Fair Value Measurements (Schedule of Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - Recurring - USD ($) $ in Millions	Sep. 29, 2023	Dec. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets	$ 29.2	$ 31.5
Derivatives assets	0.1	18.0
Contingent consideration assets	1.0	3.1
Total assets measured at fair value	30.3	52.6
Deferred compensation plan liabilities	29.2	31.5
Derivatives liabilities	0.4	0.2
Total liabilities measured at fair value	29.6	31.7
(Level I)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation plan assets	29.2	31.5
Derivatives assets	0.0	0.0
Contingent consideration assets	0.0	0.0
Total assets measured at fair value	29.2	31.5
Deferred compensation plan liabilities	29.2	31.5
Derivatives liabilities	0.0	0.0
Total liabilities measured at fair value	29.2	31.5
(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	0.1	18.0
Contingent consideration assets	0.0	0.0
Total assets measured at fair value	0.1	18.0
Deferred compensation plan liabilities	0.0	0.0
Derivatives liabilities	0.4	0.2
Total liabilities measured at fair value	0.4	0.2
(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
Contingent consideration assets	1.0	3.1
Total assets measured at fair value	1.0	3.1
Deferred compensation plan liabilities	0.0	0.0
Derivatives liabilities	0.0	0.0
Total liabilities measured at fair value	$ 0.0	$ 0.0