Contingencies (Details) $ in Millions, ₪ in Billions					3 Months Ended	4 Months Ended	12 Months Ended
	May 31, 2019 plaintiff	Jan. 16, 2019 product defendant	Jun. 28, 2017 USD ($) product defendant	Jun. 28, 2017 ILS (₪) product defendant	Mar. 28, 2020 lawsuit tender $ / ₪	Apr. 29, 2020 lawsuit	Dec. 31, 2018 case	Apr. 21, 2020 product case	Mar. 31, 2020 product case defendant	Mar. 05, 2020 product case defendant	Mar. 02, 2020 product case	Mar. 01, 2020 defendant	Feb. 12, 2020 product case	Dec. 27, 2019 defendant	Dec. 23, 2019 defendant	Dec. 20, 2019 product plaintiff case	Dec. 18, 2019 product plaintiff case	Dec. 16, 2019 defendant	Dec. 11, 2019 defendant	Nov. 14, 2019 class	Jul. 18, 2019 manufacturer individual health_plan	Feb. 22, 2019 product plaintiff case defendant	Feb. 14, 2019 case defendant	Feb. 06, 2019 product case defendant	Jan. 31, 2019 product case defendant	Nov. 15, 2018 product case	Oct. 29, 2018 product case defendant	Aug. 03, 2018 product manufacturer	Apr. 20, 2018 product case	Feb. 16, 2018 case defendant	Feb. 13, 2018 product case defendant	Jan. 26, 2018 product complaint plaintiff case	Jan. 16, 2018 product defendant	Dec. 31, 2017 case	Nov. 01, 2017 defendant	Jun. 21, 2017 product individual case	Dec. 28, 2013 product supermarket manufacturer	Dec. 31, 2011 product manufacturer class
Loss Contingencies [Line Items]
Number of Putative Classes																				3																3		3
Number of manufacturers | manufacturer																																						27
Number of generic prescription pharmaceuticals | product																																6				6		15
Number of products manufactured by the Company | product																																						2
Number of individuals | individual																																				11
Number of plaintiff groups | plaintiff																																2
Number of complaints | complaint																																2
Number of cases																																2
Number of overlapped cases																																2
Price-Fixing Lawsuit, Supermarket Chains
Loss Contingencies [Line Items]
Number of manufacturers | manufacturer																																					35
Number of supermarket chains | supermarket																																					3
Number of generic prescription pharmaceuticals | product																																					31
Price-fixing Lawsuit, Managed Care Organization
Loss Contingencies [Line Items]
Number of manufacturers | manufacturer																												27
Number of generic prescription pharmaceuticals | product																												17
Price-fixing Lawsuit, Health Insurance Carrier
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product		30
Number of defendants | defendant		30
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, Several Counties in New York
Loss Contingencies [Line Items]
Number of co-defendants | defendant															28
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
Price-fixing Lawsuit, Health Plans
Loss Contingencies [Line Items]
Number of manufacturers | manufacturer																					53
Number of health plans | health_plan																					87
Number of individuals | individual																					17
Carmignac Gestion, S.A. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of co-defendants | defendant																																			3
Manning & Napier Advisors, LLC v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																																	6
Number of co-defendants | defendant																																	3
Harel Insurance Company, LTD., et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																															6
Number of cases with similar factual allegations																															3
Number of co-defendants | defendant																															2
Number of opt out cases																															4
First Manhattan Co. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals																														6
Number of co-defendants | defendant																														3
Number of opt out cases																														4
TIAA-CREF Investment Management, LLC., et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																													6
Number of opt out cases																													6
Nationwide Mutual Funds, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																											6
Number of co-defendants | defendant																											2
Number of opt out cases																											6
WCM Alternative: Event-Drive Fund, et al. v. Perrigo Co., plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																										6
Number of opt out cases																										7
Hudson Bay Master Fund Ltd., et al. v. Perrigo Co., plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals																										6
Number of opt out cases																										8
Schwab Capital Trust, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																									6
Number of co-defendants | defendant																									2
Number of opt out cases																									9
Sculptor Master Fund, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																								6
Number of co-defendants | defendant																								2
Number of opt out cases																								10
Highfields Capital I LP, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of co-defendants | defendant																							2
Number of opt out cases																							11
Aberdeen Canada Funds - Global Equity Fund, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																						6
Number of co-defendants | defendant																						2
Number of additional plaintiffs | plaintiff																						30
Number of opt out cases																						12
Discovery Global Citizens Master Fund, Ltd., et al. v. Perrigo Co. plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																	6
Number of other funds in same plaintiff group | plaintiff																	3
Number of cases with similar factual allegations																	4
Number of opt out cases																	13
York Capital Management, L.P., et al. v. Perrigo Co. plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product																6
Number of other funds in same plaintiff group | plaintiff																6
Number of cases with similar factual allegations																4
Number of opt out cases																14
Burlington Loan Management DAC v. Perrigo Co. plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product													6
Number of cases with similar factual allegations													6
Number of opt out cases													15
Universities Superannuation Scheme Limited v. Perrigo Co. plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product											6
Number of cases with similar factual allegations											6
Number of opt out cases											16
Principal Funds, Inc., et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product										6
Number of co-defendants | defendant										2
Number of opt out cases										17
Cases Filed in Israel
Loss Contingencies [Line Items]
Number of cases																																		3
Number of cases dismissed							1
Number of cases stayed							1
Israel Elec. Corp. Employees' Educ. Fund v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product			6	6
Number of current or former directors and officers | defendant			11	11
Damages sought by plaintiff			$ 760.0	₪ 2.7
Foreign currency exchange rate, remeasurement | $ / ₪					0.28
In re Perrigo Company plc Sec. Litig.
Loss Contingencies [Line Items]
Number of defendants added | plaintiff	1
Talcum Powder Litigation
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit					27
Number of tenders accepted for a portion of the defense costs and liability from a retailer | tender					1
Subsequent Event | Kuwait Investment Authority, et al. v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product									6
Number of co-defendants | defendant									2
Number of opt out cases									18
Subsequent Event | BlackRock Global Allocation Fund, et al. v. Perrigo Co. plc, et al.
Loss Contingencies [Line Items]
Number of generic prescription pharmaceuticals | product								6
Number of opt out cases								19
Subsequent Event | Ranitidine Litigation
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit						6