Segment Information (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. 30, 2022	Oct. 01, 2021	Sep. 30, 2022	Oct. 01, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	$ 122.4	$ 147.5	$ 414.2	$ 433.2
Unallocated general corporate expenses	(393.0)	(357.0)	(1,188.3)	(1,090.0)
Purchase accounting adjustments	(31.0)	(33.2)	(97.9)	(102.0)
Acquisition / divestiture items	(9.1)	(0.2)	(20.3)	(10.3)
Stock-based compensation / deferred compensation	(31.7)	(32.1)	(82.9)	(99.1)
Restructuring and other costs	(15.7)	(1.7)	(38.4)	(7.9)
Total non-operating (expense) income, net	(4.5)	9.2	63.8	23.3
Consolidated income before taxes	117.9	156.7	478.0	456.5
Operating segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Consolidated operating income	238.4	241.4	745.3	728.5
Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unallocated general corporate expenses	$ (28.5)	$ (26.7)	$ (91.6)	$ (76.0)