General Term of Vendor Financing Arrangements for Amounts Due

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount (premium).

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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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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.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Amount of long-term debt and capital lease obligations including current maturities.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Debt and Capital Lease Obligations (Components of Debt and Capital Lease Obligations) (Details) € in Millions	6 Months Ended
	Jun. 30, 2018 GBP (£)	Jun. 30, 2018 EUR (€)	Jun. 30, 2018 USD ($)	Feb. 28, 2018 GBP (£)	Feb. 28, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Weighted average interest rate	4.48%	4.48%	4.48%
Unused borrowing capacity			$ 2,566,400,000
Estimated fair value			30,916,600,000			$ 32,694,300,000
Total debt before deferred financing costs, discounts and premiums			31,296,300,000			32,183,900,000
Deferred financing costs, discounts and premiums, net			(150,600,000)			(171,800,000)
Total carrying amount of debt			31,145,700,000			32,012,100,000
Capital lease obligations			672,800,000			691,400,000
Total debt and capital lease obligations			31,818,500,000			32,703,500,000
Current maturities of debt and capital lease obligations			(3,392,600,000)			(3,680,100,000)
Long-term debt and capital lease obligations			28,425,900,000			29,023,400,000
General term of vendor financing arrangements	1 year
Debt			881,700,000			926,600,000
Virgin Media
Debt Instrument [Line Items]
Deferred financing costs, discounts and premiums, net			(54,800,000)
Capital lease obligations			73,500,000			79,100,000
Limitation on availability	£ 675,000,000.0		890,600,000
Virgin Media \| Upon completion of relevant June 30, 2018 compliance reporting requirements
Debt Instrument [Line Items]
Limitation on availability	£ 455,400,000		600,900,000
Telenet
Debt Instrument [Line Items]
Deferred financing costs, discounts and premiums, net			(21,300,000)
Capital lease obligations			461,600,000			456,100,000
UPC Holding
Debt Instrument [Line Items]
Deferred financing costs, discounts and premiums, net			(50,200,000)
Capital lease obligations			80,600,000			89,000,000.0
Other
Debt Instrument [Line Items]
Deferred financing costs, discounts and premiums, net			(24,300,000)
Capital lease obligations			57,100,000			67,200,000
Significant other observable inputs (Level 2)
Debt Instrument [Line Items]
Debt			$ 281,100,000			304,900,000
VM Notes
Debt Instrument [Line Items]
Weighted average interest rate	5.54%	5.54%	5.54%
Unused borrowing capacity	£ 0		$ 0
Estimated fair value			9,406,600,000			9,987,400,000
Total debt before deferred financing costs, discounts and premiums			$ 9,434,000,000.0			9,565,700,000
VM Credit Facilities
Debt Instrument [Line Items]
Weighted average interest rate	4.57%	4.57%	4.57%
Unused borrowing capacity			$ 890,600,000
Estimated fair value			5,482,200,000			4,681,500,000
Total debt before deferred financing costs, discounts and premiums			$ 5,511,000,000.0			4,676,200,000
UPC Holding Bank Facility
Debt Instrument [Line Items]
Weighted average interest rate	4.16%	4.16%	4.16%
Unused borrowing capacity		€ 990.1	$ 1,156,100,000
Estimated fair value			2,535,900,000			2,576,400,000
Total debt before deferred financing costs, discounts and premiums			$ 2,558,900,000			2,576,100,000
UPCB SPE Notes
Debt Instrument [Line Items]
Weighted average interest rate	4.51%	4.51%	4.51%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			2,474,300,000			2,638,800,000
Total debt before deferred financing costs, discounts and premiums			$ 2,541,200,000			2,582,600,000
UPC Holding Senior Notes
Debt Instrument [Line Items]
Weighted average interest rate	4.57%	4.57%	4.57%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			1,183,500,000			1,272,500,000
Total debt before deferred financing costs, discounts and premiums			$ 1,291,500,000			1,313,400,000
Telenet Credit Facility
Debt Instrument [Line Items]
Weighted average interest rate	3.97%	3.97%	3.97%
Unused borrowing capacity			$ 519,700,000
Estimated fair value			2,436,700,000			2,188,900,000
Total debt before deferred financing costs, discounts and premiums			$ 2,452,400,000			2,177,600,000
Telenet Senior Secured Notes
Debt Instrument [Line Items]
Weighted average interest rate	4.68%	4.68%	4.68%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			1,586,100,000			1,724,400,000
Total debt before deferred financing costs, discounts and premiums			$ 1,700,600,000			1,721,300,000
Telenet SPE Notes
Debt Instrument [Line Items]
Weighted average interest rate	4.88%	4.88%	4.88%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			591,400,000			1,014,400,000
Total debt before deferred financing costs, discounts and premiums			$ 557,000,000.0			937,700,000
Vendor financing
Debt Instrument [Line Items]
Weighted average interest rate	3.69%	3.69%	3.69%
Unused borrowing capacity			$ 0
Estimated fair value			2,495,500,000			3,599,000,000.0
Total debt before deferred financing costs, discounts and premiums			$ 2,495,500,000			3,599,000,000.0
ITV Collar Loan
Debt Instrument [Line Items]
Weighted average interest rate	0.71%	0.71%	0.71%
Unused borrowing capacity			$ 0
Estimated fair value			1,404,800,000			1,445,800,000
Total debt before deferred financing costs, discounts and premiums			$ 1,428,100,000			1,463,800,000
Sumitomo Share Loan
Debt Instrument [Line Items]
Weighted average interest rate	0.95%	0.95%	0.95%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			600,600,000			621,700,000
Total debt before deferred financing costs, discounts and premiums			$ 600,600,000			621,700,000
Derivative-related debt instruments
Debt Instrument [Line Items]
Weighted average interest rate	3.41%	3.41%	3.41%
Unused borrowing capacity			$ 0
Estimated fair value			334,700,000			359,800,000
Total debt before deferred financing costs, discounts and premiums			$ 336,400,000			361,500,000
Sumitomo Collar Loan
Debt Instrument [Line Items]
Weighted average interest rate	0.00%	0.00%	0.00%
Unused borrowing capacity		€ 0.0	$ 0
Estimated fair value			0			170,300,000
Total debt before deferred financing costs, discounts and premiums			$ 0			169,100,000
Other
Debt Instrument [Line Items]
Weighted average interest rate	5.92%	5.92%	5.92%
Unused borrowing capacity			$ 0
Estimated fair value			384,300,000			413,400,000
Total debt before deferred financing costs, discounts and premiums			389,100,000			418,200,000
Other \| Virgin Media
Debt Instrument [Line Items]
Total carrying amount of debt			$ 131,000,000.0			$ 160,900,000
Aggregate Variable and Fixed Rate Indebtedness
Debt Instrument [Line Items]
Weighted average interest rate	3.98%	3.98%	3.98%
VM Revolving Credit Facility
Debt Instrument [Line Items]
Facility amount	£ 675,000,000.0		$ 890,600,000
VM Revolving Facility A
Debt Instrument [Line Items]
Facility amount				£ 75,000,000.0	$ 98,900,000
VM Revolving Facility B
Debt Instrument [Line Items]
Facility amount				£ 600,000,000.0	$ 791,700,000
Telenet Facility AG
Debt Instrument [Line Items]
Unused borrowing capacity		€ 400.0	467,100,000
Telenet Overdraft Facility
Debt Instrument [Line Items]
Unused borrowing capacity		25.0	29,200,000
Telenet Revolving Facility
Debt Instrument [Line Items]
Unused borrowing capacity		€ 20.0	$ 23,400,000