Contingencies - Securities Litigation (Details) $ in Millions, ₪ in Billions	Jun. 28, 2017 ILS (₪) case individual $ / ₪	Jun. 28, 2017 USD ($) case individual $ / ₪	Nov. 14, 2019 class	Jun. 21, 2017 individual genericPrescriptionPharmaceutical
Loss Contingencies [Line Items]
Number of current or former directors and officers				11
Number of generic prescription pharmaceuticals | genericPrescriptionPharmaceutical				6
Number of classes | class			3
Israel Elec. Corp. Employees' Educ. Fund v. Perrigo Company plc, et al.
Loss Contingencies [Line Items]
Number of current or former directors and officers	11	11
Preliminary class damages	₪ 2.7	$ 760.0
Foreign currency exchange rate, remeasurement | $ / ₪	0.28	0.28
Number of cases dismissed | case	2	2