Retirement Plans (Defined Contribution Plan) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) contract	Dec. 25, 2020 USD ($) contract	Dec. 27, 2019 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Number of Life Insurance Contract Held in Rabbi Trust | contract	57	61
Foreign Plan
Defined Contribution Plan Disclosure [Line Items]
Deferred Compensation Plan Assets, Collateral For Plan Benefits	$ 7.9	$ 7.3
Defined Contribution Plan, 401 K [Member]
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of match	50.00%
Defined Contribution Plan, Cost	$ 22.2	$ 26.0	$ 21.9