Derivative Instruments (Net Cash Received (Paid) Related to Derivatives) (Schedule) (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Derivative [Line Items]
Operating activities	$ (179.0)	$ (248.5)
Financing activities	(303.3)	(177.6)
Total	(482.7)	(426.1)
Liberty Global Group [Member]
Derivative [Line Items]
Operating activities	(161.3)	(252.1)
Financing activities	(303.3)	(140.2)
Total	(464.6)	(392.3)
LiLAC Group [Member]
Derivative [Line Items]
Operating activities	(17.7)	3.6
Payments for (Proceeds from) Derivative Instrument, Investing Activities	(0.4)	0.0
Financing activities	0.0	(37.4)
Total	$ (18.1)	$ (33.8)

Payments for (Proceeds from) Derivative Instrument, Operating Activities

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- Definition

Payments For Proceeds From Derivatives Continuing Operations

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3505-108585

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- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.

+ References

No definition available.

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