Document and Entity Information Document	6 Months Ended
	Dec. 27, 2014	Jan. 30, 2015
Document and Entity Information [Abstract]
Entity Common Stock, Shares Outstanding		140,794,919
Entity Registrant Name	PERRIGO CO PLC
Entity Central Index Key	0001585364
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--06-27
Entity Filer Category	Large Accelerated Filer
Amendment Flag	false
Document Type	10-Q
Document Period End Date	Dec. 27, 2014