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Business Combinations (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions | Mar. 30, 2018 | Dec. 29, 2017
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | $ 1,707.9 | $ 1,555.3 |
Intangible Assets, Accumulated Amortization | (1,241.7) | (1,190.5) |
Total | 466.2 | 364.8 | [1]
Developed Product Technology [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 1,006.7 | 915.3 |
Intangible Assets, Accumulated Amortization | (762.7) | (729.9) |
Total | 244.0 | 185.4 |
Trade Names And Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 64.8 | 58.7 |
Intangible Assets, Accumulated Amortization | (49.9) | (48.6) |
Total | 14.9 | 10.1 |
Customer Relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 564.8 | 512.1 |
Intangible Assets, Accumulated Amortization | (367.5) | (351.3) |
Total | 197.3 | 160.8 |
Distribution Rights And Other Intellectual Properties [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 71.6 | 69.2 |
Intangible Assets, Accumulated Amortization | (61.6) | (60.7) |
Total | $ 10.0 | $ 8.5 |
[1] | See Note 2 for a summary of adjustments

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