Discontinued Operations and Disposition (Balance Sheet and Income Statement Summary) (Schedule) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets:
Cash and cash equivalents	$ 4.6	$ 0	$ 208.9
Chellomedia [Member]
Assets:
Cash and cash equivalents	4.6
Other current assets	234.1
Investments	21.1
Property and equipment, net	43.1
Goodwill	224.4
Other assets	225.0
Total assets	752.3
Liabilities:
Current liabilities	127.5
Other long-term liabilities	19.8
Total liabilities	147.3
Total equity	605.0
Total liabilities and equity	752.3
Chellomedia and Austar [Member]
Disposal Group, Not Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue			1,128.2
Operating income	12.1	78.7	256.2
Earnings (loss) before income taxes and noncontrolling interests	(1.0)	75.2	178.2
Income tax expense	22.7	28.1	47.7
Earnings (loss) from discontinued operations attributable to Liberty Global shareholders, net of taxes	(26.3)	22.4	68.3
Segment, Discontinued Operations [Member]
Disposal Group, Not Discontinued Operation, Income Statement Disclosures [Abstract]
Income tax expense	22.7	28.1	47.7
Segment, Discontinued Operations [Member] | Virgin Media Acquisition and Puerto Rico Transaction [Member]
Disposal Group, Not Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue	$ 408.6	$ 673.7