Financial Instruments and Fair Value Measurements (Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Sep. 27, 2024	Dec. 29, 2023
Assets:
Cash Flow Hedge Derivative Instrument Assets at Fair Value	$ 4.3	$ 12.9
Other Assets, Fair Value Disclosure	30.8	28.9
Assets, Fair Value Disclosure	60.0	85.1
Level 1 | Indemnification Agreement
Liabilities:
Restricted Cash and Cash Equivalents	65.5	80.7
Recurring
Assets:
Rabbi Trust Investments, Fair Value Disclosure	24.9	43.3
Liabilities:
Deferred Compensation Liability, Fair Value	21.4	21.0
Contingent consideration and acquired contingent liabilities	17.9	14.7
Total liabilities at fair value	51.7	50.8
Derivative Liability	12.4	15.1
Recurring | Level 1
Assets:
Rabbi Trust Investments, Fair Value Disclosure	16.5	29.1
Cash Flow Hedge Derivative Instrument Assets at Fair Value	0.0	0.0
Other Assets, Fair Value Disclosure	30.8	28.9
Assets, Fair Value Disclosure	47.3	58.0
Liabilities:
Deferred Compensation Liability, Fair Value	0.0	0.0
Contingent consideration and acquired contingent liabilities	0.0	0.0
Total liabilities at fair value	0.0	0.0
Derivative Liability	0.0	0.0
Recurring | Level 2
Assets:
Rabbi Trust Investments, Fair Value Disclosure	8.4	14.2
Cash Flow Hedge Derivative Instrument Assets at Fair Value	4.3	12.9
Other Assets, Fair Value Disclosure	0.0	0.0
Assets, Fair Value Disclosure	12.7	27.1
Liabilities:
Deferred Compensation Liability, Fair Value	21.4	21.0
Contingent consideration and acquired contingent liabilities	0.0	0.0
Total liabilities at fair value	21.4	21.0
Derivative Liability	0.0	0.0
Recurring | Level 3
Assets:
Rabbi Trust Investments, Fair Value Disclosure	0.0	0.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	0.0	0.0
Other Assets, Fair Value Disclosure	0.0	0.0
Assets, Fair Value Disclosure	0.0	0.0
Liabilities:
Deferred Compensation Liability, Fair Value	0.0	0.0
Contingent consideration and acquired contingent liabilities	17.9	14.7
Total liabilities at fair value	30.3	29.8
Derivative Liability	$ 12.4	$ 15.1