Derivative Instruments (Foreign Currency Forwards) (Schedule) (Details) (Foreign Currency Forwards [Member]) In Millions, unless otherwise specified	Dec. 31, 2013 Foreign Currency Forward 1 [Member] LGE Financing [Member] EUR (€)	Dec. 31, 2013 Foreign Currency Forward 1 [Member] LGE Financing [Member] GBP (£)	Dec. 31, 2013 Foreign Currency Forward 2 [Member] LGE Financing [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 2 [Member] LGE Financing [Member] EUR (€)	Dec. 31, 2013 Foreign Currency Forward 3 [Member] UPC Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 3 [Member] UPC Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 4 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 4 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 5 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 5 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 6 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 6 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 7 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 7 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 8 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 8 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 9 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 9 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 10 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 10 [Member] UPC Broadband Holding [Member] EUR (€)	Dec. 31, 2013 Foreign Currency Forward 11 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 11 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 12 [Member] UPC Broadband Holding [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 12 [Member] UPC Broadband Holding [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 13 [Member] Telenet NV [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 13 [Member] Telenet NV [Member] CHF	Dec. 31, 2013 Foreign Currency Forward 14 [Member] VTR GlobalCom [Member] USD ($)	Dec. 31, 2013 Foreign Currency Forward 14 [Member] VTR GlobalCom [Member] CHF
Derivative [Line Items]
Currency purchased forward	€ 722.7			€ 275.1	$ 479.0		$ 2.5		$ 86.6		$ 15.0		$ 13.9		$ 40.0		$ 2.1		123.5		$ 6,650.0		$ 109.0		$ 43.0		$ 28.6
Currency sold forward		£ 524.9	$ 230.0			415.1		49.3		106.5		388.4		4,250.0		176.6		2.5		€ 100.7		22.4		26.3		31.9		14,984.2