Employee Retirement Plans Summary of the Plans' Net Periodic Pension Cost, Benefit Obligations, Funded Status, and Net Balance Sheet Position (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Net Periodic Pension Cost:
Curtailment loss	$ (14,682)	$ (865)	$ (906)
Change in Benefit Obligation:
Curtailment loss	14,682
Amounts recognized in balance sheet at year end:
Accrued pension benefits	(469,500)	(289,086)
Non US Plans
Net Periodic Pension Cost:
Service cost	2,581	2,457
Interest cost	25,966	33,490
Expected return on assets	(72,795)	(67,542)
Amortization of net loss	(3,449)	(721)
Amortization of prior service cost	2,577	2,560
Curtailment loss	(14,682)	(865)
Defined Benefit Plan, Net Periodic Benefit Cost	(23,540)	(27,449)
Change in Benefit Obligation:
Benefit obligation – beginning of year	1,501,616	1,377,575
Service cost	2,581	2,457
Prior service cost	2,309	0
Interest cost	25,966	33,490
Member contributions	312	313
Actuarial loss	186,945	102,377
Net benefit payments	(62,878)	(62,355)
Curtailment loss		865
Exchange effect	73,041	46,894
Benefit obligation – end of year	1,744,574	1,501,616	1,377,575
Change in Plan Assets:
Plan assets at fair value – beginning of year	1,231,181	1,141,381
Company contributions	5,745	5,934
Investment gain	69,824	107,368
Member contributions	312	313
Benefit payments and plan expenses	(62,878)	(62,355)
Exchange effect	52,332	38,540
Plan assets at fair value – end of year	1,296,516	1,231,181	1,141,381
Funded Status:
Unfunded benefit obligation	(448,058)	(270,435)
Amounts recognized in balance sheet at year end:
Accrued pension benefits	(448,058)	(270,435)
Pre-tax components in accumulated other comprehensive income at period end:
Net actuarial loss	479,554	270,116
Current year actuarial loss	211,494	69,228
Actuarial loss recognized	(3,841)	(798)
Prior service cost	3,335	0
Prior service cost recognized	(1,550)	(986)
Total amount recognized	(209,438)	(67,444)
Accumulated Benefit Obligation	$ 1,744,536	$ 1,501,589
Salary growth rate	0.80%	0.80%
Assumed discount rate	1.20%	2.00%
Expected return on assets	6.20%	6.20%
USPlans
Net Periodic Pension Cost:
Service cost	$ 0	$ 0
Interest cost	1,043	1,253
Expected return on assets	(999)	(868)
Amortization of net loss	(763)	(664)
Amortization of prior service cost	0	0
Curtailment loss	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	807	1,049
Change in Benefit Obligation:
Benefit obligation – beginning of year	35,395	31,559
Service cost	0	0
Prior service cost	0	0
Interest cost	1,043	1,253
Member contributions	0	0
Actuarial loss	4,146	4,173
Net benefit payments	(1,687)	(1,590)
Curtailment loss	0	0
Exchange effect	0	0
Benefit obligation – end of year	38,897	35,395	31,559
Change in Plan Assets:
Plan assets at fair value – beginning of year	16,744	14,634
Company contributions	1,587	1,191
Investment gain	811	2,509
Member contributions	0	0
Benefit payments and plan expenses	(1,687)	(1,590)
Exchange effect	0	0
Plan assets at fair value – end of year	17,455	16,744	$ 14,634
Funded Status:
Unfunded benefit obligation	(21,442)	(18,651)
Amounts recognized in balance sheet at year end:
Accrued pension benefits	(21,442)	(18,651)
Pre-tax components in accumulated other comprehensive income at period end:
Net actuarial loss	10,424	6,853
Current year actuarial loss	4,334	2,532
Actuarial loss recognized	(763)	(664)
Prior service cost	0	0
Prior service cost recognized	0	0
Total amount recognized	(3,571)	(1,868)
Accumulated Benefit Obligation	$ 38,897	$ 35,395
Assumed discount rate	2.20%	3.00%
Expected return on assets	6.00%	6.00%