Debt and Capital Lease Obligations (UPC Broadband Details of Borrowings) (Schedule) (Details)									12 Months Ended
	Dec. 31, 2014 UPC Broadband Holding Bank Facility [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility V Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility V Debt [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding Bank Facility Y Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility Y Debt [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding Bank Facility Z Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AC Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AD Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AG Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AH Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AH Debt [Member] EUR (€)	Dec. 31, 2014 UPC Broadband Holding Bank Facility AI Debt [Member] USD ($)	Dec. 31, 2014 UPC Broadband Holding Bank Elimination of Facilities V, Y, Z, AC and AD in Consolidation [Member] USD ($)
Debt Instrument [Line Items]
Stated interest rate of debt		7.625%	7.625%	6.375%	6.375%	6.625%	7.25%	6.875%
Line of credit interest rate description									EURIBOR	LIBOR	LIBOR	EURIBOR
Basis spread on variable rate									3.75%	2.50%	2.50%	3.25%
Facility amount			€ 500,000,000		€ 750,000,000	$ 1,000,000,000	$ 750,000,000	$ 750,000,000	$ 1,554,400,000		€ 1,305,000,000	$ 1,046,200,000
Unused borrowing capacity	1,266,000,000	0		0		0	0	0	0	0		1,266,000,000	0
Outstanding principal amount	$ 3,179,200,000	$ 605,000,000		$ 907,500,000		$ 1,000,000,000	$ 750,000,000	$ 750,000,000	$ 1,877,200,000	$ 1,302,000,000		$ 0	$ (4,012,500,000)