Restructuring and Related Charges (Schedule of Restructuring Charges Incurred Cumulative to Date) (Details) $ in Millions	Dec. 30, 2016 USD ($)
Restructuring Fiscal 2016 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	$ 13.5
Restructuring Fiscal 2016 Plan [Member] | Specialty Brands
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	7.2
Restructuring Fiscal 2016 Plan [Member] | Specialty Generics
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	1.3
Restructuring Fiscal 2016 Plan [Member] | Nuclear Imaging (including CMDS)
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	0.0
Restructuring Fiscal 2016 Plan [Member] | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	5.0
2013 Mallinckrodt program
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	125.4
2013 Mallinckrodt program | Specialty Brands
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	18.8
2013 Mallinckrodt program | Specialty Generics
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	18.3
2013 Mallinckrodt program | Nuclear Imaging (including CMDS)
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	69.9
2013 Mallinckrodt program | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred cumulative to date	$ 18.4