Basis of Presentation (Narrative) (Details)		6 Months Ended		0 Months Ended
Jun. 30, 2013 Liberty Global [Member] Countries	Jun. 30, 2013 Telenet	Jun. 30, 2013 VTR [Member]	Jun. 30, 2013 VTR Wireless SA [Member]	Jun. 30, 2013 Europe [Member] LGI Europe Holding BV [Member] Countries	Nov. 08, 2012 LGI Broadband Operations [Member] Puerto Rico	May 23, 2012 Austar [Member]
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)	14				9
Percentage ownership in subsidiary		57.90%	80.00%	80.00%		60.00%	54.15%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration