STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2021	Mar. 29, 2020
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total net sales	$ 3,273,425	$ 3,074,928
Cost of sales	(3,012,182)	(2,897,829)
Interest expense, net of capitalized interest	(30,334)	(32,688)
Miscellaneous, net	7,844	34,188
Income before income taxes	135,826	105,961
Tax expense	(35,358)	(38,512)
Net income	100,468	67,449
Amount Reclassified from Accumulated Other Comprehensive Loss
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Income before income taxes	(403)	(1,117)
Tax expense	167	93
Net income	(236)	(1,024)
Amount Reclassified from Accumulated Other Comprehensive Loss | Realized gain (loss) on settlement of derivatives classified as cash flow hedges
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Total net sales	278	0
Cost of sales	22	(742)
Interest expense, net of capitalized interest	(132)	0
Amount Reclassified from Accumulated Other Comprehensive Loss | Amortization of defined benefit pension and other postretirement plan actuarial losses
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Miscellaneous, net	$ (571)	$ (375)