Segment Reporting (Narrative) (Details)	6 Months Ended
	Jun. 30, 2014
Segment Reporting Information [Line Items]
Threshold percentage used to determine reportable segments using one of three criteria of revenue, operating cash flow or total assets	10.00%
Performance measures, percentage of reportable segment revenue and operating cash flow presented	100.00%
Total European Operations Division [Member]
Segment Reporting Information [Line Items]
Number of European countries in operating segment (in countries)	12
Telenet and Liberty Puerto Rico [Member]
Segment Reporting Information [Line Items]
Percentage of minority interest revenues and expenses included in net earnings attributable to noncontrolling interest	100.00%