Restructuring and Related Charges (Schedule of Net Restructuring and Related Charges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	$ 21.7	$ 6.9	$ 29.8	$ 7.9
Less: non-cash charges, including accelerated depreciation	(2.6)	(0.5)	(2.7)	(1.4)
Total charges expected to be settled in cash	19.1	6.4	27.1	6.5
2013 Mallinckrodt program
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	22.6	0	30.9	0
Other programs
Restructuring Cost and Reserve [Line Items]
Total restructuring and related charges	$ (0.9)	$ 6.9	$ (1.1)	$ 7.9