Restructuring and Related Charges (Schedule of Restructuring Reserves by Type of Cost) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 27, 2013
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 25.5
Charges	10.5
Changes in estimate	(2.5)
Cash payments	(5.9)
Ending Balance	27.6
2013 Mallinckrodt program
Restructuring Reserve [Roll Forward]
Beginning Balance	14.9
Charges	10.2
Changes in estimate	(2.0)
Cash payments	(2.2)
Ending Balance	20.9
Other programs
Restructuring Reserve [Roll Forward]
Beginning Balance	10.6
Charges	0.3
Changes in estimate	(0.5)
Cash payments	(3.7)
Ending Balance	$ 6.7