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Derivative Financial Instruments (Pretax Impact Of Undesignated Derivative Instruments On The Consolidated Statements Of Income) (Details) - Undesignated - USD ($) $ in Millions | 3 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017
Derivative [Line Items] |  |
Gain/(Loss) Recognized in Earnings | $ 4 | $ (13)
Commodity contracts | Sales |  |
Derivative [Line Items] |  |
Gain/(Loss) Recognized in Earnings | 1 | 9
Commodity contracts | Cost of Sales |  |
Derivative [Line Items] |  |
Gain/(Loss) Recognized in Earnings | 3 | (22)
Foreign exchange contracts | Other income/expense |  |
Derivative [Line Items] |  |
Gain/(Loss) Recognized in Earnings | $ 0 | $ 0

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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=109980867&loc=SL5618551-113959 + Details
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