Business Combinations (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions	Jul. 03, 2015	Jan. 02, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	$ 1,346.7	$ 1,355.1
Intangible Assets, Accumulated Amortization	(821.2)	(760.6)
Total	525.5	594.5
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	775.6	770.4
Intangible Assets, Accumulated Amortization	(489.0)	(445.4)
Total	286.6	325.0
Trade Names And Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	51.2	51.2
Intangible Assets, Accumulated Amortization	(36.8)	(33.9)
Total	14.4	17.3
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	441.0	455.0
Intangible Assets, Accumulated Amortization	(237.9)	(226.8)
Total	203.1	228.2
Distribution Rights And Other Intellectual Properties [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross Carrying Amount	78.9	78.5
Intangible Assets, Accumulated Amortization	(57.5)	(54.5)
Total	$ 21.4	$ 24.0