Restructuring and Related Charges (Schedule of Restructuring Reserves by Type of Cost) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 27, 2014
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 25.5
Charges	57.4
Changes in estimate	(6.5)
Cash payments	(37.8)
Currency translation and other (1)	(1.8)
Ending Balance	36.8
2013 Mallinckrodt program
Restructuring Reserve [Roll Forward]
Beginning Balance	14.9
Charges	55.6
Changes in estimate	(4.3)
Cash payments	(31.6)
Currency translation and other (1)	(0.9)
Ending Balance	33.7
Other programs
Restructuring Reserve [Roll Forward]
Beginning Balance	10.6
Charges	1.8
Changes in estimate	(2.2)
Cash payments	(6.2)
Currency translation and other (1)	(0.9)
Ending Balance	3.1
Consulting Costs
Restructuring Reserve [Roll Forward]
Ending Balance	$ 8.5