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Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Millions | Jul. 01, 2017 | Sep. 24, 2016 | Jun. 25, 2016
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | $ 5,482.8 | $ 5,324.9 |
Accumulated Amortization | 2,647.0 | 2,681.5 |
Developed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 4,467.5 | 3,983.7 | $ 6.2
Accumulated Amortization | 2,107.5 | 1,991.6 |
In-process research and development |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 107.0 | 3.7 |
Accumulated Amortization | 0.0 | 0.0 |
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 552.2 | 1,098.9 |
Accumulated Amortization | 384.2 | 546.2 |
Trade names |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 310.2 | 236.2 |
Accumulated Amortization | 151.6 | 141.6 |
Noncompete Agreements [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 1.5 | 0.0 |
Accumulated Amortization | 0.1 | 0.0 |
Distribution agreement |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 42.0 | 0.0 |
Accumulated Amortization | 1.5 | 0.0 |
Business licenses |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Value | 2.4 | 2.4 |
Accumulated Amortization | $ 2.1 | $ 2.1 |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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