Debt and Capital Lease Obligations (UPC Broadband Details of Borrowings) (Schedule) (Details) € in Millions, $ in Millions	12 Months Ended
Dec. 31, 2014 EUR (€)	Dec. 31, 2014 USD ($)
UPC Broadband Holding Bank Facility [Member]
Debt Instrument [Line Items]
Unused borrowing capacity		$ 1,266.0
Outstanding principal amount		$ 3,179.2
UPC Broadband Holding Bank Facility V Debt [Member]
Debt Instrument [Line Items]
Stated interest rate of debt	7.625%	7.625%
Facility amount \| €	€ 500.0
Unused borrowing capacity		$ 0.0
Outstanding principal amount		$ 605.0
UPC Broadband Holding Bank Facility Y Debt [Member]
Debt Instrument [Line Items]
Stated interest rate of debt	6.375%	6.375%
Facility amount \| €	€ 750.0
Unused borrowing capacity		$ 0.0
Outstanding principal amount		$ 907.5
UPC Broadband Holding Bank Facility Z Debt [Member]
Debt Instrument [Line Items]
Stated interest rate of debt	6.625%	6.625%
Facility amount		$ 1,000.0
Unused borrowing capacity		0.0
Outstanding principal amount		$ 1,000.0
UPC Broadband Holding Bank Facility AC Debt [Member]
Debt Instrument [Line Items]
Stated interest rate of debt	7.25%	7.25%
Facility amount		$ 750.0
Unused borrowing capacity		0.0
Outstanding principal amount		$ 750.0
UPC Broadband Holding Bank Facility AD Debt [Member]
Debt Instrument [Line Items]
Stated interest rate of debt	6.875%	6.875%
Facility amount		$ 750.0
Unused borrowing capacity		0.0
Outstanding principal amount		750.0
UPC Broadband Holding Bank Facility AG Debt [Member]
Debt Instrument [Line Items]
Line of credit interest rate description	EURIBOR
Basis spread on variable rate	3.75%
Facility amount		1,554.4
Unused borrowing capacity		0.0
Outstanding principal amount		1,877.2
UPC Broadband Holding Bank Facility AH Debt [Member]
Debt Instrument [Line Items]
Line of credit interest rate description	LIBOR
Basis spread on variable rate	2.50%
Facility amount \| €	€ 1,305.0
Unused borrowing capacity		0.0
Outstanding principal amount		1,302.0
UPC Broadband Holding Bank Facility AI Debt [Member]
Debt Instrument [Line Items]
Line of credit interest rate description	EURIBOR
Basis spread on variable rate	3.25%
Facility amount		1,046.2
Unused borrowing capacity		1,266.0
Outstanding principal amount		0.0
UPC Broadband Holding Bank Elimination of Facilities V, Y, Z, AC and AD in Consolidation [Member]
Debt Instrument [Line Items]
Unused borrowing capacity		0.0
Outstanding principal amount		$ (4,012.5)

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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