STOCKHOLDERS' EQUITY (Schedule of Reclassification from Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Cost of sales	$ 2,704,164	$ 2,475,221	$ 5,601,993	$ 4,980,957
Interest income	(1,158)	(3,444)	(2,848)	(6,784)
Miscellaneous, net	45	(1,513)	34,233	(1,156)
Income (loss) before income taxes	(9,356)	245,627	96,605	350,168
Tax benefit	2,956	(75,547)	(35,556)	(95,963)
Net income (loss)	(6,400)	170,080	$ 61,049	$ 254,205
Amount Reclassified from Accumulated Other Comprehensive Loss
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Income (loss) before income taxes	(1,319)	(176)
Tax benefit	184	84
Net income (loss)	(1,135)	(92)
Amount Reclassified from Accumulated Other Comprehensive Loss | Realized gain (loss) on settlement of foreign currency derivatives classified as cash flow hedges
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Cost of sales	(582)	173
Interest income	2	0
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	12	307
Amount Reclassified from Accumulated Other Comprehensive Loss | Union Plan | Amortization of defined benefit pension and other postretirement plan actuarial losses
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Miscellaneous, net	(48)	(36)
Amount Reclassified from Accumulated Other Comprehensive Loss | Legacy Gold Kits Plans | Amortization of defined benefit pension and other postretirement plan actuarial losses
Amortization of defined benefit pension and other postretirement plan actuarial losses:
Miscellaneous, net	$ (703)	$ (620)