Commitments and Contingencies - Price Fixing Lawsuits (Details)	Sep. 26, 2020 retailer	Jan. 16, 2019 defendant genericPrescriptionPharmaceutical	Dec. 31, 2021 class complaint	Oct. 08, 2021 healthPlan individual manufacturer	Aug. 30, 2021 pharmaceuticalCompany	Apr. 03, 2021 manufacturer	Dec. 15, 2020 brand pharmaceuticalCompany manufacturer	Dec. 14, 2020 manufacturer	Dec. 11, 2020 manufacturer	Sep. 04, 2020 manufacturer	Aug. 27, 2020 manufacturer	Jul. 14, 2020 case manufacturer brand	Jul. 09, 2020 pharmaceuticalCompany	Jun. 10, 2020 employee pharmaceuticalProduct retailer manufacturer plaintiffGroup	Jun. 09, 2020 manufacturer	May 31, 2020 healthPlan individual manufacturer	Mar. 01, 2020 defendant	Dec. 27, 2019 defendant	Dec. 23, 2019 defendant	Dec. 16, 2019 defendant	Dec. 11, 2019 defendant	Nov. 14, 2019 class	Jul. 18, 2019 individual manufacturer healthPlan	Apr. 30, 2019 genericPrescriptionPharmaceutical pharmaceuticalProduct manufacturer	Dec. 21, 2018 manufacturer genericPrescriptionPharmaceutical	Aug. 03, 2018 genericPrescriptionPharmaceutical manufacturer	Jan. 22, 2018 manufacturer genericPrescriptionPharmaceutical supermarket	Jun. 21, 2017 genericPrescriptionPharmaceutical individual class
Loss Contingencies [Line Items]
Number of classes | class			3																			3						3
Number of complaints | complaint			2
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical																												6
Number of individuals | individual																												11
Price-fixing Lawsuit, Westchester County, NY
Loss Contingencies [Line Items]
Number of Other Pharmaceutical Companies | pharmaceuticalCompany					45
Price-fixing Lawsuit, Pennsylvania State Court
Loss Contingencies [Line Items]
Number of manufacturers				46
Number of health plans | healthPlan				20
Number of individuals | individual				24
State Attorney General Complaint
Loss Contingencies [Line Items]
Number of manufacturers														35
Number of generic prescription pharmaceuticals | pharmaceuticalProduct														80
Number of additional states and territories | plaintiffGroup														50
Loss Contingency, Number of Former Employees | retailer														1
Number of current employees | employee														1
Acetaminophen Litigation
Loss Contingencies [Line Items]
Loss Contingency, Number of Retailers | retailer	10
Canadian Class Action Complaint
Loss Contingencies [Line Items]
Number of manufacturers						29
States' May 2019 Case Alleging Conspiracy (which does not Name Perrigo a Defendant)
Loss Contingencies [Line Items]
Number of products included in expedited cases | brand												120
Number of manufacturers												35
Overarching Conspiracy Class Actions
Loss Contingencies [Line Items]
Number of manufacturers																								27
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical																								135
Number of formulations of products manufactured by the Company | genericPrescriptionPharmaceutical																								2
Number of drugs | pharmaceuticalProduct																								1
Number of Cases Included in Expedited Schedule | case												0
Price-fixing Lawsuit, Health Plans
Loss Contingencies [Line Items]
Number of manufacturers																							53
Number of health plans | healthPlan																7							87
Number of dozens of manufacturers																3
Number of individuals | individual																17							17
Price-fixing Lawsuit, Health Insurance Carrier
Loss Contingencies [Line Items]
Number of manufacturers															25
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical		30
Number of defendants | defendant		30
Price-fixing Lawsuit, Drugstore Chain
Loss Contingencies [Line Items]
Number of manufacturers							45		45
Number of drugs | brand							63
Number of Other Pharmaceutical Companies | pharmaceuticalCompany													39
Price-Fixing Lawsuit, Suffolk County of New York
Loss Contingencies [Line Items]
Number of manufacturers											35
Price-Fixing Lawsuit, Drug Wholesaler and Distributor
Loss Contingencies [Line Items]
Number of manufacturers										39
Price-Fixing Lawsuit, Supermarket Chains
Loss Contingencies [Line Items]
Number of manufacturers								45																			35
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical																											31
Number of supermarket chains | supermarket																											3
Price-fixing Lawsuit, Several Counties in New York
Loss Contingencies [Line Items]
Number of co-defendants | defendant																			28
Number of Other Pharmaceutical Companies | pharmaceuticalCompany							45
Price-Fixing Lawsuit, Supermarket Chains, Amended Complaint
Loss Contingencies [Line Items]
Number of manufacturers																									39
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical																									33
Price-fixing Lawsuit, Managed Care Organization
Loss Contingencies [Line Items]
Number of manufacturers																										27
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical																										17
Price-fixing Lawsuit, Healthcare Service Company
Loss Contingencies [Line Items]
Number of co-defendants | defendant																					38
Price-fixing Lawsuit, Medicare Advantage Claims Recovery Company
Loss Contingencies [Line Items]
Number of co-defendants | defendant																				39
Price-fixing Lawsuit, Healthcare Management Organization
Loss Contingencies [Line Items]
Number of co-defendants | defendant																		25
Price-fixing Lawsuit, Harris County of Texas
Loss Contingencies [Line Items]
Number of co-defendants | defendant																	29