(Schedule of Fair Value of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Dec. 27, 2024	Dec. 29, 2023	Nov. 14, 2023
Assets:
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued and other current liabilities
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued and other current liabilities
Liabilities:
Cash Flow Hedge Derivative Instrument Assets at Fair Value	$ 5.3	$ 12.9
Fair Value, Measurements, Recurring
Assets:
Debt and equity securities held in rabbi trusts	25.4	43.3
Other Assets, Fair Value Disclosure	12.0	28.9
Total assets at fair value	42.7	85.1
Derivative Liability	0.0	15.1
Liabilities:
Deferred compensation liabilities	22.5	21.0
Contingent consideration	17.5	14.7	$ 15.0
Total liabilities at fair value	40.0	50.8
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Debt and equity securities held in rabbi trusts	17.4	29.1
Other Assets, Fair Value Disclosure	12.0	28.9
Total assets at fair value	29.4	58.0
Derivative Liability	0.0	0.0
Liabilities:
Deferred compensation liabilities	0.0	0.0
Contingent consideration	0.0	0.0
Total liabilities at fair value	0.0	0.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	0.0	0.0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets:
Debt and equity securities held in rabbi trusts	8.0	14.2
Other Assets, Fair Value Disclosure	0.0	0.0
Total assets at fair value	13.3	27.1
Derivative Liability	0.0	0.0
Liabilities:
Deferred compensation liabilities	22.5	21.0
Contingent consideration	0.0	0.0
Total liabilities at fair value	22.5	21.0
Cash Flow Hedge Derivative Instrument Assets at Fair Value	5.3	12.9
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	0.0	0.0
Other Assets, Fair Value Disclosure	0.0	0.0
Total assets at fair value	0.0	0.0
Derivative Liability	0.0	15.1
Liabilities:
Deferred compensation liabilities	0.0	0.0
Contingent consideration	17.5	14.7
Total liabilities at fair value	17.5	29.8
Cash Flow Hedge Derivative Instrument Assets at Fair Value	$ 0.0	$ 0.0