Debt and Capital Lease Obligations (Unitymedia KabelBW Exchange and Special Optional Redemptions) (Schedule and Footnotes) (Details)														12 Months Ended
	Dec. 31, 2014 USD ($)	May 04, 2012 KBW Notes [Member] USD ($)	Dec. 31, 2014 KBW Senior Notes [Member] EUR (€)	May 04, 2012 KBW Senior Notes [Member] USD ($)	Apr. 30, 2012 KBW Senior Notes [Member]	Dec. 31, 2014 KBW Euro Senior Secured Notes [Member] EUR (€)	May 04, 2012 KBW Euro Senior Secured Notes [Member] USD ($)	Apr. 30, 2012 KBW Euro Senior Secured Notes [Member]	Dec. 31, 2014 KBW Dollar Senior Secured Notes [Member] USD ($)	May 04, 2012 KBW Dollar Senior Secured Notes [Member] USD ($)	Apr. 30, 2012 KBW Dollar Senior Secured Notes [Member]	Dec. 31, 2014 KBW Senior Secured Floating Rate Notes [Member] EUR (€)	May 04, 2012 KBW Senior Secured Floating Rate Notes [Member] USD ($)	Dec. 31, 2014 UM Senior Secured Floating Rate Exchange Notes [Member]
Debt Instrument [Line Items]
Principal amount outstanding	$ 44,612,200,000	$ 2,986,700,000	€ 680,000,000	$ 890,000,000		€ 800,000,000	$ 1,047,000,000		$ 500,000,000	$ 500,000,000		€ 420,000,000	$ 549,700,000
Principal amount exchanged pursuant to the Unitymedia KabelBW Exchange		2,748,400,000	618,000,000	808,800,000		735,100,000	962,100,000		459,300,000	459,300,000		395,900,000	518,200,000
Principal amount redeemed pursuant to the Special Optional Redemptions		$ 238,300,000	€ 62,000,000	$ 81,200,000		€ 64,900,000	$ 84,900,000		$ 40,700,000	$ 40,700,000		€ 24,100,000	$ 31,500,000
Stated interest rate of debt					9.50%			7.50%			7.50%
Description of variable rate basis														EURIBOR
Basis spread on variable rate														4.25%