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Derivative Financial Instruments (Pretax Gains and Losses on Derivative Contracts Designated as Hedging Instruments Recognized in OCI and Reclassifications from AOCI to Earnings) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 29, 2019 | Dec. 30, 2018
Cash Flow Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | $ 32.4 | $ (9.1)
Net Investment Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 23.7 | (21.9)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 20.0 | (15.7)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cross-Currency Swap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 6.2 | (8.0)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract - Other [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | (4.7) | 14.6
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Coffee Contracts [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 11.0 | 0.0
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Dairy Contracts [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | (0.1) | 0.0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Cross-Currency Swap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 10.7 | 0.0
Gains/(Losses) Reclassified from AOCI to Earnings | 3.3 | 0.0
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | ForeignExchangeYenDebt [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Recognized in OCI Before Reclassifications | 13.0 | (21.9)
Gains/(Losses) Reclassified from AOCI to Earnings | 0.0 | 0.0
Interest Expense [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | 0.8 | 1.4
Interest Expense [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cross-Currency Swap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | (0.2) | (0.4)
Interest and Other Income [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cross-Currency Swap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | 5.6 | (11.3)
Franchised Units Revenue [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract - Other [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | 1.7 | 1.4
Cost of Goods and Services Sold [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract - Other [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | (0.3) | 0.5
Cost of Goods and Services Sold [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Coffee Contracts [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | 0.0 | (0.2)
Cost of Goods and Services Sold [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Dairy Contracts [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gains/(Losses) Reclassified from AOCI to Earnings | $ 0.0 | $ 0.0

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