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Other Intangible Assets and Goodwill (Finite-Lived Intangible Assets) (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Oct. 01, 2023
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 1,135.4 $ 1,149.3
Accumulated amortization (1,109.2) (1,108.2)
Total estimated future amortization expense 26.2 41.1
Acquired and reacquired rights    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 945.1 957.6
Accumulated amortization (945.1) (957.6)
Total estimated future amortization expense 0.0 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 130.4 131.0
Accumulated amortization (105.3) (91.9)
Total estimated future amortization expense 25.1 39.1
Licensing agreements    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 12.1 13.0
Accumulated amortization (11.0) (11.0)
Total estimated future amortization expense 1.1 2.0
Other finite-lived intangible assets    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 20.2 20.1
Accumulated amortization (20.2) (20.1)
Total estimated future amortization expense $ 0.0 $ 0.0