PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 30, 2018
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 4,930,691	$ 4,841,046
Accumulated depreciation	(2,720,479)	(2,679,344)
PP&E, net	2,210,212	2,161,702
Land
Property, Plant and Equipment [Line Items]
PP&E, gross	197,582	196,769
Buildings
Property, Plant and Equipment [Line Items]
PP&E, gross	1,711,629	1,697,703
Machinery and equipment
Property, Plant and Equipment [Line Items]
PP&E, gross	2,636,922	2,618,213
Autos and trucks
Property, Plant and Equipment [Line Items]
PP&E, gross	61,538	59,195
Construction-in-progress
Property, Plant and Equipment [Line Items]
PP&E, gross	$ 323,020	$ 269,166

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

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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.

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