Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 30, 2014 Class A Ordinary Shares [Member]	Jul. 30, 2014 Class B Ordinary Shares [Member]	Jul. 30, 2014 Class C Ordinary Shares [Member]
Entity Information [Line Items]
Entity Registrant Name	Liberty Global plc
Entity Central Index Key	0001570585
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		214,909,369	10,139,184	554,385,448