CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (92,217)	$ 195,631	$ (22,522)	$ 323,576
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	21,443	11,270	(13,012)	11,601
Derivative financial instruments	(6,309)	(11,923)	(26,154)	(12,364)
Pension and postretirement benefit plans	11,958	7,743	23,917	15,486
Total other comprehensive loss, net of tax	27,092	7,090	(15,249)	14,723
Comprehensive (loss) income	$ (65,125)	$ 202,721	$ (37,771)	$ 338,299