Retirement and Post Retirement Health Care Plans (Schedule Of Reconciliation Of Funded Status Of The Defined Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Change in Fair Value of Plan Assets:
Fair Value of Plan Assets at Beginning of Period	$ 230.2
Fair Value of Plan Assets at End of Period	478.9	$ 230.2
United States
Change in Fair Value of Plan Assets:
Employer Contributions	9.8	7.6	$ 8.9
International Plan
Change in Fair Value of Plan Assets:
Employer Contributions	5.7	5.5	10.6
Pension Plan
Change in Projected Benefit Obligation:
Obligation at Beginning of Period	298.4	282.8
Service Cost	1.2	2.0	6.2
Interest Cost	7.5	8.0	10.6
Actuarial (Gain) Loss	(1.2)	21.2
Less: Benefits Paid	19.7	15.9
Settlements	(1.9)	0.0
Foreign Currency Translation	(3.0)	0.3
Acquisitions	305.9	0.0
Obligation at End of Period	587.2	298.4	282.8
Change in Fair Value of Plan Assets:
Fair Value of Plan Assets at Beginning of Period	230.2	203.4
Actual Return on Plan Assets	33.7	33.7
Employer Contributions	5.7	8.5
Less: Benefits Paid	19.7	15.9
Settlements	(1.9)	0.0
Foreign Currency Translation	(1.3)	0.5
Acquisitions	232.2	0.0
Fair Value of Plan Assets at End of Period	478.9	230.2	203.4
Funded Status	(108.3)	(68.2)
Pension Plan \| United States
Change in Fair Value of Plan Assets:
Funded Status	(61.6)	(62.6)
Pension Plan \| International Plan
Change in Fair Value of Plan Assets:
Funded Status	(46.7)	(5.6)
Postretirement Health Coverage
Change in Projected Benefit Obligation:
Obligation at Beginning of Period	5.9	5.9
Interest Cost	0.1	0.2	0.3
Actuarial (Gain) Loss	(0.2)	0.1
Curtailment Gain	0.2	0.0
Participant Contributions	0.2	0.2
Less: Benefits Paid	0.5	0.5
Acquisitions	2.7	0.0
Obligation at End of Period	8.4	5.9	$ 5.9
Change in Fair Value of Plan Assets:
Employer Contributions	$ 0.3	$ 0.3

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive 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 of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.

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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 foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.

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

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Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement.

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Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract.

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