	(1,721,268)	(1,690,274)
PP&E, net	1,181,408us-gaap_PropertyPlantAndEquipmentNet	1,182,795us-gaap_PropertyPlantAndEquipmentNet
Land [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	66,959	66,798
Buildings [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,090,989	1,086,690
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	1,576,161	1,537,241
Autos and trucks [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	51,338	52,639
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 117,229	$ 129,701

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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