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		12 Months Ended
		Oct. 01, 2023	Oct. 02, 2022	Oct. 03, 2021
Foreign Currency Contract - Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net
Coffee Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net
Dairy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net
Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains/(Losses) Included in AOCI		$ (149.4)	$ 259.5	$ 283.8
Net Investment Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax		73.2	229.0	63.1
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains/(Losses) Included in AOCI		0.3	50.3	56.1
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Cross-Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains/(Losses) Included in AOCI		4.9	24.8	13.7
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Currency Contract - Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains/(Losses) Included in AOCI		9.4	103.9	(10.0)
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		110.5	126.2	(3.5)
Net Gains/(Losses) Included in AOCI		(152.9)	76.9	223.5
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Dairy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Gains/(Losses) Included in AOCI		(11.1)	3.6	0.5
Designated as Hedging Instrument [Member] | Net Investment Hedges [Member] | Cross-Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax	[1]	54.1	53.5	20.5
Gains/(Losses) Reclassified from AOCI to Earnings	[1]	27.4	14.3	13.4
Designated as Hedging Instrument [Member] | Net Investment Hedges [Member] | ForeignExchangeYenDebt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax		19.1	175.5	42.6
Gains/(Losses) Reclassified from AOCI to Earnings		0.0	0.0	0.0
Interest and Other Income [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		$ 0.0	$ 0.0	$ (3.6)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net
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		$ 0.3	$ 39.4	$ 12.7
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net
Interest and Other Income [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		$ 0.2	$ 13.7	$ 0.0
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net	Amounts Reclassified from AOCI, Interest income and other, net
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		$ 1.4	$ (2.0)	$ (1.8)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest Expense	Interest Expense	Interest Expense
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		$ 3.1	$ (6.9)	$ 1.9
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest Expense	Interest Expense	Interest Expense
Interest Expense [Member] | Designated as Hedging Instrument [Member] | Net Investment Hedges [Member] | Cross-Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest Expense	Interest Expense	Interest Expense
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		$ 23.6	$ 22.0	$ 1.8
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Revenues	Revenues	Revenues
Product and Distribution Costs | 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		$ 6.7	$ (2.3)	$ (7.3)
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Product and distribution costs	Product and distribution costs	Product and distribution costs
Product and Distribution Costs | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Coffee Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Product and distribution costs	Product and distribution costs	Product and distribution costs
Product and Distribution Costs | 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		$ (12.3)	$ 6.5	$ 1.7
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Product and distribution costs	Product and distribution costs	Product and distribution costs

[1] Gains and losses recognized in earnings relate to components excluded from the assessment of effectiveness.