Shareholders' Equity (Schedule Of Share-Based Compensation Activity) (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash Received from Stock Option Exercises	$ 2.6	$ 0.2	$ 0.3
SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total Intrinsic Value of Share-Based Incentive Awards Exercised	11.3	6.7	11.7
Cash Received from Stock Option Exercises	2.6	0.2	0.1
Income Tax Benefit from the Exercise of Stock Options	2.7	0.0	0.0
Total Fair Value of Share-Based Incentive Awards Vested	$ 4.5	$ 2.1	$ 5.4

Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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