Employee Retirement Plans Summary of the Plans' Net Periodic Pension Cost, Benefit Obligations, Funded Status, and Net Balance Sheet Position (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Benefit Cost, Other Components	$ (31,728)	$ (38,114)	$ (31,728)	$ (27,207)
Change in Benefit Obligation:
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		906
Amounts recognized in balance sheet at year end:
Accrued pension benefits	$ (334,511)	(253,119)	(334,511)
Pre-tax components in accumulated other comprehensive income at period end:
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax		(6,900)
Non US Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, benefit obligation, prior service cost		$ 53,586	$ 0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	0.60%	0.80%	0.60%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		100.00%
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%	100.00%
Net Periodic Pension Cost:
Service cost		$ 3,754	$ 4,013
Interest cost		32,173	32,748
Expected return on assets		(75,017)	(70,630)
Amortization of net (gain) loss		(4,056)	(3,073)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)		437	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax		(437)	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment		(906)	(3,305)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		(655)	(313)
Defined Benefit Plan, Net Periodic Benefit Cost		(34,346)	(27,804)
Change in Benefit Obligation:
Benefit obligation – beginning of year		1,615,244	1,478,493
Service cost		3,754	4,013
Interest cost		32,173	32,748
Member contributions		290	345
Actuarial (gain) loss		(163,746)	21,058
Pension settlement gain		(873)	(4,017)
Defined Benefit Plan, Plan Assets, Payment for Settlement		(161)	(3,254)
Net benefit payments		(72,095)	(65,160)
Benefit obligation – end of year	$ 1,615,244	1,377,575	1,615,244	1,478,493
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment			3,305
Change in Plan Assets:
Plan assets at fair value – beginning of year		1,296,539	1,173,865
Company contributions		4,889	3,062
Investment (loss) gain		(12,600)	72,342
Member contributions		290	345
Benefit payments and plan expenses		(72,095)	(65,160)
Exchange effect		(75,481)	115,339
Plan assets at fair value – end of year	1,296,539	1,141,381	1,296,539	1,173,865
Funded Status:
Unfunded benefit obligation	(318,705)	(236,194)	(318,705)
Amounts recognized in balance sheet at year end:
Accrued pension benefits	(318,705)	(236,194)	(318,705)
Pre-tax components in accumulated other comprehensive income at period end:
Net actuarial loss	243,315	202,672	243,315
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		(88,992)	44,316
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax		(4,741)	(7,041)
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax		(713)	(763)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax		654	313
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax		40,643	(36,825)
Accumulated Benefit Obligation	$ 1,615,157	$ 1,377,532	$ 1,615,157
Assumed discount rate	2.30%	2.70%	2.30%
Expected return on assets		6.20%	6.20%
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		$ (91,664)	$ 144,459
USPlans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, benefit obligation, prior service cost		$ 0	$ 0
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		100.00%
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%	100.00%
Net Periodic Pension Cost:
Service cost		$ 365	$ 402
Interest cost		1,082	1,240
Expected return on assets		(967)	(821)
Amortization of net (gain) loss		129	330
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)		0	0
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax		0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment		0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		0	0
Defined Benefit Plan, Net Periodic Benefit Cost		351	491
Change in Benefit Obligation:
Benefit obligation – beginning of year		31,908	31,949
Service cost		365	402
Interest cost		1,082	1,240
Member contributions		0	0
Actuarial (gain) loss		(850)	(760)
Pension settlement gain		0	0
Defined Benefit Plan, Plan Assets, Payment for Settlement		0	0
Net benefit payments		(946)	(923)
Benefit obligation – end of year	$ 31,908	31,559	31,908	31,949
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		0	0
Change in Plan Assets:
Plan assets at fair value – beginning of year		16,102	13,589
Company contributions		877	1,476
Investment (loss) gain		(1,399)	1,960
Member contributions		0	0
Benefit payments and plan expenses		(946)	(923)
Exchange effect		0	0
Plan assets at fair value – end of year	16,102	14,634	16,102	$ 13,589
Funded Status:
Unfunded benefit obligation	(15,806)	(16,925)	(15,806)
Amounts recognized in balance sheet at year end:
Accrued pension benefits	(15,806)	(16,925)	(15,806)
Pre-tax components in accumulated other comprehensive income at period end:
Net actuarial loss	3,340	4,985	3,340
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax		1,516	(1,898)
Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax		129	330
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax		0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax		0	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax		(1,645)	1,568
Accumulated Benefit Obligation	$ 31,908	$ 31,559	$ 31,908
Assumed discount rate	3.50%	4.10%	3.50%
Expected return on assets		6.00%	6.00%
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)		$ 0	$ 0
Money Market Instruments | Non US Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		32.00%
Defined Benefit Plan, Actual Plan Asset Allocations	12.00%	9.00%	12.00%
Money Market Instruments | USPlans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		4.00%
Defined Benefit Plan, Actual Plan Asset Allocations	3.00%	1.00%	3.00%
Other (real estate & commodities) | Non US Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		13.00%
Defined Benefit Plan, Actual Plan Asset Allocations	11.00%	14.00%	11.00%
Other (real estate & commodities) | USPlans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		8.00%
Defined Benefit Plan, Actual Plan Asset Allocations	7.00%	8.00%	7.00%
Cash and Cash Equivalents | Non US Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		0.00%
Defined Benefit Plan, Actual Plan Asset Allocations	3.00%	2.00%	3.00%