Business Combinations (Schedule Of Total Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2018	Dec. 29, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,092.7	$ 1,555.3
Accumulated Amortization	(1,348.4)	(1,190.5)
Total	744.3	364.8	[1]
Developed Product Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,220.3	915.3
Accumulated Amortization	(825.3)	(729.9)
Total	$ 395.0	185.4
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years
Trade Names And Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 72.9	58.7
Accumulated Amortization	(53.3)	(48.6)
Total	$ 19.6	10.1
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 715.1	512.1
Accumulated Amortization	(406.5)	(351.3)
Total	$ 308.6	160.8
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Distribution Rights And Other Intellectual Properties [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 84.4	69.2
Accumulated Amortization	(63.3)	(60.7)
Total	$ 21.1	$ 8.5
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	6 years

[1] See Note 2 for a summary of adjustments