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		6 Months Ended
	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2019	Apr. 01, 2018
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) Recognized in OCI Before Reclassifications	$ (12.4)	$ (43.1)	$ (21.5)	$ (45.4)
Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) Recognized in OCI Before Reclassifications	2.9	(43.9)	(19.0)	(44.2)
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	(14.9)	(3.2)	(30.6)	(3.2)
Gains/(Losses) Reclassified from AOCI to Earnings	1.4	1.2	2.8	2.4
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	5.4	(33.7)	(2.6)	(36.1)
Gains/(Losses) Reclassified from AOCI to Earnings	1.3	(26.1)	(10.4)	(26.6)
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	(2.9)	(6.2)	11.7	(6.1)
Gains/(Losses) Reclassified from AOCI to Earnings	3.0	(3.5)	4.9	(4.9)
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	0.0	0.0	0.0
Gains/(Losses) Reclassified from AOCI to Earnings	(0.1)	(2.1)	(0.3)	(6.8)
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	0.0	0.0	(0.1)
Gains/(Losses) Reclassified from AOCI to Earnings	0.0	0.0	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	2.9	(43.9)	(19.0)	(44.1)
Gains/(Losses) Reclassified from AOCI to Earnings	$ 0.0	$ 0.0	$ 0.0	$ 0.0