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		9 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) Recognized in OCI Before Reclassifications	$ (3.2)	$ 46.0	$ (24.7)	$ 0.6
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) Recognized in OCI Before Reclassifications	(21.1)	32.4	(40.1)	(11.8)
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	5.3	4.7	(25.3)	1.5
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	(5.8)	19.7	(8.4)	(16.4)
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	(2.7)	21.7	9.0	15.6
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	0.0	(0.1)	0.0	(0.1)
Designated as Hedging Instrument [Member] | Net Investment Hedging [Member] | Foreign Currency Contract - Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) Recognized in OCI Before Reclassifications			0.0	(0.1)
Gains/(Losses) Reclassified from AOCI to Earnings			0.0	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	(21.1)	32.4	(40.1)	(11.7)
Gains/(Losses) Reclassified from AOCI to Earnings	0.0	0.0	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	1.1	1.2	3.9	3.6
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	0.1	0.1	(0.5)	0.5
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	(9.9)	18.4	(19.7)	(8.6)
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	2.2	0.5	4.9	(1.2)
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	1.4	(1.3)	3.6	(4.5)
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	$ (0.5)	$ (0.3)	$ (7.3)