Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- References

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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- Definition

Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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-Section 50
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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=51831255

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=51831270

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Acquisitions (Proforma Information) (Schedule and Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue:
Change in valuation allowances										$ 373.4
Revenue	$ 4,615.2	$ 4,497.2	$ 4,602.2	$ 4,533.7	$ 4,468.0	$ 4,276.5	$ 3,057.8	$ 2,671.9		18,248.3	$ 14,474.2	$ 9,930.8
Net loss	$ 523.4	$ (157.1)	$ 249.9	$ 78.8	$ 121.2	$ 830.1	$ 11.6	$ 1.0		695.0	963.9	(322.8)
Ziggo Acquisition and Virgin Media Acquisition [Member]
Revenue:
Revenue										20,122.3	19,709.8
Net earnings (loss) attributable to Liberty Global shareholders										$ (1,223.0)	$ (1,200.2)
Basic and diluted earnings (loss) attributable to Liberty Global shareholders per share										$ (1.35)	$ (1.30)
Ziggo Acquisition [Member]
Revenue:
Revenue										$ 272.0
Net loss										98.7
Virgin Media Acquisition and Puerto Rico Transaction [Member]
Revenue:
Revenue											$ 17,647.7	17,138.7
Net earnings (loss) attributable to Liberty Global shareholders											$ (1,300.4)	$ 3,701.5
Basic earnings (loss) attributable to Liberty Global shareholders per share											$ (1.63)	$ 4.48
Diluted earnings (loss) attributable to Liberty Global shareholders per share											$ (1.63)	$ 4.39
Change in valuation allowances									$ 4,144.9
Virgin Media Acquisition [Member]
Revenue:
Revenue											$ 3,653.7
Net loss											987.8
Continuing operations [Member] \| Ziggo Acquisition and Virgin Media Acquisition [Member]
Revenue:
Revenue										20,095.7	19,301.2
Continuing operations [Member] \| Virgin Media Acquisition and Puerto Rico Transaction [Member]
Revenue:
Revenue											17,239.1	$ 16,465.0
Discontinued operations [Member] \| Chellomedia and Austar [Member]
Revenue:
Discontinued operations										$ 26.6	408.6	673.7
Discontinued operations [Member] \| Virgin Media Acquisition and Puerto Rico Transaction [Member]
Revenue:
Revenue											$ 408.6	$ 673.7