Debt (Narrative) (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended
Jul. 01, 2015	Jun. 28, 2015	Jun. 28, 2015	Sep. 28, 2014
Current Portion of Long-Term Debt		$ 549.8	$ 549.8	$ 0.0
Long-term debt covenant compliance			The indentures under which the above notes were issued also require us to maintain compliance with certain covenants, including limits on future liens and sale and leaseback transactions on certain material properties. As of June 28, 2015, we were in compliance with all applicable covenants.
Two Point Seven Percentage Senior Notes [Member]
Debt Instrument, Issuance		Jun. 01, 2015
Debt Instrument, Face Value		$ 500.0	$ 500.0	0.0
Stated Interest Rate		2.70%	2.70%
Debt Instrument, Maturity		Jun. 15, 2022
Four Point Three Percentage Senior Notes [Member]
Debt Instrument, Issuance		Jun. 01, 2015
Debt Instrument, Face Value		$ 350.0	$ 350.0	0.0
Stated Interest Rate		4.30%	4.30%
Debt Instrument, Maturity		Jun. 15, 2045
Six Point Two Five Percentage Senior Notes [Member]
Debt Instrument, Face Value		$ 550.0	$ 550.0	$ 550.0
Stated Interest Rate		6.25%	6.25%
Current Portion of Long-Term Debt		$ 550.0	$ 550.0
Six Point Two Five Percentage Senior Notes [Member] \| Subsequent Event [Member]
Stated Interest Rate	6.25%
Debt extinguishment amount	$ 550.0

States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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Face (par) amount of debt instrument at time of issuance.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Gross amount of debt extinguished.

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No definition available.

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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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