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Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Millions	Jun. 27, 2015	Sep. 27, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 5,324.3	$ 5,325.0
Accumulated Amortization	2,198.9	1,891.4
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,979.2	3,965.6
Accumulated Amortization	1,624.6	1,399.4
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3.7	17.9
Accumulated Amortization	0.0	0.0
Customer relationships and contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,102.4	1,102.4
Accumulated Amortization	447.3	384.7
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	236.4	236.5
Accumulated Amortization	124.9	105.3
Business licenses
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	2.6	2.6
Accumulated Amortization	$ 2.1	$ 2.0

X

- 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=26713463&loc=d3e16323-109275

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- Definition

Amount before 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



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-Section 50



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