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Other Intangible Assets and Goodwill (Finite-Lived Intangible Assets) (Details) - USD ($)
$ in Millions
Dec. 29, 2024
Sep. 29, 2024
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 1,211.3 $ 1,187.8
Accumulated amortization (1,120.3) (1,166.4)
Total estimated future amortization expense 91.0 21.4
Acquired and reacquired rights    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,020.9 995.5
Accumulated amortization (946.3) (995.5)
Total estimated future amortization expense 74.6 0.0
Acquired trade secrets and processes    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 27.6 27.6
Accumulated amortization (27.6) (27.6)
Total estimated future amortization expense 0.0 0.0
Trade names, trademarks and patents    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 130.4 130.4
Accumulated amortization (114.7) (110.0)
Total estimated future amortization expense 15.7 20.4
Licensing agreements    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 12.3 13.4
Accumulated amortization (11.6) (12.4)
Total estimated future amortization expense 0.7 1.0
Other finite-lived intangible assets    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 20.1 20.9
Accumulated amortization (20.1) (20.9)
Total estimated future amortization expense $ 0.0 $ 0.0