Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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+ Details

Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended			7 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Accounting Policies [Line Items]
Current and long-term restricted cash	$ 78.0us-gaap_RestrictedCashAndInvestments				$ 23.3us-gaap_RestrictedCashAndInvestments				$ 78.0us-gaap_RestrictedCashAndInvestments	$ 23.3us-gaap_RestrictedCashAndInvestments		$ 23.3us-gaap_RestrictedCashAndInvestments
Aggregate allowance for doubtful accounts	116.1				122.6				116.1	122.6		122.6
Asset retirement obligation	65.1us-gaap_AssetRetirementObligation				79.3us-gaap_AssetRetirementObligation				65.1us-gaap_AssetRetirementObligation	79.3us-gaap_AssetRetirementObligation		79.3us-gaap_AssetRetirementObligation
Amounts attributable to Liberty Global shareholders:
Loss from continuing operations									(980.9)	(882.0)	(583.9)
Earnings (loss) from discontinued operations									333.5	(23.7)	971.2
Net earnings (loss) attributable to Liberty Global shareholders	(523.4)us-gaap_NetIncomeLoss	157.1us-gaap_NetIncomeLoss	(249.9)us-gaap_NetIncomeLoss	(78.8)us-gaap_NetIncomeLoss	(121.2)us-gaap_NetIncomeLoss	(830.1)us-gaap_NetIncomeLoss	(11.6)us-gaap_NetIncomeLoss	(1.0)us-gaap_NetIncomeLoss	(695.0)us-gaap_NetIncomeLoss	(963.9)us-gaap_NetIncomeLoss	322.8us-gaap_NetIncomeLoss
Liberty Global [Member]
Amounts attributable to Liberty Global shareholders:
Loss from continuing operations									(1,028.5)	(937.6)	(623.7)
Earnings (loss) from discontinued operations									333.5	(26.3)	946.5
Net earnings (loss) attributable to Liberty Global shareholders									$ (695.0)	$ (963.9)	$ 322.8	$ (1,012.9)