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Derivative and Financial Instruments (Notional Amounts of Outstanding Derivative Contracts) (Details) - USD ($) $ in Millions | Mar. 28, 2021 | Sep. 27, 2020
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Coffee Contracts [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 210 | $ 63
Cross-Currency Swap [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 838 | 870
Dairy Contracts [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 18 | 61
Diesel and Other Contracts [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 12 | 5
Foreign Currency Contract - Other [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 1,183 | 1,140
Interest Rate Contract [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,750 | $ 1,750

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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