v3.26.1
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. 29, 2026
Sep. 28, 2025
Mar. 30, 2025
Mar. 29, 2026
Mar. 30, 2025
Cash Flow Hedges          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments $ 19.0   $ (6.6) $ 14.8 $ 63.0
Cash Flow Hedges | Coffee          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 27.4 $ 23.3      
Cash Flow Hedges | Foreign currency - other          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 28.1 19.0      
Cash Flow Hedges | Interest rates          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 0.4 (1.4)      
Net Investment Hedges          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on net investment hedging instruments 8.4   13.1 63.8 220.6
Net Investment Hedges | Cross-currency swaps          
Derivative Instruments, Gain (Loss) [Line Items]          
Derivatives used in Net Investment Hedge, Net of Tax 215.9 206.2   215.9  
Net Investment Hedges | Foreign currency - other          
Derivative Instruments, Gain (Loss) [Line Items]          
Derivatives used in Net Investment Hedge, Net of Tax 16.0 16.0   16.0  
Net Investment Hedges | Foreign currency debt          
Derivative Instruments, Gain (Loss) [Line Items]          
Derivatives used in Net Investment Hedge, Net of Tax 135.2 $ 135.2   135.2  
Designated Derivative Instruments: | Cash Flow Hedges | Coffee          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 1.6   0.6 (12.6) 13.4
Gains/(Losses) Reclassified from AOCI to Earnings (17.8)   17.4 (17.6) 45.1
Designated Derivative Instruments: | Cash Flow Hedges | Cross-currency swaps          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 0.0   0.0 0.0 0.9
Designated Derivative Instruments: | Cash Flow Hedges | Dairy          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 0.0   (0.2) 0.0 (1.3)
Gains/(Losses) Reclassified from AOCI to Earnings 0.0   0.0 0.0 1.4
Designated Derivative Instruments: | Cash Flow Hedges | Foreign currency - other          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 17.4   (7.0) 27.4 50.0
Designated Derivative Instruments: | Cash Flow Hedges | Interest rates          
Derivative Instruments, Gain (Loss) [Line Items]          
Unrealized gains/(losses) on cash flow hedging instruments 0.0   0.0 0.0 0.0
Gains/(Losses) Reclassified from AOCI to Earnings (1.2)   (1.0) (2.4) (2.0)
Designated Derivative Instruments: | Net Investment Hedges | Cross-currency swaps          
Derivative Instruments, Gain (Loss) [Line Items]          
Gains/(Losses) Reclassified from AOCI to Earnings 24.1   27.7 50.8 55.4
Unrealized gains/(losses) on net investment hedging instruments 8.4   13.1 63.8 220.6
Product and distribution costs | Designated Derivative Instruments: | Cash Flow Hedges | Foreign currency - other          
Derivative Instruments, Gain (Loss) [Line Items]          
Gains/(Losses) Reclassified from AOCI to Earnings 1.7   2.6 3.3 4.3
Interest and Other Income, net | Designated Derivative Instruments: | Cash Flow Hedges | Cross-currency swaps          
Derivative Instruments, Gain (Loss) [Line Items]          
Gains/(Losses) Reclassified from AOCI to Earnings 0.0   0.6 0.0 1.4
Licensed stores revenue | Designated Derivative Instruments: | Cash Flow Hedges | Foreign currency - other          
Derivative Instruments, Gain (Loss) [Line Items]          
Gains/(Losses) Reclassified from AOCI to Earnings $ 5.7   $ 7.4 $ 12.4 $ 16.2