Subsequent Events (Details) (USD $)		0 Months Ended		0 Months Ended
	Mar. 28, 2014	Apr. 05, 2014 Questcor Pharmaceuticals, Inc. Business Acquisition	Mar. 28, 2014 Lower Passaic River, New Jersey	Apr. 11, 2014 Lower Passaic River, New Jersey Loss Contingency
Subsequent Event [Line Items]
Date of subsequent event		Apr. 05, 2014		Apr. 11, 2014
Total consideration to be paid		$ 5,600,000,000
Cash to be paid per Questcor share		30.00
Mallinckrodt shares to be issued per Questcor share		0.897
Remedial cost range, minimum	44,900,000		365,000,000	365,000,000
Remedial cost range, maximum	118,600,000		3,200,000,000	3,200,000,000
Remedial cost, estimate			1,700,000,000	1,700,000,000
Environmental liabilities	$ 68,000,000		$ 23,100,000	$ 23,100,000