Derivative Instruments (Foreign Currency Forwards) (Schedule) (Details) (Foreign Currency Forwards [Member]) In Millions, unless otherwise specified	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 1 [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 1 [Member] CZK	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 2 [Member] CHF	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 2 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 3 [Member] CZK	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 3 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 4 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 4 [Member] HUF	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 5 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 5 [Member] PLN	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 6 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 6 [Member] GBP (£)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 7 [Member] CHF	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 7 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 8 [Member] CZK	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 8 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 9 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 9 [Member] HUF	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 10 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 10 [Member] PLN	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 11 [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding [Member] Foreign Currency Forward 11 [Member] RON	Dec. 31, 2014 VTR [Member] Foreign Currency Forward 12 [Member] USD ($)	Dec. 31, 2014 VTR [Member] Foreign Currency Forward 12 [Member] CLP
Derivative [Line Items]
Notional amount of derivative	$ 0.8	14.9	76.0	€ 63.8	123.3	€ 4.5	€ 4.1	1,275.0	€ 12.0	51.0	€ 1.4	£ 1.2	67.0	€ 55.7	300.0	€ 10.9	€ 23.6	7,400.0	€ 20.9	90.0	€ 6.9	31.0	$ 52.4	31,739.4