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Acquisitions (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Sep. 28, 2013 | Sep. 29, 2012 | Oct. 01, 2011
Business Acquisition [Line Items] |  |  |
Acquisitions, net of cash acquired | $ 106 | $ 0 | $ 0
Purchase price of goodwill | 1,902 | 1,891 | 1,892
Series of Individually Immaterial Business Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of businesses acquired | 2 |  |
Acquisitions, net of cash acquired | 106 |  |
Purchase price of property, plant and equipment | 50 |  |
Purchase price of intangible assets | 41 |  |
Purchase price of goodwill | 12 |  |
Shandong Tyson Xinchang Foods [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Transaction closed amount for purchase of minority partner intrerest |  |  | $ 66
Minority interest percentage purchased from exercise of put options |  |  | 40.00%

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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