Document and Entity Information - USD ($)	6 Months Ended
	Dec. 31, 2015	Feb. 19, 2016
Entity Information [Line Items]
Entity Registrant Name	PERRIGO CO PLC
Entity Central Index Key	0001585364
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-KT
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		143,198,631
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float	$ 20,712,935,064