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Business Combinations (Schedule Of Intangible Assets) (Detail) - USD ($) $ in Millions | Sep. 28, 2018 | Dec. 29, 2017
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | $ 2,095.3 | $ 1,555.3 |
Intangible Assets, Accumulated Amortization | (1,315.3) | (1,190.5) |
Total | 780.0 | 364.8 | [1]
Developed Product Technology [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 1,218.8 | 915.3 |
Intangible Assets, Accumulated Amortization | (806.8) | (729.9) |
Total | 412.0 | 185.4 |
Trade Names And Trademarks [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 73.0 | 58.7 |
Intangible Assets, Accumulated Amortization | (52.2) | (48.6) |
Total | 20.8 | 10.1 |
Customer Relationships [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 717.2 | 512.1 |
Intangible Assets, Accumulated Amortization | (393.1) | (351.3) |
Total | 324.1 | 160.8 |
Distribution Rights And Other Intellectual Property [Member] |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible Assets, Gross Carrying Amount | 86.3 | 69.2 |
Intangible Assets, Accumulated Amortization | (63.2) | (60.7) |
Total | $ 23.1 | $ 8.5 |
[1] | See Note 2 for a summary of adjustments

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