Restructuring and Related Charges (Schedule of Restructuring Charges Incurred Cumulative to Date) (Details) $ in Millions	Mar. 29, 2019 USD ($)
Restructuring Fiscal 2016 Plan
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 122.9
Restructuring Fiscal 2016 Plan | Specialty Brands
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	81.7
Restructuring Fiscal 2016 Plan | Specialty Generics and Amitiza
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	15.1
Restructuring Fiscal 2016 Plan | Corporate
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	26.1
Restructuring Fiscal 2018 Plan
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	8.7
Restructuring Fiscal 2018 Plan | Specialty Brands
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	3.0
Restructuring Fiscal 2018 Plan | Specialty Generics and Amitiza
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	3.5
Restructuring Fiscal 2018 Plan | Corporate
Restructuring Cost and Reserve
Restructuring costs incurred cumulative to date	$ 2.2