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Derivative Financial Instruments (Pretax Impact Of Undesignated Derivative Instruments On The Consolidated Statements Of Income) (Details) - USD ($) $ in Millions | 12 Months Ended
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Oct. 03, 2020 | Sep. 28, 2019 | Sep. 29, 2018
Cost of Sales [Member] |  |  |
Derivative [Line Items] |  |  |
Gain/(Loss) Recognized in Earnings | $ 8 | $ 26 | $ (33)
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Sales [Member] |  |  |
Derivative [Line Items] |  |  |
Gain/(Loss) Recognized in Earnings | 0 | (23) | 18
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member] | Cost of Sales [Member] |  |  |
Derivative [Line Items] |  |  |
Gain/(Loss) Recognized in Earnings | $ (103) | $ 2 | $ (33)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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