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Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Millions | Jan. 01, 2021 | Jan. 03, 2020
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Other current liabilities | $ 12.3 |
Contingent consideration, undiscounted maximum payment | 18.3 |
Fair Value, Recurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred compensation plan assets | 41.9 | $ 36.2
Derivatives assets | 0.9 | 0.3
Total assets measured at fair value | 42.8 | 36.5
Deferred compensation plan liabilities | 41.9 | 36.2
Derivatives liabilities | 0.5 | 1.0
Contingent consideration liabilities | 12.3 | 19.9
Total liabilities measured at fair value | 54.7 | 57.1
Fair Value, Recurring | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred compensation plan assets | 41.9 | 36.2
Derivatives assets | 0.0 | 0.0
Total assets measured at fair value | 41.9 | 36.2
Deferred compensation plan liabilities | 41.9 | 36.2
Derivatives liabilities | 0.0 | 0.0
Contingent consideration liabilities | 0.0 | 0.0
Total liabilities measured at fair value | 41.9 | 36.2
Fair Value, Recurring | Level II |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred compensation plan assets | 0.0 | 0.0
Derivatives assets | 0.9 | 0.3
Total assets measured at fair value | 0.9 | 0.3
Deferred compensation plan liabilities | 0.0 | 0.0
Derivatives liabilities | 0.5 | 1.0
Contingent consideration liabilities | 0.0 | 0.0
Total liabilities measured at fair value | 0.5 | 1.0
Fair Value, Recurring | Level III |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred compensation plan assets | 0.0 | 0.0
Derivatives assets | 0.0 | 0.0
Total assets measured at fair value | 0.0 | 0.0
Deferred compensation plan liabilities | 0.0 | 0.0
Derivatives liabilities | 0.0 | 0.0
Contingent consideration liabilities | 12.3 | 19.9
Total liabilities measured at fair value | $ 12.3 | $ 19.9

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