Goodwill and Intangible Assets (Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years) (Details) $ in Millions	Mar. 27, 2020 USD ($)
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	$ 20.5
2020	18.0
2021	5.1
2022	1.1
2023	1.1
Thereafter	3.7
Cost of sales [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	9.6
2020	2.7
2021	0.1
2022	0.1
2023	0.1
Thereafter	1.8
Operating Expense [Member]
Expected Annual Amortization Expense related to intangible assets for the next five years [Line Items]
Remaining 2019	10.9
2020	15.3
2021	5.0
2022	1.0
2023	1.0
Thereafter	$ 1.9