Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Sep. 28, 2018
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5,710	$ 7,171	$ 8,269
Interest cost	39,469	52,627	49,324
Expected return on plan assets	(93,407)	(82,274)	(83,328)
Actuarial loss	7,578	7,854	6,655
Prior service cost	1,405	1,263	(257)
Net pension cost, before special items	(39,245)	(13,359)	(19,337)
Curtailment expense/Settlement (gain) loss	1,341	1,933	1,268
Total net periodic pension (income) cost recognized	(37,904)	(11,426)	(18,069)
Total net periodic pension (income) cost recognized from Discontinued Operations	0	2,282	3,606
Total net periodic pension (income) cost recognized from Continuing Operations	(37,904)	(13,708)	(21,675)
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	409	2,784	4,765
Interest cost	12,673	16,697	13,778
Expected return on plan assets	(17,670)	(21,508)	(19,663)
Actuarial loss	3,518	3,026	3,845
Prior service cost	323	0	0
Net pension cost, before special items	(747)	999	2,725
Curtailment expense/Settlement (gain) loss	3,436	(35,020)	4,146
Total net periodic pension (income) cost recognized	$ 2,689	$ (34,021)	$ 6,871