Intangible Assets and Goodwill (Schedule Of Intangible Assets) (Details) - USD ($) $ in Millions	Sep. 27, 2024	Dec. 29, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 2,158.9	$ 2,314.9
Accumulated amortization	(1,055.8)	(1,071.4)
Total	1,103.1	1,243.5
Developed product technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	874.9	908.5
Accumulated amortization	(587.9)	(554.1)
Total	287.0	354.4
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,242.7	1,358.4
Accumulated amortization	(428.6)	(474.5)
Total	814.1	883.9
Trade names and other intellectual properties
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	41.3	48.0
Accumulated amortization	(39.3)	(42.8)
Total	$ 2.0	$ 5.2