Other Intangible Assets and Goodwill (Estimated Future Amortization Expense) (Details) - USD ($)
$ in Millions

6 Months Ended

Mar. 29, 2020

Sep. 29, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal Year Ending	Total
2020 (excluding the two quarters ended March 29, 2020)	$	107.6
2021	195.7
2022	161.4
2023	2.8
2024	2.2
Thereafter	4.8
Total estimated future amortization expense	$	474.5

Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year

$ 107.6

Finite-Lived Intangible Assets, Amortization Expense, Year Two

195.7

Finite-Lived Intangible Assets, Amortization Expense, Year Three

161.4

Finite-Lived Intangible Assets, Amortization Expense, Year Four

2.8

Finite-Lived Intangible Assets, Amortization Expense, Year Five

2.2

Finite-Lived Intangible Assets, Amortization Expense, after Year Five

4.8

Finite-Lived Intangible Assets, Net

474.5

$ 578.4

Goodwill [Line Items]

Goodwill

$ 3,493.0

$ 3,490.8