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	9 Months Ended
Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	$ 116.4	$ 121.3	$ 287.2	$ 351.9
Unallocated general corporate expenses	(459.2)	(468.9)	(1,427.9)	(1,403.6)
Amortization of purchased intangible assets	(45.4)	(58.9)	(154.4)	(155.7)
Acquisition / divestiture items	(17.4)	(22.0)	(75.2)	(55.5)
Stock-based compensation / deferred compensation	(38.1)	(37.9)	(115.0)	(115.4)
Restructuring and other costs	(7.5)	(10.9)	(21.8)	(29.6)
Total non-operating (expense) income, net	(43.3)	(41.9)	1,620.9	(54.4)
Consolidated income before taxes	73.1	79.4	1,908.1	297.5
Operating segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	253.7	276.4	739.8	794.5
Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unallocated general corporate expenses	$ (28.9)	$ (25.4)	$ (86.2)	$ (86.4)

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