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Summary of Significant Accounting Policies - Supplemental Cash Flow Statement Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Accounting Policies [Abstract]
Cash paid during the period for income taxes	$ 231.8	$ 79.9	$ 166.6
Cash paid during the period for interest	155.7	192.8	55.0
Non-Cash Investing Activities:
Fair value of stock options assumed in the Gen-Probe acquisition	0	0	2.7
Non-Cash Financing Activities:
Fair value of contingent consideration at acquisition	0	0.5	0
Deferred payments for acquisitions	$ 0	$ 0	$ 1.7

X

- Definition

Represents the amount of the purchase price to acquire a business not yet paid to the former shareholders of the acquired entity and is deferred for a period of time.

+ References

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- Definition

Aggregate fair value as of the acquisition date of potential payments under the contingent consideration arrangement, including cash and shares as applicable.

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- Definition

Represents fair value of stock options assumed attributable to pre-combination services, which is recorded as part of the cost to acquire an entity.

+ References

No definition available.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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The amount of cash paid for interest during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586



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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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