Derivative Instruments (Foreign Currency Forwards) (Schedule) (Details) (Foreign Exchange Forward [Member]) In Millions, unless otherwise specified	Jun. 30, 2014 LGE Financing [Member] Foreign Currency Forward 1 [Member] USD ($)	Jun. 30, 2014 LGE Financing [Member] Foreign Currency Forward 1 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 2 [Member] USD ($)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 2 [Member] CZK	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 3 [Member] CHF	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 3 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 4 [Member] CZK	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 4 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 5 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 5 [Member] HUF	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 6 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 6 [Member] PLN	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 7 [Member] EUR (€)	Jun. 30, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 7 [Member] GBP (£)	Jun. 30, 2014 Telenet NV [Member] Foreign Currency Forward 8 [Member] USD ($)	Jun. 30, 2014 Telenet NV [Member] Foreign Currency Forward 8 [Member] EUR (€)	Jun. 30, 2014 VTR GlobalCom [Member] Foreign Currency Forward 9 [Member] USD ($)	Jun. 30, 2014 VTR GlobalCom [Member] Foreign Currency Forward 9 [Member] CLP
Derivative [Line Items]
Notional amount of derivative	$ 1.5	€ 1.1	$ 2.3	44.5	55.4	€ 45.3	361.2	€ 13.5	€ 12.4	3,825.0	€ 36.0	155.2	€ 3.3	£ 2.7	$ 24.5	€ 18.0	$ 27.6	15,336.1