Restructuring and Related Charges (Schedule of Net Restructuring and Related Charges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 27, 2013	Dec. 28, 2012
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	$ 8.1	$ 1.0
Less: non-cash charges, including accelerated depreciation	(0.1)	(0.9)
Total charges expected to be settled in cash	8.0	0.1
2013 Mallinckrodt program
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	8.3	0
Other programs
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	$ (0.2)	$ 1.0