Segment Information (Schedule of Reconciliation Of Our Condensed Consolidated Segment Operating Income To Condensed Consolidated Income Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	$ 109.2	$ 137.0
Unallocated general corporate expenses	(484.4)	(423.8)
Amortization of purchased intangible assets	(54.5)	(34.7)
Acquisition / divestiture items	(23.9)	(7.0)
Stock-based compensation / deferred compensation	(38.8)	(35.4)
Restructuring and other costs	(8.0)	(12.0)
Total non-operating (expense) income, net	(36.2)	23.6
Consolidated income before taxes	73.0	160.6
Operating segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	261.3	253.1
Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unallocated general corporate expenses	$ (26.9)	$ (27.0)