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Derivative Financial Instruments (Derivative Gains and Losses Included in AOCI and Expected to be Reclassified into Earnings in 12 Months, Net of Tax) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Mar. 29, 2026	Sep. 28, 2025	Mar. 30, 2025	Mar. 29, 2026	Mar. 30, 2025
Cash Flow Hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains/(losses) on cash flow hedging instruments	$ 19.0		$ (6.6)	$ 14.8	$ 63.0
Cash Flow Hedges \| Coffee
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Expected to be Reclassified from AOCI into Earnings within 12 Months	$ 26.2
Outstanding Contract Remaining Maturity (Months)	9 months			9 months
Unrealized gains/(losses) on cash flow hedging instruments	$ 27.4	$ 23.3
Cash Flow Hedges \| Foreign currency - other
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Expected to be Reclassified from AOCI into Earnings within 12 Months	$ 17.6
Outstanding Contract Remaining Maturity (Months)	35 months			35 months
Unrealized gains/(losses) on cash flow hedging instruments	$ 28.1	19.0
Cash Flow Hedges \| Interest rates
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Expected to be Reclassified from AOCI into Earnings within 12 Months	$ (3.4)
Outstanding Contract Remaining Maturity (Months)	0 months			0 months
Unrealized gains/(losses) on cash flow hedging instruments	$ 0.4	(1.4)
Net Investment Hedges \| Cross-currency swaps
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Included in AOCI	$ 215.9	206.2		$ 215.9
Outstanding Contract Remaining Maturity (Months)	96 months			96 months
Net Investment Hedges \| Foreign currency - other
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Included in AOCI	$ 16.0	16.0		$ 16.0
Outstanding Contract Remaining Maturity (Months)	0 months			0 months
Net Investment Hedges \| Foreign currency debt
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Gains/(Losses) Included in AOCI	$ 135.2	$ 135.2		$ 135.2
Outstanding Contract Remaining Maturity (Months)	0 months			0 months