Debt and Capital Lease Obligations (Unitymedia KabelBW Exchange and Special Optional Redemptions) (Schedule and Footnotes) (Details) In Millions, unless otherwise specified													12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2013 KBW Notes [Member] USD ($)	Dec. 31, 2013 KBW Senior Notes [Member] USD ($)	Dec. 31, 2013 KBW Senior Notes [Member] EUR (€)	Apr. 30, 2012 KBW Senior Notes [Member]	Dec. 31, 2013 KBW Euro Senior Secured Notes [Member] USD ($)	Dec. 31, 2013 KBW Euro Senior Secured Notes [Member] EUR (€)	Apr. 30, 2012 KBW Euro Senior Secured Notes [Member]	Dec. 31, 2013 KBW Dollar Senior Secured Notes [Member] USD ($)	Apr. 30, 2012 KBW Dollar Senior Secured Notes [Member]	Dec. 31, 2013 KBW Senior Secured Floating Rate Notes [Member] USD ($)	Dec. 31, 2013 KBW Senior Secured Floating Rate Notes [Member] EUR (€)	Dec. 31, 2013 UM Senior Secured Floating Rate Exchange Notes [Member]
Debt Instrument [Line Items]
Outstanding principal amount prior to the Unitymedia KabelBW Exchange	$ 42,691.7	$ 2,986.7	$ 890.0	€ 680.0		$ 1,047.0	€ 800.0		$ 500.0		$ 549.7	€ 420.0
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange		2,748.4	808.8	618.0		962.1	735.1		459.3		518.2	395.9
Principal amount redeemed pursuant to the Special Optional Redemptions		$ 238.3	$ 81.2	€ 62.0		$ 84.9	€ 64.9		$ 40.7		$ 31.5	€ 24.1
Stated interest rate of debt					9.50%			7.50%		7.50%
Description of variable rate basis													EURIBOR
Basis spread on variable rate													4.25%