STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Net sales	$ 3,827,566	$ 3,075,121	$ 10,738,689	$ 8,974,072
Cost of sales	3,455,723	2,761,279	9,725,362	8,363,272
Interest expense, net of capitalized interest	(29,833)	(30,564)	(110,818)	(95,575)
Interest income	1,244	1,763	4,452	4,611
Miscellaneous, net	1,391	(360)	10,005	33,873
Tax expense	(30,385)	(22,344)	(55,931)	(57,900)
Net income (loss)	$ 60,835	$ 33,691	(5,200)	94,740
Amount Reclassified from Accumulated Other Comprehensive Loss
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Income before income taxes			(422)	(70)
Tax expense			483	277
Net income (loss)			61	207
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:
Net sales			746	1,452
Cost of sales			860	(314)
Interest expense, net of capitalized interest			(460)	(99)
Amount Reclassified from Accumulated Other Comprehensive Loss | Realized gain on sale of securities
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Interest income			0	18
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			$ (1,568)	$ (1,127)