Restructuring and Related Charges (Schedule of Restructuring Charges Incurred Cumulative to Date) (Details) - Restructuring Fiscal 2018 Plan $ in Millions	Sep. 24, 2021 USD ($)
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 86.5
Specialty Brands
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	3.1
Specialty Generics
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	10.1
Corporate
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 73.3