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Restructuring and Divestiture Charges - Charges Taken Related to Accrued Restructuring Actions (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended		12 Months Ended												9 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Sep. 29, 2012 Fiscal 2012 Charges [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Sep. 29, 2012 Fiscal 2012 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Sep. 28, 2013 Fiscal 2013 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Consolidation of Diagnostics Operations [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Closure of Indianapolis Facility [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Fiscal 2014 Actions [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Fiscal 2013 Actions [Member] Restructuring [Member]	Jun. 28, 2014 Fiscal 2014 Charges [Member] Other Operating Cost Reductions [Member] Restructuring [Member]
Restructuring Reserve [Roll Forward]
Fiscal restructuring charges			$ 17.5	$ 14.8	$ 1.8	$ 0	$ 0	$ 0.9	$ 32.7	$ 14.0	$ 5.7	$ 0	$ 11.3	$ 1.7	$ 36.4	$ 2.3	$ 0.7	$ 21.0	$ 0.9	$ 11.5
Non-cash impairment charges	(33.3)	(1.8)	(0.6)	(0.6)	0	0	0	0							(3.1)	0	0	0	0	(3.1)
Stock-based compensation			(3.5)	(3.5)	0	0	0	0	(7.9)	(6.3)	0	0	(1.6)	0	(6.5)	0	0	(6.5)	0	0
Severance payments			(2.6)	(2.4)	0	0	0	(0.2)	(21.5)	(13.1)	(3.1)	0	(4.4)	(0.9)	(24.4)	(0.9)	(4.0)	(7.7)	(5.9)	(5.9)
Other payments			(0.8)	0	0	0	0	(0.8)	(1.2)	0	(0.6)	0	0	(0.6)	(0.5)	0	(0.4)	0	0	(0.1)
Acquired and other			0.2	0.1	0	0	0	0.1
Balance			$ 10.2	$ 8.4	$ 1.8	$ 0	$ 0	$ 0	$ 12.3	$ 3.0	$ 3.8	$ 0	$ 5.3	$ 0.2	$ 14.2	$ 4.4	$ 0.1	$ 6.8	$ 0.3	$ 2.6

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- Definition

Represents restructuring accruals obtained through a business acquisition.

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Severance payments.

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- Definition

Payments to settle other restructuring charges.

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- Definition

Total restructuring charges under exit or disposal plan.

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- Definition

Share based compensation expense included other restructuring costs.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747



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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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