Basis of Presentation (Narrative) (Details)	3 Months Ended
	Mar. 31, 2014
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)	14
Puerto Rico
Basis of Presentation [Line Items]
Percentage ownership in subsidiary	60.00%
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)	9
Mobile Services [Member] | Europe [Member]
Basis of Presentation [Line Items]
Number of countries in which entity provides services (in countries)	3
Telenet [Member]
Basis of Presentation [Line Items]
Percentage ownership in subsidiary	57.70%