Employee Retirement Age

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Defined Benefit Plan, Pension Plan, Employee Retirement Age, Option Two

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Defined Benefit Plan, Pension Plan, Employee Service Period, Option

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Employee Service Period

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Number of major defined benefit plans which cover non-union employees.

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Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan.

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Amount of transition asset (obligation) recognized in net periodic benefit (cost) credit of defined benefit plan.

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- Definition

Amount of increase (decrease) in plan assets of defined benefit plan from assets transferred into (from) plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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- Definition

Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cost for defined contribution plan.

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Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.

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Amount of noncash expense (reversal of expense) for pension benefits. Excludes other postretirement benefits.

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Pension, Postretirement and Postemployment Benefits - Narrative (Details) $ in Thousands	1 Months Ended			12 Months Ended
	Feb. 29, 2020 USD ($)	Dec. 29, 2019 USD ($)	May 31, 2019 USD ($)	Dec. 27, 2020 USD ($) defined_benefit_pension_plan	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, cost				$ 38,400	$ 35,100	$ 32,300
Defined benefit plans, number of major plans covering non-union employees \| defined_benefit_pension_plan				2
Settlements paid		$ 185	$ 110,777	$ 0	110,962	0
Benefit liabilties				$ 14,796
Employee retirement age, option one				65
Employee service period, option one				5 years
Employee retirement age, option two				55
Employee service period, option two				10 years
Unrecognized gain (loss) in pension and post retirement plans				$ 19,346
Amortization				(35)
2026-2030				16,427
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension expense				44,700	48,400	41,900
Transfers	$ 19,500
Settlements paid			$ 110,777	185
2021				3,287
2022				3,215
2023				3,265
2024				3,197
2025				3,254
2026-2030				14,778
Foreign plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension expense				3,502	2,113	2,392
Projected benefit obligation		112,882		128,162	112,882
Fair value of plan assets		84,252		95,244	84,252
Defined benefit pension plans and post retirement plan				1,720
Unrecognized net losses				2
2021				2,111
2022				2,509
2023				2,655
2024				2,778
2025				2,934
U.S. Facilities \| Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Excess assets for U.S. Pension Plan				20,234
Transfers				0	(20,235)
Projected benefit obligation		30,971		46,032	30,971	395,718
Fair value of plan assets		$ 0		0	$ 0	$ 357,224
Unfunded Plan \| Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit obligations in the amount				$ 46,032