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

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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- 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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- Definition

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 Millions		1 Months Ended		12 Months Ended
	Jan. 01, 2020	Feb. 29, 2020 USD ($)	May 31, 2019 USD ($)	Dec. 26, 2021 USD ($) defined_benefit_pension_plan	Dec. 27, 2020 USD ($)	Dec. 29, 2019 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, cost				$ 42.7	$ 38.4	$ 35.1
Defined benefit plans, number of major plans covering non-union employees \| defined_benefit_pension_plan				2
Settlements paid				$ 0.0	0.0	111.0
Benefit liabilities				14.8
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				17.1
2027-2031				16.7
Foreign plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension expense				4.0	3.5	2.1
Projected benefit obligation				121.6	128.2
Fair value of plan assets				94.8	95.2
Defined benefit pension plans and post retirement plan				1.2
2022				2.3
2023				2.5
2024				2.6
2025				2.7
2026				3.0
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension expense				49.3	44.7	48.4
Transfers		$ 19.5
Settlements paid			$ 110.8			0.2
2022				3.2
2023				3.3
2024				3.2
2025				3.3
2026				3.1
2027-2031				14.0
Pension \| Unfunded Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit obligations in the amount				41.6
Pension \| UNITED STATES
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Excess assets for U.S. Pension Plan				20.2
Projected benefit obligation				41.6	46.0	30.9
Fair value of plan assets				$ 0.0	$ 0.0	$ 0.0