Document and Entity Information Document	3 Months Ended
	Sep. 27, 2014	Oct. 31, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	PERRIGO CO PLC
Entity Central Index Key	0001585364
Current Fiscal Year End Date	--06-27
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 27, 2014
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		133,955,980