v3.22.2.2
Cover
Dec. 08, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Dec. 08, 2022
Entity File Number 001-35803
Entity Registrant Name Mallinckrodt plc
Entity Central Index Key 0001567892
Entity Tax Identification Number 98-1088325
Entity Incorporation, State or Country Code L2
Entity Address, Address Line One College Business & Technology Park
Entity Address, Address Line Two Cruiserath
Entity Address, Address Line Three Blanchardstown
Entity Address, City or Town Dublin
Entity Address, Country IE
Entity Address, Postal Zip Code 15
Country Region 353
City Area Code 1
Local Phone Number 696 0000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Ordinary shares, par value $0.01 per share
Trading Symbol MNK
Security Exchange Name NYSEAMER
Entity Emerging Growth Company false