Deferred Revenue And Remaining Performance Obligations (Schedule of Deferred Revenue and Performance Obligations) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Contract With Customer, Asset And Liability [Roll Forward]
Beginning balance of the period	$ 745.6	$ 685.2	$ 737.6	$ 631.8
Revenue recognized from prior year-end	(107.8)	(92.0)	(543.0)	(453.8)
Billings net of revenue recognized from current year and other	54.8	43.6	498.0	458.8
Ending balance of the period	$ 692.6	$ 636.8	$ 692.6	$ 636.8