v3.3.1.900

Basis of Presentation (Narrative) (Details)		12 Months Ended
	May. 23, 2012	Dec. 31, 2014 country	Jan. 26, 2014 shares
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)		14
Class C Ordinary Shares [Member]
Basis of Presentation [Line Items]
Number of shares issued for each class of ordinary stock for share dividend (in shares) | shares			1
Austar [Member]
Basis of Presentation [Line Items]
Percentage ownership in subsidiary	54.15%
Video, Broadband Internet and FIxed-Line Telephony [Member] | Europe [Member]
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)		8
Mobile Services [Member] | Europe [Member]
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)		4
Telenet [Member]
Basis of Presentation [Line Items]
Percentage ownership in subsidiary		56.60%
Liberty Cablevision of Puerto Rico LLC [Member]
Basis of Presentation [Line Items]
Percentage ownership in subsidiary		60.00%

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[Line Items] for Basis of Presentation [Table]

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Share Dividend, Number of Shares Issued for Each Outstanding Share under All Classes of Ordinary Shares

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- Definition

The number of countries in which the entity operates as of balance sheet date.

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- Definition

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

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